JPH0666971B2 - 3D printing device - Google Patents

Description

The present invention relates to a stereoscopic printing apparatus that creates a stereo pair from stereoscopic video signals.

<Prior Art> Conventionally, a stereoscopic printing apparatus of this type receives a stereoscopic video signal from a recording / reproducing apparatus such as a VTR, and uses the functions of the recording / reproducing apparatus such as pause and frame advance to freeze the screen. However, there is one that prints the still image and creates a stereo pair.

By the way, a stereo pair is used for stereoscopic viewing of a stereoscopic image. As shown in FIG. 7, left-eye and right-eye photographs, pictures, etc. are arranged horizontally to the left and right respectively. It is a thing.

To stereoscopically view this stereo pair, hold the stereo pair horizontally with your hands about 25 cm in front of your eyes, relax your eyes as if you are looking at a distance, and use the left eye to draw the left picture and the right eye to the right picture. When you look at the picture, the left and right images come closer to each other and you can see them in stereo. This is called naked-eye stereoscopic vision. Also, stereoscopic viewing can be easily performed by using a stereoscopic mirror.

In this way, the stereo pair can be easily viewed stereoscopically without the need for tools, so it is used in a wide range of fields such as presentations at academic conferences, creation of topographic maps, and medical fields.

<Problems to be Solved by the Invention> By the way, as a video signal for creating this stereo pair, a stereoscopic video signal in which one frame is composed of a left-eye video field and a right-eye video field is used. However, in the above-mentioned conventional stereoscopic printing apparatus, since a still image is printed, a recording / playback apparatus having a field still function for alternately displaying the left image field and the right image field in a still state is provided. Was needed. In addition, there is a drawback that it is difficult to distinguish whether the paused image is a left image or a right image, and the left and right images can only be discriminated by the operator.

Therefore, an object of the present invention is to provide a stereoscopic printing apparatus that does not require an operator to distinguish between left and right images and does not require a recording / playback apparatus having a field stillness function.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention receives a stereoscopic video signal in which one frame is composed of a video field for the left eye and a video field for the right eye, and In a stereoscopic printing apparatus in which an image for the eye and the image for the right eye are separately printed by a printer, a frame counting means for counting frames of the stereoscopic image signal, and a field of the stereoscopic image signal for the left eye Field determining means for determining whether the field is for the right eye or a field for the right eye, and a plurality of frame areas including a left eye field area for storing the left eye field and a right eye field area for storing the right eye field. Field memory with
In response to the output from the frame counting means and the output from the field determining means, the stereoscopic video signal is sequentially stored for each frame in a left eye field area and a right eye field area of a predetermined frame area of the field memory. Video signal storage means, and when printing a pair of left and right video, specify the frame of the video to be printed in frame units, and when printing consecutive video, select the first frame and the last frame of the printing area. When printing a pair of left and right images on the basis of the print image designating means for designating on a frame-by-frame basis and the signals from the print image designating means, the video signal of the frame of the designated video is read from the field memory. When outputting to the above printer and printing continuous video, specify the specified area. Control means for sequentially reading out the video signals of the frames from the first frame to the last frame from the field memory in frame units and outputting them to the printer, and the image interval for adjusting the interval between the left and right images output to the printer. It is characterized by having adjusting means.

Further, the present invention is a video display means for simultaneously displaying a plurality of videos stored in the field memory,
Video output means for outputting a plurality of videos displayed on the video display means to the printer can be provided.

Further, according to the present invention, an image designating unit for designating an image to be output to a printer among a plurality of images displayed on the image display unit, and an image designated by the image designating unit are sequentially output to the printer. Video output means for

Further, the present invention can be provided with an information providing means for displaying information regarding the printing on the display means while the image is printed by the printer.

<Operation> The frame counting means counts the frames of the stereoscopic video signal in which one frame consists of the field of the video for the left eye and the field of the video for the right eye, and whether the field of the stereoscopic video signal is the field for the left eye. The field determination means determines whether the field is for the right eye. The video signal storage means outputs the output from the frame counting means,
In response to the output from the field determination means, the video signal is sequentially stored for each frame in the left eye field area and the right eye field area of a predetermined frame area of the field memory. On the other hand, when the pair of left and right images is printed, the print image designating unit designates the frames of the image to be printed on a frame-by-frame basis, and when printing consecutive images, the first frame and the last frame of the area to be printed. Is specified in frame units. Then, when the control means prints a pair of left and right images on the basis of the signal from the print image designating means, the image signals of the frames of the designated images are read out from the field memory at the same time as the left and right sides or separately. When outputting continuous video to the above printer, the video signals of the frames from the first frame to the last frame of the specified area are sequentially read from the field memory in frame units and output to the printer. Or, of the video signal of the frame of the specified area,
After the video signal of one of the left and right fields is sequentially read from the field memory and output to the printer, the video signal of the other of the left and right fields is sequentially read from the field memory and output to the printer. Further, the image interval adjusting means adjusts the interval between the left and right images output to the printer.

Further, the video display means simultaneously displays a plurality of videos stored in the field memory, and the video output is
The plurality of images displayed on the image display means are output to the printer simultaneously on the left and right sides or separately on the left and right sides.

