JP4772835B2 - Portable information processing apparatus, camera inspection method, and computer-executable program - Google Patents

Description

  The present invention relates to a portable information processing device, a camera inspection method, and a computer-executable program. More specifically, the present invention relates to a portable information processing device, a camera inspection method, and a computer-executable program.

  In a digital camera, a CCD or a CMOS is used as an image sensor, and it is known that white scratches (pixel defects) occur in the image sensor at the manufacturing stage. This white scratch significantly deteriorates the captured image. Further, it is known that white scratches are generated in the image sensor not only at the manufacturing stage but also after the product shipment due to the influence of cosmic rays or the like. White scratches that occur after product shipment may disappear and reappear with time. In a conventional digital camera, for example, the following method has been proposed as a method for inspecting missing pixels of an image sensor after product shipment.

  In Patent Document 1, in the white scratch detection mode, the image processing DSP searches for image data of black image information taken out from the CCD with the iris closed, in units of pixels of the CCD, and the image processing DSP A technique has been proposed in which when the data is image data equal to or greater than a threshold value, the vertical and horizontal positions of the pixels of the image data in the CCD are stored in a register in the image processing DSP as the positions of defective pixels causing white flaws. .

  In Patent Document 2, the imaging device is shielded with a shutter, and in this state, image data for defective pixel detection is captured by the imaging device, stored in a memory, and a predetermined threshold value or more is detected in the image data for defective pixel detection. There has been proposed a technique for detecting a defective pixel having a signal value of 1 and recording its address in a ROM of a camera.

  By the way, recently, a portable information processing apparatus such as a notebook personal computer or a mobile phone has been widely used. As a camera mounted on such a portable information processing apparatus, an inexpensive camera is used as compared with a single digital camera, and a camera without a shutter or an iris is generally used. Therefore, the portable information processing apparatus has a problem that it is not possible to inspect the missing pixel of the camera using the shutter or the iris after the product is shipped.

JP-A-2005-159600 JP 2006-157192 A

  The present invention has been made in view of the above problems, and a portable information processing apparatus capable of executing inspection of a camera mounted on a portable information processing apparatus with a low-cost configuration, an inspection method for the camera, and An object is to provide a computer-executable program.

In order to solve the above-described problems and achieve the object, the present invention provides a main body side housing, a display and a camera provided on the side of the main body side housing that can be opened and closed and closed. In a portable information processing apparatus comprising a display-side casing, a detection unit that detects a closed state of the display-side casing, and when the detection unit detects a closed state of the display-side casing, A missing pixel inspection mode execution means for executing a missing pixel inspection mode for inspecting a missing pixel of an image sensor of a camera, wherein the missing pixel inspection mode execution means is in a closed state of the display-side casing by the detection means And detecting each pixel of the image data captured in accordance with an instruction from the imaging instruction unit. A missing pixel determining means for determining a missing pixel by
And a missing pixel information storage control means for storing in the storage means information on missing pixels determined as missing pixels by the missing pixel determination means.

  According to a preferred aspect of the present invention, in normal imaging, the camera may correct missing pixel data in captured image data with reference to missing pixel information stored in the storage unit. desirable.

  According to a preferred aspect of the present invention, it is desirable that the camera not only corrects the missing pixel data of the captured image data while performing imaging using all effective pixels in the missing pixel inspection mode.

  According to a preferred aspect of the present invention, the missing pixel determination means includes a counting means for counting the total number of missing pixels determined by the missing pixel determination means, and a total number of missing pixels counted by the counting means. A first determination unit that determines whether or not the threshold value is equal to or greater than a threshold value; And determining means.

  According to a preferred aspect of the present invention, the missing pixel inspection mode execution means turns off the display and detects the missing pixel inspection when the detection means detects the closed state of the display-side housing. It is desirable to execute the mode.

  According to a preferred aspect of the present invention, it is desirable that the missing pixel inspection mode executing means executes the missing pixel inspection mode when an execution condition for the missing pixel inspection mode is satisfied or according to a user instruction. .

