JP2000222423A - Image retrieval system and retrieval method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an image retrieval system and a retrieval method capable of providing image information by restoring the image information from an image photographed on a photographing medium when the image information is damaged by falsification, erasure, or the like. provide. In an image search system including a recording device for recording image information and search information of the image information, and image search devices for searching an image photographed on a photographing medium, a recording device is provided. When desired image information is acquired from the image information in the storage device, if the image information is erased or falsified, the recording device 1
The search information of the image information is read from the image information 01, the images searched for by the image search devices 102 and 103 on the shooting medium are searched based on the read search information, and the searched image is read as the image information and registered in the recording device 101. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image retrieval system comprising a recording device for recording image information and retrieval information of the image information, and an image retrieval device for retrieving images photographed on a photographing medium, and an image retrieval system comprising It relates to the search method.

[0002]

2. Description of the Related Art Rotary cameras are used to reduce the size of images of objects (documents) such as documents, drawings, bills, checks, stock certificates, etc., and record them on a microfilm or the like. Images recorded on microfilm have excellent storability, high density and evidence ability, but require development after photographing. To instantly search and edit the image after shooting,
An image (electronic file) in which an image of a subject is read and recorded as an electric signal converted by a photoelectric conversion element is superior. For this reason, it has become necessary to use a photographing record on a microfilm or the like together with an electronic file.

[0003] A conventional rotary type camera using both a photographing record and an electronic file feeds a subject to a photographing position and moves the subject and the microfilm while moving the light image by an imaging lens. In addition to forming an image on a surface and taking an image, the optical path is optically divided on the way, guided to an image reading means, electrically read, and recorded on a recording medium such as a magnetic disk.

[0004] Further, a reader printer or the like having an optical mechanism for enlarging and projecting image information recorded on a microfilm or the like on a reduced scale on a reading screen, and a printer mechanism for projecting onto a photoreceptor and outputting a copied image. It is possible to perform operations such as viewing and printing image information in the microfilm using the image forming apparatus described above.

[0005]

However, if the image information of the subject stored by the above-mentioned photographing device is corrupted by falsification, erasure, or the like, the subject is photographed again or stored on a microfilm. There is no choice but to redo the photographing using the obtained image information as a paper medium using a reader printer or the like, which has caused a great deal of trouble for the user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and in a case where image information has been corrupted by falsification, deletion, or the like, the image information is restored from an image photographed on a photographing medium and the image information is restored. It is an object to provide an image search system and a search method thereof that can be provided.

[0007]

In order to achieve the above object, the present invention provides a recording device for recording image information and retrieval information of the image information, and an image retrieval device for retrieving an image photographed on a photographing medium. When obtaining desired image information from the image information in the recording device, if the image information is deleted, falsified, etc., the image retrieval system Reading means for reading information search information, search means for searching for an image taken on the imaging medium based on the search information read by the reading means, reading the image searched by the search means as image information, Registering means for registering in the recording device.

According to another aspect of the present invention, there is provided a recording apparatus for recording image information and retrieval information of the image information, and an image retrieval apparatus for retrieving an image photographed on a photographing medium. In the search method of the image search system, when desired image information is obtained from the image information in the recording device, if the image information is deleted, falsified, or the like, the image information is transmitted from the recording device. A reading step of reading the search information, a search step of searching for an image shot on the shooting medium based on the search information read in the reading step, and reading the image searched in the search step as image information and recording the image. And a registration step of registering in the device.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an external perspective view showing an image retrieval system according to the embodiment. In FIG. 1, reference numeral 101 denotes a recording device which records image information and address information while photographing a subject on a microfilm. Reference numeral 102 denotes a microfilm scanner, which converts image information on the microfilm into an electric signal by an imaging device. 1
Reference numeral 03 denotes a microfilm search device that searches for a microfilm based on frame information added to the image of the roll-shaped microfilm. Reference numerals 104 and 105 denote personal computers, respectively, a microcomputer for system control, an internal memory composed of a RAM and a ROM, an external memory composed of a floppy disk or a cartridge disk, an external communication interface such as a network, and a keyboard. , An input unit such as a pointing device, and a display unit such as a display.
Information exchange with externally connected devices, information arrangement, etc. can be performed.