Further, the video designating means designates a video to be output to the printer among the plurality of videos displayed on the video display means, and the video output means outputs the video designated by the video designating means to the left and right simultaneously or to the left and right. Separately and successively output to the printer.

Further, the information providing means displays the information on the print on the display means while the image is printed by the printer.

Therefore, it is not necessary for the operator to determine the left and right images by keeping the field still, and anyone can easily make a stereo pair for each specified image without making a mistake on the left and right, and also for the images in the specified range. You can make consecutive stereo pairs. You can also create stereo pairs at the intervals that are most visible. In addition, since a plurality of images displayed on one screen are printed out at once or successively, it can be used for various purposes. Also, since information about printing is displayed,
It is convenient for operation.

<Example> Hereinafter, the present invention will be described in detail with reference to illustrated examples.

FIG. 1 is a block diagram showing the circuit configuration of an embodiment of the present invention.

In FIG. 1, reference numeral 1 is a VTR for recording / reproducing a stereoscopic video signal in which one frame is composed of a left eye video field and a right eye video field, and 2 is a stereoscopic video signal. It is a monitor that displays the video. Further, 3 is a frame counting circuit for counting the frames of the stereoscopic video signal output from the VTR 1 and 4
Is a field determination circuit for determining whether the video of the stereoscopic video signal is a video for the left eye or a video for the right eye, 5 is an A / D converter for converting the stereoscopic video signal into a digital signal, 6 Is a field memory having a plurality of frame areas including a left-eye field area for storing a left-eye field of the stereoscopic video signal converted into the digital signal and a right-eye field area for storing a right-eye field. Is. Further, 7 is a control unit and 8 is an operation unit. The control unit 7 is composed of a CPU 71, a program ROM 72 and a work RAM 73. The control unit 7 controls the VTR 1 in response to an instruction from the operation unit 8 and also outputs information from the frame count circuit 3 and the field determination circuit 4. In addition, the writing / reading control is performed for each frame for the left eye and each field for the right eye of the field memory 6. Further, 9 is a D / A converter, 10 is a printer interface, and 11 is a printer.

FIG. 2 is a diagram showing an example of a stereoscopic video signal input to the field memory 6, a state in which the stereoscopic video signal is stored in the field memory 6, and an example of the stereoscopic video signal output from the field memory 6. FIG. 3 is a flow chart showing the operation of this embodiment.

The operation of this embodiment will be described below with reference to the flowchart of FIG.

First, the operation unit 8 inputs an instruction to create only one stereo pair or to create a stereo pair of consecutive scenes. Then, VT the videotape containing the stereoscopic video signal including the scene where you want to create a stereo pair.
Play on R1 and watch on monitor 2. The video signal output from the VTR 1 is A / D converted by the A / D converter 5,
As shown in FIG. 2, all the data from memory-1 to memory-n are recorded in the left and right field memories 6. The contents recorded in the field memory 6 are D /
The frame is displayed and confirmed on the monitor 2 via the A converter 8. Next, after stopping the VTR, the following operation is performed in accordance with the instruction input from the operation unit 8.

When creating one stereo pair When the changeover switch of the field memory 6 is operated from the operation unit 8 to call up and specify a scene for which a stereo pair is to be created, the information representing the frame of the scene is stored in the RAM 7
3 is stored. Then, the control unit 7 reads the frame of the called scene from the field memory 6 based on the above information and outputs the frame to the printer 11 via the D / A converter 9 or the printer interface 10, and simultaneously, right and left, Or print out the left and right separately.

Similar to the case of creating a stereo pair of continuous scenes, if you operate the changeover switch of the field memory 6 from the operation unit 8 and specify the start and end of continuous scenes while checking on the monitor 2, the start and end frames are specified. And stored in the RAM 73. And the CPU 71
Reads the frames from the first frame to the last frame sequentially from the field memory separately for the left eye field and the right eye field, and the printer 11 via the D / A converter 9 or the printer interface 10.
Output to. Then, as shown in FIG. 2, the screens in the designated range are sequentially printed out simultaneously on the left and right, or only the left screen in the designated range is sequentially printed out, and then only the right screen is sequentially printed out. By setting the printout order on the operation unit 8, the right screen can be set first.

When a video is input from the VTR 1 to the field memory 6, if the continuous scenes are long and the field memory 6 cannot be fully filled, the VTR 1 is temporarily stopped and rewound. Then, after the printout is completed, reproduction is performed, the frames next to the last frame captured in the field memory 6 last time are sequentially captured in the field memory 6, and then the printout is performed. Thus, VT
R1 control, image capture to field memory 6,
By repeating the printout to the printer 11, a stereo pair can be created even when a continuous scene is long.

Further, in order to stereoscopically view the stereo pair, it is preferable that there are left and right images in the eye distance, but the distance is different for each person. Therefore, in order to correct this, the interval is adjusted so that the left and right images from the operation unit 8 are optimal, and the stereo pair can be created at the most visible interval.

