JPH0460384B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing apparatus that creates additional information while observing an image on a recording medium such as a microfilm.

[Prior art]

Images recorded on microfilm are stable and
Can be used as permanent image memory. When viewing and observing microfilmed information, a request often arises to write notes on information related to the information, but since it is microfilm, it is extremely difficult to make corrections. If this were to be done, a part of the image would be deleted by scanning a minute spot with a large amount of energy, such as a fine needle tip or a laser beam. However, all of these methods damage the microfilm. It is not possible to make partial modifications without causing damage. Therefore, by sharing,
This method has a major drawback in that information that must be stored permanently can be personally modified.

As an alternative method, a conventional method has been to create a hard copy of the microfilm image and write notes on it and file them separately as derived information. This method is inconvenient because hard copying, memo writing, filing, etc. are inconsistent.

[Purpose of the invention]

The present invention has been made in view of the prior art, and an object of the present invention is to provide an image processing apparatus that can automatically process memo information regarding the screen while observing an image on a recording medium such as a microfilm.

[Structure of the invention]

The configuration of the present invention that achieves the above object includes means for projecting an image on a recording medium onto a screen, and photoelectric conversion of the written image so that it can be observed by being combined with the projected image on the screen. An image processing apparatus characterized by comprising a reading means.

〔Example〕

FIG. 1 is a schematic diagram of an embodiment of an image processing apparatus to which the present invention is applied. In the figure, F is a micro film, 1 is a light source, 2 is a projection lens, 3 is an optical path switching mirror, 4 is a mirror, 5 is a screen, 6 is a movable transparent film, and 7 is a movable transparent film driving source. Further, 8 is a photoelectric conversion sensor, 9 is a signal amplification circuit, 10 is an analog-to-digital conversion circuit, 11 is a memory circuit, 15 is a control circuit, 16 is a circuit that generates a search address signal, 17 is a search device, 18
is a read command signal generation circuit.

FIG. 2 is a detailed perspective view of the main parts of the apparatus shown in FIG. 1. The light emitted from the light source 1 is passed through the condensing lens 20.
The image on the film F is illuminated through a mirror 21 and a condenser lens 22. When the switching mirror 3 is in the position indicated by the solid line, the lens 2, mirror 23, 3,
Through mirrors 25 and 26, it passes through a solid line indicator path b,
Image B on the microfilm is enlarged and projected onto the screen 5. A movable transparent film 6 is arranged in close contact with the front surface of the screen 5. Images can be written on this transparent film 6 with a pen 28. The transparent film 6 is a motor (not shown)
It can be moved in the direction of arrow X by being held and conveyed by a capstan roller 29a and a pinch roller 29b that are connected to each other. The image written on the transparent film 10 is illuminated by a rod-shaped light source 30, and is converted into an image electrical signal and read by a line scanning type reading sensor 8.

When the switching mirror 3 is in the position indicated by the chain line, the image on the microfilm F passes through the chain line optical path a by the projection lens 2 and is focused on the photoreceptor 13 (see FIG. 1), so that it is in a printed state.

[Effect]

In such an image processing apparatus, if the user wishes to leave a memo regarding the image on the microfilm F, the user sets the mirror 3 to the solid line position and operates a keyboard (not shown) to select the desired microfilm image. Then, a search address signal is input from the circuit 16 to the control circuit 15, and the control circuit 15 issues an operation command to the search device 17. When a desired microfilm image is retrieved by the retrieval device 17,
Image B is projected onto the screen 5. The projected image B
While observing through the transparent film 6, an additional and corrected image A is written on the transparent film 6 with a pen 28 so that it is combined with the projected image B.

A command to read this image A is given by operating the keyboard.
Then, a read command signal is input from the circuit 18 to the control circuit 15. A drive command is issued from the control circuit 15 to the drive source 7. The motor is rotated by the drive source 7, and the transparent film 6 is moved in the direction of arrow X by the pair of rollers 29a and 29b. Then the sensor 8 operates and the image A
are read sequentially. At this time, the driving speed of the transparent film 6 and the scanning speed of the reading sensor 8 are controlled by the control circuit 15.
Synchronization is achieved by The signal of image A is the circuit 9
is amplified and digitally converted by the A/D circuit 10. On the other hand, the control circuit 15 outputs a signal to the memory circuit 11 specifying the address corresponding to the searched microfilm image, and the digital signal of the image A is stored at that address.

The additional information stored in the image A can be recalled as needed, such as when searching for the same microfilm again, and can be displayed on a device such as a cathode ray tube (CRT) display or liquid crystal display, or printed in hard copy by digital copying. Obtaining or sending is optional.

[Modified example]

FIG. 3 shows an example in which the screen and the transparent film for writing are used together. The image A is written on the screen 33 with the pen 28 while observing the projected image B (shown by the chain line). When that is finished, move the screen 33 and move the sensor 8
Only the written image A can be read sequentially.

FIG. 4 shows another embodiment of the written image reading sensor. The written image on the transparent film 6 is illuminated with light from the rod-shaped light source 30 passing through a Fresnel lens 35.
An image is formed on a charge couple device (CCD) line sensor 37 by a reduction optical system 36 .

〔effect〕

As explained above, according to the image processing device of the present invention, while observing a microfilm image,
This is convenient because it allows arbitrary additions to the image without damaging it at all, and the added image information can be treated as independent information.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an image processing apparatus to which the present invention is applied, FIG. 2 is a detailed perspective view of its main parts, and FIGS. 3 and 4.
The figure is a partial view of another embodiment. F is a micro film, 2 is a projection lens, 3 is an optical path switching mirror, 5 is a screen, 6 is a movable transparent film, 8 is a photoelectric conversion sensor, 11 is a memory circuit, and 15 is a control circuit.

Claims (1)

[Claims] 1. It is characterized by comprising means for projecting an image on a recording medium onto a screen, and means for photoelectrically converting and reading the written image so that it can be observed by being combined with the projected image on the screen. Image processing device.