The recording apparatus 101 is connected to a personal computer 104 via a cable 111 capable of communicating information such as image information, address information, and device control information. Is the personal computer 1 through the cable 111
04. The personal computer 104 organizes the sent image information and address information, and creates a database of the image information and the images photographed on the microfilm. The personal computer 104 and the personal computer 105 are connected by a cable 113 capable of communicating image information, address information, and the like. Address information of an image photographed on a microfilm is transmitted from the personal computer 104 to the personal computer 105.

A personal computer 105 is connected to the microfilm scanner 102 via a cable 112 capable of communicating information such as image information, address information, and device control information. Is connected to the microfilm scanner 102 on the basis of the address information. The microfilm search device 103 searches for an image on the microfilm, converts the image on the microfilm into image information by the microfilm scanner 102, and sends the image information to the personal computer 105.

FIG. 2 is a schematic diagram showing the configuration of a subject transport system of the recording apparatus 101. When the subject S is placed on the sheet feeding table 12 inclined downward, the subject S moves in the direction of arrow a due to weight, and is separated by the sheet feeding roller 13 rotating in the direction of arrow b and the separation roller 14 rotating in the direction of the arrow c. The sheets are separated and sent one by one. A lower belt 17 is wound around the belt rollers 16 and 21, and the tension roller 2
When the lower drive roller 19 rotates, the subject S is conveyed by the lower belt 17.

The idle roller 15 and the guide unit 18 hold the subject S by pressing it against the lower belt 17. An object sensor 10 detects the object S and is used for adjusting the timing of the photographing operation. Then, the subject S is conveyed from the horizontal direction to the vertical direction by the lower belt 17 and passes through the subject guide glass 32. At this time, the subject S is simultaneously illuminated on both sides by the pair of illumination lamps 31. Nip rollers 22 and 23 are provided above and below the guide glass 32, respectively.

Further, an upper belt 28 is stretched between the belt rollers 25 and 27, and an appropriate tension is held by the belt roller 26.
The subject S having passed through the guide glass 32 is conveyed by the rotation of 9. Further, the idle roller 24 presses and holds the subject S against the upper belt 28. The subject S changes the transport path from the vertical direction to the horizontal direction by the upper belt 28, advances in the direction of arrow d, and is discharged to the stacker 30.

The subject guide glass 32 serving as an exposure unit
On both sides of the first mirrors 33, 3 each make an angle of 45 ° with the plane of the subject S moving in the vertical direction.
Reference numeral 3 ′ designates a base structure (not shown) inside the main body of the recording apparatus 101, similarly to the above-described roller shaft for conveying the subject.

FIG. 3 is a perspective view showing a mirror configuration as an optical system of the recording apparatus 101. As shown in the figure, in the exposure section, images on both sides of the subject S illuminated by a pair of illumination lamps 31 are reflected by first mirrors 33 and 33 ', and serve as recording means for recording an image or the like on a recording medium. The light is projected to the camera 38. First, in the first optical system A,
After passing through the slits 34 and 34 ', the passed image is the second image.
Is reflected obliquely downward by the mirror 35. And
This image is reflected upward again by the third mirror 36 and then forwardly reflected by the fourth mirror 37, and this reflected image passes through the imaging lens 39 of the camera 38 shown in detail in FIG. Then, an image is formed on a microfilm Fa as a recording medium on the capstan 40.

The capstan 40 is connected to a drive system of the main body of the recording apparatus 101 via a capstan clutch (not shown). Then, the capstan clutch is connected in accordance with the timing at which the subject S comes to the shooting position, and the capstan 40 is rotated, whereby the microfilm F
a. Note that an encoder (not shown) serving as a detection unit is connected to the capstan 40 so that the movement amount and the remaining amount of the microfilm Fa can be detected.

On the other hand, the subject S is exposed at the same exposure position as the camera 38 in the second optical system B projected to the reading section 45 as an image capturing means having a solid-state image pickup device.
After passing through the slits 41 and 41 ', the passed image is the second image.
Is reflected obliquely downward by the mirror 42. And
This image is reflected upward again by the third mirror 43, and then reflected forward by the fourth mirror 44. The reflected image is converted by the reading unit 45 into an electric signal corresponding to optical information of the image. The image information is sent to the external communication unit 46, and the image information is sent to the external connection personal computer via the external communication unit 46.