  In order to solve the above-described problems and achieve the object, the present invention provides a main body side housing, a display and a camera provided on the side surface which is provided to be openable and closable with respect to the main body side housing. In a camera inspection method for a portable information processing apparatus having a display-side housing, a detection step of detecting a closed state of the display-side housing, and a closed state of the display-side housing detected in the detection step A missing pixel inspection mode execution step for executing a missing pixel inspection mode for inspecting a missing pixel of the image sensor of the camera, wherein the missing pixel inspection mode execution step is performed in the display side housing in the detection step. An imaging instruction process for causing the camera to perform imaging for a missing pixel inspection when a closed state of the body is detected, and image data captured in accordance with an instruction of the imaging instruction process A missing pixel determination step of scanning each pixel of the pixel and determining a missing pixel, and a missing pixel information storage step of storing information on the pixel determined as the missing pixel in the missing pixel determination step in a storage unit It is characterized by that.

  In order to solve the above-described problems and achieve the object, the present invention provides a main body side housing, a display and a camera provided on the side surface which is provided to be openable and closable with respect to the main body side housing. In a program mounted on a portable information processing apparatus having a display-side casing, a detection step of detecting a closed state of the display-side casing, and a closed state of the display-side casing detected in the detection step A missing pixel inspection mode execution step for executing a missing pixel inspection mode for performing a missing pixel inspection mode for inspecting a missing pixel of the image sensor of the camera, wherein the missing pixel inspection mode execution step is performed in the detection step. When the closed state of the display-side housing is detected, an imaging instruction process for causing the camera to perform imaging for a missing pixel inspection, and instructions for the imaging instruction process The missing pixel determining step of scanning each pixel of the image data captured in this manner to determine the missing pixel, and the missing pixel that stores the information of the pixel determined as the missing pixel in the missing pixel determining step in the storage unit And an information storage step.

  According to the present invention, portable information comprising: a main body side housing; and a display side housing that is provided so as to be openable and closable with respect to the main body side housing and has a display and a camera on the closed surface. In the processing apparatus, a detection unit that detects a closed state of the display-side casing, and a missing unit that inspects a missing pixel of the image sensor of the camera when the detection unit detects the closed state of the display-side casing. A missing pixel inspection mode executing means for executing a pixel inspection mode, and the missing pixel inspection mode executing means detects a missing pixel in the camera when the detection means detects a closed state of the display-side casing. An image instructing unit that performs image capturing for the image, and a missing pixel that scans each pixel of the image data imaged in accordance with an instruction from the image instructing unit and determines a missing pixel A camera mounted on the portable information processing apparatus. The camera includes: a determining unit; and a missing pixel information storage control unit that stores in the storage unit information on the missing pixel determined to be a missing pixel by the missing pixel determination unit. It is possible to provide a portable information processing apparatus that can execute the inspection in a low-cost configuration.

  Hereinafter, the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

  FIGS. 1-1 to 1-2 are schematic external views of a notebook PC to which a portable information processing apparatus according to an embodiment of the present invention is applied. As illustrated in FIG. 1A, the notebook PC 1 includes a main body side housing 2 and a display side housing 3 that are substantially rectangular parallelepipeds. The main body side housing 2 includes an input unit 4 having a keyboard, track points (pointing devices), and the like, and a lid sensor (not shown) that detects opening and closing of the display side housing 3. The display-side housing 3 includes a liquid crystal display 5 and a camera module 6 that is disposed at a substantially center above the liquid crystal display 5 and that can image a subject in front.

  Further, the main body side housing 2 and the display side housing 3 are connected to each other by a pair of left and right connecting portions (hinge portions) 7a and 7b at the respective end portions, and the connecting portions 7a and 7b are connected to these housings. Is supported to be openable and closable. As shown in FIG. 1B, when the display-side housing 3 is folded (closed) on the main body-side housing 2, in the notebook PC 1, a lid sensor (not shown) indicates the closed state of the display-side housing 3. If a predetermined condition is detected, a missing pixel inspection mode for inspecting a missing pixel caused by white scratches or dust on the image sensor of the camera module 6 is executed.

  FIG. 2 is a diagram showing a schematic hardware configuration example of the notebook PC 1 of FIG. As shown in the figure, the notebook PC 1 includes a CPU 11, a ROM 12, a memory 13, an HDD (hard disk) 14, a liquid crystal display 5, a graphics adapter 16, a video port 17, a USB interface 18, and a camera module 6. The embedded controller 19, the input unit 4, the lid sensor 20, and the power supply circuit 21 are provided, and each unit is connected directly or indirectly via a bus.