Further, as shown in FIG. 4, a plurality of screens are displayed on the monitor 2 at the same time, and the plurality of displayed screens can be printed out simultaneously on the left and right sides or separately on the left and right sides. In this case, the number of screens can be divided into an integer squared. Although FIG. 4 shows the case where the image is divided into four, it can also be divided into nine as shown in FIG. In this case, the contents of memory 1 to memory 9 are simultaneously displayed on the first screen, and the contents of memory 10 to memory 18 are displayed on the next screen.
The contents up to are displayed at the same time. Further, as shown in FIG. 6, of the plurality of screens displayed on the monitor 2, the screens to be printed out are designated in the order in which they are to be output, and the designated screens are printed out simultaneously in the left and right directions or separately in the left and right directions. I am able to do that.

Further, it is possible to display the information about the print on the monitor 2 during the printout. For example, it is possible to display information such as what position in the entire memory the screen currently being printed, how many sheets are currently printed, and how many more sheets are to be printed.

As described above, when one frame stores a stereoscopic video signal including a left-eye video field and a right-eye video field in the field memory 6 on a frame-by-frame basis and prints a pair of left and right videos, When the video signals of the frames of the specified video are read from the field memory 6 at the same time on the left and right sides or separately on the left and right sides and output to the printer 11 to print continuous video, from the first frame of the specified area, The frame video signals up to the last frame are sequentially read from the field memory 6 in frame units and output to the printer 11, or the video signal of either the left or right field among the video signals of the frames in the designated area. Are sequentially read from the field memory and output to the printer. Since the field video signals are read out sequentially from the field memory and output to the printer, it is not necessary for the operator to stop the field to determine the left and right images, and therefore, it is easy for anyone to make a right or left mistake. In addition, a stereo pair can be created for each specified image, and a stereo pair of images in a specified range can be continuously created.

<Effects of the Invention> As is apparent from the above, according to the three-dimensional printing apparatus of the present invention, it is not necessary for the operator to stop the field to discriminate the left and right images, and therefore, anyone can easily make a right or left mistake. , A stereo pair can be created for each specified image, and a stereo pair of images in a specified range can be continuously created.

In addition, it is possible to adjust the interval between the left and right images output to the printer, and it is possible to create a stereo pair at the most visible interval.

Also, by displaying a plurality of consecutive screens on the video display means,
Since the plurality of screens are printed out at one time, or only the designated screens among the plurality of screens are sequentially printed out successively, it can be used for various purposes.

Further, since the information about the printing is displayed on the display means when the image is printed by the printer, it is convenient in operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a circuit configuration of an embodiment of the present invention, and FIG. 2 is a stereoscopic video signal inputted to a field memory in the above embodiment, and this stereoscopic video signal is the above-mentioned. FIG. 3 is a diagram showing an example of a stereoscopic video signal output from the field memory and a state of being stored in the field memory. FIG. 3 is a flow chart showing the operation of the above-mentioned embodiment, and FIGS. 4, 5, and 6 are FIG. 7 is a diagram for explaining screen division in the above embodiment, and FIG. 7 is a diagram showing an example of a stereo pair. 1 ... VTR, 2 ... monitor, 3 ... frame counting circuit, 4 ... field determination circuit, 6 ... field memory, 7 ... control section, 8 ... operation section, 11 ... printer.

Claims (4)

[Claims] 1. A printer for receiving a left-eye image and a right-eye image separately by receiving a stereoscopic image signal in which one frame includes a left-eye image field and a right-eye image field. In a three-dimensional printing apparatus configured to perform printing by means of a frame counting means for counting the frames of the three-dimensional video signal, and a field determination means for determining whether the field of the three-dimensional video signal is a left-eye field or a right-eye field. And a field memory having a plurality of frame areas including a left-eye field area for storing a left-eye field and a right-eye field area for storing a right-eye field, and an output from the frame counting means. In response to the output from the field determination means, the stereoscopic video signal is sequentially stored for each frame in the field memory. Video signal storage means for storing in the left eye field area and right eye field area of the constant frame area, and when printing a pair of left and right images, specify the frame of the image to be printed in frame units and When printing, when printing a pair of left and right images based on the print image designating means for designating the first frame and the last frame of the area to be printed in frame units, and the signal from the print image designating means, , When the video signal of the specified video frame is read from the field memory and output to the printer to print continuous video, the video of the frame from the first frame to the last frame of the specified area The signals are sequentially read from the field memory in frame units and output to the printer. And control means, three-dimensional printing apparatus characterized by comprising an image distance adjusting means for adjusting the distance between the left and right images to be output to the printer. 2. A three-dimensional printing apparatus according to claim 1, wherein a video display means for simultaneously displaying a plurality of videos continuously stored in the field memory and a video display means for displaying the video are displayed on the video display means. A stereoscopic printing apparatus comprising: a video output unit that outputs a plurality of videos to the printer. 3. A stereoscopic printing apparatus according to claim 2, wherein a video designating means for designating a video to be output to a printer among a plurality of videos displayed on the video display means, and the video designating means. And a video output means for sequentially and sequentially outputting the video specified by the printer to the printer. 4. The three-dimensional printing apparatus according to claim 1, further comprising: information providing means for displaying information on the print on the display means when the image is printed by the printer. 3D printing device.