FIG. 5 is a block diagram showing the internal configuration of the reading section 45. In the figure, reference numeral 50 denotes a solid-state imaging device (CCD) for the front surface of the subject S, and 50 'similarly denotes a solid-state imaging device (CCD) for the back surface. The signals converted from light by the individual imaging devices 50 and 50 ′ are A
These are digitized by the / D converters 51 and 51 ', respectively.
The digitized image information is synthesized by the synthesizing circuit 52, and the multi-value image processing unit 53 corrects the light amount difference between the central part and the peripheral part of the illumination lamp 31 (shading correction).
In addition, correction for enhancing the gradation (γ correction) or correction for enhancing the change in the density of the image (edge enhancement) is performed. The image information processed in this manner is binarized in an image binarization circuit 54 depending on whether it is above or below a threshold value. Then, the binarized image information is subjected to a frame erasing process for removing a portion other than the image area in the binary image processing unit 55. The image information processed in this manner is sent to an externally connected personal computer via the external communication unit 46.

FIG. 6 is a front view of the microfilm scanner 102 equipped with the microfilm search device 103 of FIG. In the figure, 601 is a reader screen, 602 is a projection lens, and 603 is a control device (keyboard) as input means. The control device 603 includes an input unit 604 and a display unit 605. The input unit 604 includes a numerical key (numeric keypad) for setting an image address on a film and a search key for instructing a search. Usually, after inputting the numerical value of the address to be set with the numerical key, the search key is used. By pressing, an arbitrary image address can be designated.

FIG. 7 shows a microfilm scanner 10.
FIG. 2 is a perspective view illustrating a configuration of an optical system in a second embodiment. As will be described later, a desired image frame portion of the rolled microfilm Fb is searched for in the projection glass portion G, which is a projection position, by an automatic image frame search operation of the microfilm search device 103.
A light source lamp 70 provided on the side of the main body of the microfilm scanner 102 below the projection glass portion G
1, an image frame portion is illuminated from the lower side by illumination means including a spherical mirror 702, a condenser lens 703, and the like.
The illumination light transmitted through the film is transmitted to the projection lens 704 (FIG. 6).
And a reader screen (light diffusing plate) 709 (corresponding to the reader screen 601 shown in FIG. 6) via a reader unit optical system composed of a projection lens 602 shown in FIG. 6 and fixed first to fourth mirrors 705 to 708. ) Is enlarged and projected at a predetermined magnification on the back surface, and a micro image can be viewed as an enlarged image from the front side of the screen 709.

Reference numeral 710 denotes a scanner having a scanning first mirror 711 and a second mirror 712. A photoelectric conversion unit 713 includes a photoelectric conversion line sensor such as a CCD.
The scanner 710 is controlled to move forward and backward at right angles to the optical path between the fixed second mirror 706 and the third mirror 707 of the reader unit optical system, and when used as a reader, the scanning first mirror 711 is retracted from the above optical path. It is held in the position where it was set. When it is desired to scan and record the micro image enlarged and projected on the screen 709, the photoelectric conversion unit 713 is activated by instructing the image scan,
Further, the scanner 710 is moved in a direction to enter the optical path, and the scanning first mirror 711 scans the image light on the optical path. The scanning light is applied to the scanning second mirror 712.
And the photoelectric conversion element 7 via the slit 714
15 and the image operated by the photoelectric conversion unit 713 is extracted as an electric signal. The photoelectric conversion unit 713 includes a photoelectric conversion element, an electric signal amplification circuit, a storage unit, and the like.

FIG. 8 shows a microfilm search device 103.
FIG. The microfilm search device 103 of the present example is detachable from the microfilm scanner 102, and includes a carrier lower unit 801 and a carrier upper unit 802. The carrier lower unit 801 is fixed to the microfilm scanner 102. Is attached. 803 and 804 are front doors of the carrier upper unit 802. G is a projection glass part.

FIG. 9 shows a microfilm search device 103.
FIG. 14 is a diagram showing an internal mechanism of the carrier upper unit 802 of FIG. In the figure, 900 is a carrier upper unit 80
2 is the bottom plate. Reference numeral 901 denotes a film supply cartridge for storing a long microfilm Fb as an information recording medium in a roll shape. The film cartridge 901 is set on the film mounting portion of the carrier upper unit 802 from the side of the front door 803 of the carrier upper unit 802. Reference numeral 902 denotes a capstan roller, which drives the microfilm Fb in the cartridge 901. M1 is a solenoid for bringing the capstan roller 902 into contact with the microfilm Fb. 903 is a support arm, and 904 is a plunger. Reference numeral 905 denotes a spring, and the support arm 903 and the plunger 9
04, moving the capstan roller 902 away from the microfilm Fb.