  The CPU 11 controls the entire notebook PC 1 by the OS 14 a stored in the HDD 14 connected via the bus, and controls the function of executing processing based on various programs stored in the HDD 14. The ROM 12 stores a BIOS (Basic Input / Output System: basic input / output system) 12a, data, and the like.

  The memory 13 is composed of a cache memory and a RAM, and is a writable memory used as a work area for writing processing data of the execution program as a read area for the execution program of the CPU 11.

  The HDD (hard disk) 14 includes, for example, an OS 14 a for controlling the entire notebook PC 1 such as Windows (R), various drivers 14 b for operating hardware of peripheral devices, and a camera for controlling the camera module 6. A function to store the application (application program) 14c and other applications directed to a specific job.

  The graphics adapter 16 converts display information into a video signal under the control of the CPU 11, outputs the converted video signal to the liquid crystal display 15, or outputs the converted video signal to the outside via the video port 17.

  The liquid crystal display 5 includes an LCD controller 5a, an LCD panel 5b, a backlight controller 5c, and a backlight 5d. The LCD panel 5 b is a transmissive or transflective liquid crystal panel, and has a function of displaying various types of information under the control of the CPU 11. The LCD controller 5a performs display control of the LCD panel 5b according to the control of the CPU 11, and displays various information according to the video signal input from the graphic adapter 16 on the LCD panel 5b. The backlight controller 5 c controls the luminance of the backlight 5 d based on control information input from the CPU 11 via the graphics adapter 16. The backlight 5d is composed of an LED or a reflector and illuminates the LCD panel 5b.

  The embedded controller 18 is connected to the input unit 4, the lid sensor 20, and the power supply circuit 21, and controls operations of the input unit 4, the lid sensor 20, and the power supply circuit 21. The input unit 4 is a user interface for a user to perform an input operation. The input unit 4 is a keyboard composed of various keys for inputting characters, commands, and the like, a tracks pointer for moving a cursor on the screen, and selecting various menus. Etc. The lid sensor 20 notifies the CPU 11 of a closing detection signal via the embedded controller 19 when the closing state of the display-side housing 3 is detected.

  The power supply circuit 21 includes an AC adapter, an intelligent battery, a charger for charging the intelligent battery, a DC / DC converter, and the like. The embedded controller 18 controls the power supply to each device by the power supply circuit 21 according to the instruction of the BIOS 12a, and manages the system state. For example, when the BIOS (Basic Input / Output System: basic input / output system) 12a detects the occurrence of an event (operation (operation) of a trigger device such as a power button, sleep button, lid sensor 20, or switch), the embedded controller 19 The embedded controller 19 that receives this command controls the power supply circuit 21 to perform power control corresponding to a predetermined energy saving mode. Six states S0 to S5 are defined as system states (ACPI states), S0 is a full operation state, S1 is a low power consumption state (however, both the processor and chipset are powered on), and S2 is a low power consumption state. (However, the processor and cache are powered off, the chipset is powered on), S3 is in a standby state, S4 is in a dormant state, and S5 is powered off by software. Here, S0 is referred to as a normal operation state, and S1 to S5 are referred to as an energy saving mode (power saving state). The stage of the energy saving mode (S1 to S5) when an event occurs can be set by the user.

  The camera module 6 is connected to the USB interface 18, and includes a lens 31 that forms an image of subject light, an image sensor 32 such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor) sensor, and an image sensor 32. A USB controller 34 for controlling data communication between the USB interface 18 and a DSP 33 having a driver, an A / D converter, and a signal processing circuit, and for reading / writing data in the flash memory 35; And a flash memory 35 for storing information on missing pixels detected in the missing pixel inspection mode.

  The CPU 11 controls the camera module 6 by executing the camera application 14c. Hereinafter, functions realized by the CPU 11 executing the program will be described with the program as an operation subject. FIG. 3 is a diagram illustrating an example of an operation / monitor screen of the camera module 6 displayed on the liquid crystal display 5. The camera application 14 c displays the operation / monitor screen 40 of the camera module 6 on the LCD panel 5 b of the liquid crystal display 5 in response to a user operation of the input unit 4. The operation / monitor screen 40 includes a screen unit 41 and various buttons (a menu button 41 for displaying a menu screen, a release button 42 for giving an instruction to store a captured image in the memory 13, a menu item selection operation (cursor movement) Operation) and a cross button 43 or the like for inputting instructions such as frame advance / reverse of the reproduced image. The screen unit 41 has a menu screen and a camera module 6 for selecting an operation mode (monitoring mode, playback mode), image quality mode (maximum pixel number mode (mode using all effective pixels), low pixel number mode), and the like. The captured image and the image (reproduced image) stored in the HDD 14 are displayed. The camera application 14 c controls the camera module 6 in accordance with a user operation on the operation / monitor screen 40.

  The operation of the camera module 6 will be described. When an imaging instruction is input from the camera application 14c to the camera module 6 (DSP 33), in the camera module 6, incident light from the subject that has passed through the lens 31 enters the imaging element 32 and is imaged. The The subject image formed on the imaging surface of the image sensor 32 is converted by the image sensor 32 into signal charges having an amount corresponding to the amount of incident light. The signal charges accumulated in the image pickup device in this manner are read out to the transfer path by the read pulse applied from the driver circuit of the DSP 33, and are sequentially output to the DSP 33 as image signals corresponding to the signal charges.

  In the DSP 33, after the image signal is converted into image data which is a digital image signal by an A / D converter (not shown), various signal processing (missing pixel correction processing, white balance adjustment processing, color conversion processing, etc.) is performed. Applied. Here, in the missing pixel correction process, the DSP 33 refers to the missing pixel information of the image sensor 32 stored in the flash memory 35 and uses the data of the surrounding pixels as the missing pixel data in the captured image data. To correct (complement).

  The image data that has been subjected to signal processing by the DSP 33 is converted into image data in the USB format by the USB controller 34 and then stored in the memory 13. The image data stored in the memory 13 is transferred to the graphics adapter 16 and displayed on the operation / monitor screen 40 (see FIG. 3) of the liquid crystal display 15. When the shutter button 43 is operated, the camera application 14 c stores the captured image data in the HDD 14.

  Next, the operation of the missing pixel inspection mode executed by the camera application 14c will be described with reference to the flowchart of FIG. FIG. 4 is a flowchart for explaining the operation in the missing pixel inspection mode. In the figure, when the closed state of the display-side housing 3 is detected by the lid sensor 20 (“Yes” in step S1), a closing detection signal is notified to the camera application 14c. The camera application 14c determines whether a condition for executing the missing pixel inspection mode is satisfied (step S2). Here, the condition for executing the missing pixel inspection mode is, for example, a case where a predetermined time has elapsed since the previous execution of the missing pixel inspection mode, or a case where the number of times of opening and closing the display-side housing 3 is a predetermined number or more. Can do.

  If the conditions for executing the missing pixel inspection mode are not satisfied (“No” in step S2), the camera application 14c notifies the BIOS 12a of permission to shift to the energy saving mode (step S15), and the BIOS 12a is set. The process which transfers to the energy saving mode currently performed is performed (step S16).

  When the condition for executing the missing pixel inspection mode is satisfied (“Yes” in step S2), the camera application 14c notifies the embedded controller 18 of the backlight OFF, and in response to this, the embedded application The controller 18 causes the graphics adapter 16 to turn off the backlight 5d (step S3). Next, the camera application 14c notifies the camera module 6 (DSP 33) of an execution instruction for the missing pixel inspection mode, and executes the missing pixel inspection mode.

  The camera module 6 turns off the maximum resolution and missing pixel correction function (step S4), performs imaging, and stores the captured image data in the memory 13 (step S5). The image data captured here is an all-black image because the display-side casing 3 is closed and the backlight 5d is turned off. The camera application 14c reads the previous coordinate data of the missing pixel from the flash memory 35 and stores it in the memory 13 (step S6).

  The camera application 14c scans all the pixels of the image data stored in the memory 13, and determines whether each pixel is a missing pixel. Specifically, the camera application 14c first determines whether or not the luminance value of the first pixel ≧ threshold value th1 (step S7). When the pixel brightness value ≧ threshold value th1 is not satisfied (“No” in step S7), the camera application 14c proceeds to step S11. On the other hand, when the pixel brightness value ≧ threshold value th1 is satisfied (“Yes” in step S7) ]), The coordinates are written in the memory 13 with the pixel as a missing pixel (step S8). Next, with reference to the coordinate data of the previous missing pixel, it is determined whether or not the pixel determined to be a missing pixel this time is also determined to be a missing pixel last time (step S9). If the pixel determined to be a missing pixel this time has also been determined to be a missing pixel last time (“Yes” in step S9), the process proceeds to step S11, while the pixel determined to be a missing pixel this time is a previous pixel that is a missing pixel. Is not determined (“No” in step S9), the new missing pixel counter value N is incremented by “1” (step S10), and the process proceeds to step S11.