M2 is a film rewinding motor,
The film spool in the cartridge 901 is rotated. S2 is a brake solenoid for the film rewind motor M2. When the brake solenoid S2 does not operate, the motor M2 can rotate. Also,
When the brake solenoid S2 operates, the control plate 906 fixed to the motor shaft is sucked to prevent the rotation of the motor M2.

Reference numerals 907 and 908 are film guide rollers. Reference numeral 909 denotes a take-up reel. M3 is a film winding motor for rotating the winding reel 909, S3 is a brake solenoid for the motor M3, and 910 is a brake plate. Reference numeral 911 denotes a line representing the optical center of the image projection unit. A guide plate for guiding the film along a film feeding path between the cartridge 901 and the take-up reel 909 is provided.

912 and 913 are detection sensors,
Mark detection means for detecting a search (measurement) mark M provided on the side of each image frame portion of the microfilm Fb. In the case of this example, the projection glass portion G, which is the projection position, is disposed on both sides of the film feeding path. 912
Is a detection sensor on the A channel side, and 913 is a detection sensor on the B channel side. These detection sensors 912 and 9
Reference numeral 13 denotes a built-in photoelectric conversion element, which detects a search mark by intermittently intersecting the light from the lamp 701 with the search mark M during the forward or reverse conveyance of the microfilm Fb, as described later. And outputs a search mark detection signal to the processing means described later. Reference numeral 914 denotes a photo encoder for detecting the transport speed and transport amount of the film.

Next, the photographing operation of the present system having the above configuration will be described. FIG. 10 is a flowchart illustrating a shooting operation according to the first embodiment. First, in step S101, when the user attempts to record a subject, the recording device 101 scans the subject while photographing the subject on a microfilm. Next, in step S102, the recording apparatus 101 transmits image information and microfilm address information to the personal computer 104. Then, step S103
, The personal computer 104 creates a database of image information and address information. At this time,
For example, a checksum of the image information for determining tampering of the image information is also recorded on the database.

Here, the operation of obtaining the image information required by the user from the database will be described. FIG.
5 is a flowchart illustrating an image acquisition operation according to the first embodiment.

First, in step S201, image information required by the user is stored in the personal computer 1 for example.
If it is desired to display the image information on the display 05, a search is performed for an image to be sought from the information in the database in the memory of the personal computer 104, and whether the image information is erased or falsified is checked by checking the checksum information or the like. . Here, if erasure or alteration has not been performed, the process proceeds to step S206, and the personal computer 1
The image information requested from the memory of the personal computer 105 is transmitted to the personal computer 105 and displayed on a display connected to the personal computer 105. If erasure or alteration has been performed, the process proceeds to step S202, and the personal computer 105
4 reads the corresponding microfilm address information from the database in the memory and transmits the address information to the microfilm search device 103.

Next, in step S203, the microfilm search device 103 searches for an image on the microfilm using the transmitted address information of the microfilm. In step S204, the image on the microfilm is read by the microfilm scanner 102, and the image information is read from the personal computer 1.
Send to 05. Next, in step S205, the personal computer 105 transmits the transmitted image information to the personal computer 104, and registers the image information in a database in the memory of the personal computer 104. Then, in step S206, the image information obtained from the memory of the personal computer 104 is transmitted to the personal computer 105, and displayed on a display connected to the personal computer 105.

In the above-described embodiment, the image information is obtained by scanning the image at the same time as the image is taken on the microfilm by the recording device 101. However, the address information for creating the database is transmitted to the personal computer 104 at the same time as the image is taken on the microfilm. The database may be created based on a photographing device for photographing on a microfilm and address information input by a user using any input means such as a keyboard.

Further, in the above embodiment, the recording device 10
1 and the microfilm scanner 102 are connected to different personal computers, but may be connected to the same personal computer.