  In step S11, the camera application 14c determines whether all the pixels have been checked. If all the pixels have not been checked ("No" in step S11), the coordinates of the determination target pixel are changed. (Step S12), the process returns to Step S7, the missing pixel is determined for the next pixel, and the same process is repeated until all the pixels are completed (Steps S7 to S11). On the other hand, when all the pixels are checked (“Yes” in step S11), it is determined whether or not the new missing pixel counter value N ≧ the threshold th2 (step S13).

  Here, the new missing pixel counter value N ≧ threshold value th2 is determined when the new missing pixel counter value N is large, when the display-side housing 3 is semi-closed, or the backlight 5d is not turned off. As in the case, it is conceivable that light has leaked and the imaging of the all-black image has failed, so such a case is determined as a failure of the missing pixel inspection mode. Here, the threshold th2 can be set to about 10 to 50, for example.

  If the new missing pixel counter value N ≧ threshold th2 (“Yes” in step S13), the camera application 14c determines that the missing pixel inspection mode has failed and proceeds to step S15. On the other hand, if the new missing pixel counter value N ≧ threshold value th2 is not satisfied (“No” in step S13), it is determined that the missing pixel inspection mode is successful, and the coordinate data of the previous missing image in the flash memory 35 is stored in the memory 13. The stored coordinate data of the missing pixel is rewritten (step S14), and the process proceeds to step S15. Thereby, the previous coordinate data stored in the flash memory 35 is discarded, the coordinate data of the current missing pixel is written, and the latest coordinate data of the missing pixel is used for the missing pixel correction. The current missing pixel coordinate data stored in the memory 13 is deleted.

  In step S15, when the missing pixel inspection mode ends, the camera application 14c notifies the BIOS 12a of permission to shift to the energy saving mode, and the BIOS 12a performs a process of shifting to the set energy saving mode (step S16).

  In the first embodiment, the camera application 14c executes the missing pixel inspection mode when the execution condition for the missing pixel inspection mode is satisfied. However, in the second embodiment, in response to a user instruction, the missing pixel inspection mode is executed. A case where the mode is executed will be described. FIG. 5 is a diagram illustrating an example of the operation / monitor screen 40 of the camera module 6 according to the second embodiment. As shown in FIG. 5A, the camera application 14c displays an inspection button 45 on the operation / monitor screen 40 for the user to instruct execution of the missing pixel inspection mode. When the inspection button 45 is pressed, the camera application 14c displays a message “Please close the notebook PC” on the operation / monitor screen 40 as shown in FIG. In response to this, when the user closes the display-side casing 3, the camera application 14c executes the missing pixel inspection mode.

  FIG. 6 is a flowchart for explaining the operation of the missing pixel inspection mode according to the second embodiment. In FIG. 6, steps that perform the same processing as in FIG. 4 are given the same step numbers, and descriptions thereof are omitted.

  In FIG. 6, when the examination button 45 (see FIG. 5) on the operation / monitor screen 40 is selected (“Yes” in step S21), the camera application 14c closes the notebook PC on the operation / monitor screen 40. Please display "message (see FIG. 5B) (step S22). In response to this, when the user closes the display-side housing 3 and the lid sensor 20 detects the closed state of the display-side housing 3 (“Yes” in step S23), the close detection signal is sent to the camera application 14c. Be notified. When the camera application 14c receives the closing detection signal, the camera application 14c notifies the embedded controller 18 of an instruction to turn off the backlight. In response to this, the embedded controller 18 turns off the backlight 5d in the graphics adapter 16 (step S3). ). The following processing is the same as steps S4 to S16 in FIG.

  As described above, according to the present embodiment, the main body side housing 2 and the liquid crystal display 5 and the camera module 6 are provided on the surface of the main body side housing 2 that can be opened and closed and is closed. In the notebook PC 1 having the display-side housing 3, the lid sensor 20 detects the closed state of the display-side housing 3, and the camera application 14 c is in the closed state of the display-side housing 3 by the lid sensor 20. Is detected, the missing pixel inspection mode is executed. In the missing pixel inspection mode, the camera module 6 performs imaging, and each pixel of the captured image data is scanned to determine whether there is a missing pixel. Since the information of the pixel determined to be a missing pixel is stored in the flash memory 35, the inspection of the image sensor 32 mounted on the notebook PC 1 is reduced. It can be executed under stringent configuration. In addition, even in a low-cost configuration without an aperture or a mechanical shutter, it is possible to inspect missing pixels after product shipment.

  In addition, in the normal imaging, the camera module 6 refers to the missing pixel information stored in the flash memory 35 and corrects the missing pixel data in the captured image data. Data can be obtained.

  In addition, since the camera module 6 performs imaging using all effective pixels (maximum pixel number mode) in the missing pixel inspection mode and does not correct the missing pixel data of the captured image data, It is possible to detect missing pixels. In addition, white scratches that occur after product shipment may disappear and occur over time, and even if the missing pixels are caused by dust, the missing pixels become normal pixels as the dust moves. Therefore, it is possible to accurately determine the current missing pixel by setting all the pixels as inspection targets.

  Further, the camera application 14c determines whether or not the new missing pixel counter value N obtained by counting the number of new missing pixels is equal to or greater than the threshold th2, and if the new missing pixel counter value N is equal to or greater than the threshold th2. Since it is determined that the missing pixel inspection mode is unsuccessful and information on the missing pixel at this time is not stored in the flash memory 35, the display-side housing 3 is not closed or the backlight 5d is not turned off. As in the case, it is possible to eliminate the inspection result when light is leaked and imaging of an all-black image fails.

  The camera application 14c executes the missing pixel inspection mode when the execution condition of the missing pixel inspection mode is satisfied or according to the user instruction. It is possible to execute the missing pixel inspection mode in accordance with a user instruction.

  In the first and second embodiments, the notebook type PC is exemplified as the portable information processing apparatus according to the present invention. However, the portable information processing apparatus according to the present invention is not limited to the notebook type PC. The display side housing can be opened and closed with respect to the main body side housing, and the display and the camera may be provided on the surface on the closed side of the display side housing. For example, a mobile phone, PDA, digital The present invention can be applied to various portable information processing devices such as cameras.

  The portable information processing apparatus, the camera inspection method, and the computer-executable program according to the present invention are useful when executing inspection of a camera mounted on the portable information processing apparatus with a low-cost configuration.

1 is a schematic external view of a notebook PC to which a portable information processing apparatus according to an embodiment of the present invention is applied. 1 is a schematic external view of a notebook PC to which a portable information processing apparatus according to an embodiment of the present invention is applied. FIG. 2 is a diagram illustrating a schematic hardware configuration example of the notebook PC of FIG. 1. It is a figure which shows an example of the operation and monitor screen which concerns on Example 1 which a camera application displays. 6 is a flowchart for explaining an operation in a missing pixel inspection mode according to the first embodiment. It is a figure which shows an example of the operation and monitor screen which concerns on Example 2 which a camera application displays. 12 is a flowchart for explaining an operation in a missing pixel inspection mode according to the second embodiment.

Explanation of symbols

1 Notebook PC
2 Main body side housing 3 Display side housing 4 Input section 5 Liquid crystal display 5a LCD controller 5b LCD panel 5c Backlight controller 5d Backlight 6 Camera module 7a, 7b Connecting section (hinge section)
11 CPU
12 ROM
12a BIOS
13 Memory 14 HDD (Hard Disk)
14a OS
14b Driver 14c Camera application 16 Graphics adapter 17 Video port 18 USB interface 19 Embedded controller 20 Lid sensor 21 Power supply circuit 31 Lens 32 Image sensor 33 DSP
34 USB controller 35 Flash memory

Claims (7)