In the above-described embodiment, the database in which image information, address information, and the like are recorded is created in the memory of the personal computer 104. However, the database may be stored in the personal computer 105. A memory in a personal computer (not shown) connected to the computer 105 may be used.
A memory (not shown) connected to the personal computer 105 may be used.

[Second Embodiment] Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

The configuration of the image search system according to the second embodiment is the same as that of the above-described embodiment, and a description thereof will be omitted. In the second embodiment, a document is recorded, and image information of the document is obtained.

FIG. 12 is a flowchart showing a photographing operation according to the second embodiment. First, in step S301, when the user attempts to record a document (subject), it is determined whether or not the document is the first page of the document. Here, if it is the first page, the process proceeds to step S302,
The recording device 101 scans a subject while photographing the subject on a microfilm. And step S
In step 303, image information and microfilm address information are transmitted from the recording apparatus 101 to the personal computer 104.

If it is determined in step S301 that the page is not the first page, the process proceeds to step S304, and the recording apparatus 1
At 01, a subject is photographed on a microfilm. next,
In step S305, the recording device 101 transmits the microfilm address information to the personal computer 104.

Next, in step S306, the personal computer 104 creates a database of only the image information and the address information of the first page of the document document, or only the address information. At this time, for example, a checksum of the image information for determining whether the image information has been tampered with is also recorded on the database. Then, in step S307, it is determined whether the photographing is completed.
01, and the above operation is repeated.

Next, the operation of the user to obtain the image information of the document manuscript desired from the database will be described.
FIG. 13 is a flowchart illustrating an image acquisition operation according to the second embodiment.

First, in step S401, if the user wants to display the image information of the document manuscript desired by the user on, for example, the display of the personal computer 105,
An image to be obtained is searched from information in a database in the memory of the personal computer 104. At this time, the first page of an arbitrary document is displayed on the display of the personal computer 105 from the database in the memory of the personal computer 104. Next, step S4
At 02, it is determined whether or not the content of the page is the first page of the desired document, and if it is the first page of the desired document, the process proceeds to step S403.

Next, in step S403, it is checked whether the desired image information has been erased or falsified by comparing checksum information. Here, if the erasure or alteration has not been performed, the process proceeds to step S408, where the image information obtained from the memory of the personal computer 104 is transmitted to the personal computer 105, and displayed on the display connected to the personal computer 105. If erasure or tampering has been performed, step S
Proceeding to 404, the personal computer 105 reads the address information of the microfilm corresponding to all the document originals from the database in the memory of the personal computer 104, and transmits the address information to the microfilm search device 103.

Next, in step S405, the microfilm search device 103 searches for all document original images on the microfilm using the transmitted microfilm address information. Then, in step S406, the microfilm scanner 102 reads all the document original images on the microfilm, and transmits all image information of the document original to the personal computer 105. Next, in step S407, the personal computer 105 transmits the transmitted image information to the personal computer 104, and registers the image information in a database in the memory of the personal computer 104. Then, in step S408, all the image information of the document document obtained from the memory of the personal computer 104 is transmitted to the personal computer 105 and displayed on a display connected to the personal computer 105.

In the above-described embodiment, the first page is a characteristic page for discriminating a document original. However, any page selected by the user or a plurality of pages may be used.

Further, in the above embodiment, the recording apparatus and the microfilm scanner are connected to different personal computers, but they may be connected to the same personal computer.

In the above-described embodiment, the database in which the image information, the address information, and the like are recorded is created in the memory in the personal computer 104. However, the database may be stored in the personal computer 105. Personal computer 105
May be a memory in a personal computer (not shown) connected to the personal computer 10.
4. A memory (not shown) connected to the personal computer 105 may be used.

As described above, according to the embodiment,
If the image information in the memory has not been erased or tampered with, it is supplied as it is, and if it has been erased or tampered with, the possibility of tampering is small, and the image information is restored from a microfilm shooting medium that is excellent in storage Thus, highly reliable image information can always be supplied to the user.

Further, when a document document is photographed, only the first page or the like in which the document can be easily identified is recorded in the memory as image information, so that the usual memory usage is greatly reduced. By displaying the page on the display when searching for a document, the user can easily search for the document and obtain image information of the document original from the microfilm.

The present invention can be applied to a system including a plurality of devices (for example, a host computer, an interface device, a reader, a printer, etc.), but can be applied to a single device (for example, a copier, a facsimile). Device).