In a portable information processing apparatus comprising: a main body side housing; and a display side housing that is provided so as to be openable and closable with respect to the main body side housing and has a display and a camera on a surface to be closed.
Detecting means for detecting a closed state of the display-side housing;
A missing pixel inspection mode executing means for executing a missing pixel inspection mode for inspecting a missing pixel of the image sensor of the camera when the detection means detects a closed state of the display-side housing;
With
The missing pixel inspection mode execution means includes:
An imaging instruction unit that causes the camera to perform imaging for a missing pixel inspection when the detection unit detects a closed state of the display-side casing;
A missing pixel determination unit that scans each pixel of image data captured in accordance with an instruction of the imaging instruction unit and determines a missing pixel;
Missing pixel information storage control means for storing information on missing pixels determined as missing pixels by the missing pixel judgment means in storage means;
Including
The missing pixel determining means includes
Counting means for counting the total number of the determined missing pixels;
First determination means for determining whether or not the total number of missing pixels counted by the counting means is greater than or equal to a threshold;
A second determination unit that determines that the detection of the missing pixel is unsuccessful when the number of missing pixels is equal to or greater than a threshold value in the first determination unit;
Including
The missing pixel information storage control unit stores information on the missing pixel determined as the missing pixel in the storage unit when the second determining unit determines that the detection of the missing pixel is unsuccessful. A portable information processing apparatus characterized by not. 2. The portable information according to claim 1, wherein, in normal imaging, the camera corrects the missing pixel data of the captured image data by referring to the missing pixel information stored in the storage unit. 3. Processing equipment. The said camera does not correct | amend the data of the missing pixel of the imaged image data while imaging using all the effective pixels in the said missing pixel inspection mode. Mobile information processing device. The missing pixel inspection mode executing unit executes the missing pixel inspection mode after turning off the display when the detecting unit detects a closed state of the display-side casing. The portable information processing apparatus according to any one of claims 1 to 3. 5. The missing pixel inspection mode is executed when the missing pixel inspection mode execution condition is satisfied or according to a user instruction. The portable information processing apparatus according to claim 1. In a camera inspection method for a portable information processing apparatus, comprising: a main body side housing; and a display side housing that is provided so as to be openable and closable with respect to the main body side housing and has a display and a camera on a surface to be closed ,
A detection step of detecting a closed state of the display-side housing;
A missing pixel inspection mode execution step for executing a missing pixel inspection mode for inspecting a missing pixel of the image sensor of the camera when the closed state of the display-side housing is detected in the detection step;
Have
The missing pixel inspection mode execution step includes:
An imaging instruction step for causing the camera to perform imaging for a missing pixel inspection when the closed state of the display-side housing is detected in the detection step;
A missing pixel determination step of scanning each pixel of image data captured in accordance with an instruction of the imaging instruction step and determining a missing pixel;
A missing pixel information storage step of storing information on pixels determined to be missing pixels in the missing pixel determination step in a storage unit;
Including
The missing pixel determination step includes
A counting step of counting the total number of the determined missing pixels;
A first determination step of determining whether or not the total number of missing pixels counted in the counting step is equal to or greater than a threshold;
A second determination step of determining that the detection of a missing pixel is a failure when the number of missing pixels is equal to or greater than a threshold in the first determination step;
Including
In the missing pixel information storing step, when it is determined that the detection of the missing pixel is unsuccessful in the second determining step, information on the missing pixel determined as the missing pixel is not stored in the storage unit. A camera information inspection method for a portable information processing apparatus. A program mounted on a portable information processing apparatus that includes a main body side housing and a display side housing that is provided so as to be openable and closable with respect to the main body side housing and has a display and a camera on the surface to be closed In
A detection step of detecting a closed state of the display-side housing;
A missing pixel inspection mode execution step for executing a missing pixel inspection mode for inspecting a missing pixel of the image sensor of the camera when the closed state of the display-side housing is detected in the detection step;
To the computer,
The missing pixel inspection mode execution step includes:
An imaging instruction step for causing the camera to perform imaging for a missing pixel inspection when the closed state of the display-side housing is detected in the detection step;
A missing pixel determination step of scanning each pixel of image data captured in accordance with an instruction of the imaging instruction step and determining a missing pixel;
A missing pixel information storage step of storing information on pixels determined to be missing pixels in the missing pixel determination step in a storage unit;
Including
The missing pixel determination step includes
A counting step of counting the total number of the determined missing pixels;
A first determination step of determining whether or not the total number of missing pixels counted in the counting step is equal to or greater than a threshold;
A second determination step of determining that the detection of a missing pixel is a failure when the number of missing pixels is equal to or greater than a threshold in the first determination step;
Including
In the missing pixel information storing step, when it is determined that the detection of the missing pixel is unsuccessful in the second determining step, information on the missing pixel determined as the missing pixel is not stored in the storage unit. A computer-executable program characterized by the above.

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