Further, an object of the present invention is to supply a storage medium storing a program code of software for realizing the functions of the above-described embodiments to a system or an apparatus, and a computer (CPU or MP) of the system or apparatus.
It goes without saying that U) can also be achieved by reading and executing the program code stored in the storage medium.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD
-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

When the computer executes the readout program code, not only the functions of the above-described embodiment are realized, but also the OS (Operating System) running on the computer based on the instruction of the program code. ) May perform some or all of the actual processing, and the processing may realize the functions of the above-described embodiments.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

[0056]

As described above, according to the present invention,
When the image information is corrupted due to tampering, erasing, or the like, it is possible to provide the image information by restoring the image information from the image photographed on the photographing medium.

[Brief description of the drawings]

FIG. 1 is an external perspective view illustrating an image search system according to an embodiment.

FIG. 2 is a schematic diagram illustrating a configuration of a subject conveyance system of the recording apparatus 101.

FIG. 3 is a perspective view illustrating a mirror configuration that is an optical system of the recording apparatus 101.

FIG. 4 is a diagram showing a schematic configuration of a camera of the recording apparatus 101.

FIG. 5 is a block diagram illustrating an internal configuration of a reading unit 45 of the recording apparatus 101.

FIG. 6 is a front view of the microfilm scanner 102 equipped with the microfilm search device 103.

FIG. 7 is a perspective view showing a configuration of an optical system in the microfilm scanner 102.

FIG. 8 is a perspective view showing the appearance of the microfilm search device 103.

FIG. 9 is a diagram showing an internal mechanism of a carrier upper unit 802 of the microfilm search device 103.

FIG. 10 is a flowchart illustrating a photographing operation according to the first embodiment.

FIG. 11 is a flowchart illustrating an image acquisition operation according to the first embodiment.

FIG. 12 is a flowchart illustrating a shooting operation according to the second embodiment.

FIG. 13 is a flowchart illustrating an image acquisition operation according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Recording device 102 Micro film scanner 103 Micro film search device 104 Personal computer 105 Personal computer

Claims (9)

[Claims] An image retrieval system comprising: a recording device that records image information and retrieval information of the image information; and an image retrieval device that retrieves an image photographed on a photographing medium. When obtaining desired image information from the information, if the image information is erased, falsified, etc., the reading unit that reads the search information of the image information from the recording device, and read by the reading unit An image, comprising: a search unit that searches for an image shot on the shooting medium based on search information; and a registration unit that reads the image searched by the search unit as image information and registers the image information in the recording device. Search system. 2. The image according to claim 1, wherein the image information recorded in the recording device is recorded in the recording device as search information as to whether or not the image information has been erased or falsified. Search system. 3. The image recording apparatus according to claim 1, wherein when recording the document image on the photographing medium, the recording device reads only an arbitrary page using a reading unit and records the image as image information. Image search system described in 1. 4. The image retrieval system according to claim 3, further comprising display means for displaying an arbitrary page recorded in said recording device at the time of said image retrieval. 5. A search method for an image search system, comprising: a recording device that records image information and search information of the image information; and an image search device that searches for an image photographed on a photographing medium. A step of reading image information search information from the recording device when erasing, falsification, or the like is performed on the image information when acquiring desired image information from the image information in A search step of searching for an image photographed on the photographing medium based on the search information read in step (a), and a registration step of reading the image searched in the search step as image information and registering the image information in the recording device. And search method. 6. The retrieval apparatus according to claim 5, wherein information as to whether or not the image information recorded in said recording apparatus has been deleted or falsified is recorded in said recording apparatus as retrieval information. Method. 7. The recording apparatus according to claim 5, wherein when the document image is photographed on a photographing medium, only an arbitrary page is read in a reading step and recorded as image information.
Alternatively, the search method according to claim 6. 8. The retrieval method according to claim 3, further comprising a display step of displaying an arbitrary page recorded in the recording device at the time of the image retrieval. 9. A computer-readable storage medium in which a program code of a search method of an image search system is stored, wherein when acquiring desired image information from image information in the recording device, the image information is stored in a storage medium. When erasing, falsification, or the like has been performed, a code of a reading step of reading search information of image information from the recording device, and a code of a search step of searching for an image captured on the imaging medium based on the read search information And a code for a registration step of reading the searched image as image information and registering the image information in the recording device.