JP2000023918A - Ophthalmic photographing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the time for photographing the fundus oculi by eliminating the need for an erasing operation for each image. SOLUTION: A photographer, using an attached information control means 7, adds information meaning storage to eyeground image data stored in a memory 4, and stores the data in a storage medium 5. After a photographic operation is finished, the photographer operates an image erasing signal input means 8 and uses an image control means 3 to read the eyeground image data and the attached information stored in the storage medium 5 into the memory 4. From the data, an attached information discrimination means 9 determines whether or not the information meaning storage exists in the eyeground image data, and eliminates the eyeground image data unworthy of storage and the attached information from the storage medium 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic photographing apparatus capable of photographing an eye to be examined with an electronic image.

[0002]

2. Description of the Related Art Conventionally, in a fundus camera, a television camera is used as an image sensor in addition to a silver halide film,
2. Description of the Related Art An imaging method for recording a digitized fundus image on a recording medium such as a still video is widely used.

[0003] In such an imaging method, a recording apparatus is used which records incidental information such as a patient number and a date useful when reading a fundus image on a recording medium in association with the fundus image.
Unlike a silver halide film, erasing after photographing is possible, so that unnecessary images are erased from an image recording medium while confirming the image after photographing.

Japanese Patent Application Laid-Open No. Hei 4-197336 proposes an apparatus which includes an image erasing means, displays a photographed image immediately after photographing, and performs an erasing operation on an image which does not need to be stored after confirmation by a photographer. Have been.

[0005]

However, in the above-mentioned conventional example, it is necessary to perform an erasing operation by judging the presence or absence of image erasure for each image taken after photographing. However, there is a problem that it is necessary to judge the presence or absence of erasure in a short time during a series of photographing, and furthermore, once the erasure operation is performed, the image cannot be restored. Also,
Since the photographing of the fundus camera is performed in a small quasi-dark room, it takes time to operate the erase switch of the image recording device. Will give.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide an ophthalmologic photographing apparatus capable of shortening the time of fundus photographing that enables editing of each data.

Another object of the present invention is to provide an ophthalmologic photographing apparatus capable of arbitrarily erasing unnecessary images.

It is still another object of the present invention to provide an ophthalmologic photographing apparatus capable of transferring necessary data from a first recording medium to a second recording medium.

[0009]

An ophthalmologic photographing apparatus according to the present invention for achieving the above object forms an eye image on an image pickup means and records the image of the eye as an electric signal. A supplementary information input means for inputting supplementary information attached to the subject's eye image, a memory for storing the subject's eye image and the supplementary information in association with each other, and a recording medium for recording data stored in the memory. A supplementary information discriminating means for discriminating the content of the supplementary information; and an editing means for editing the eye image to be inspected and the supplementary information according to a result of the discrimination by the supplementary information discriminating means.

In the ophthalmologic photographing apparatus according to the present invention, in the ophthalmologic photographing apparatus for forming an eye image on an imaging means and recording the eye image as an electric signal, the additional information attached to the eye image Additional information input means for inputting, and a memory for storing the eye image to be examined and the additional information in association with each other,
A recording medium for recording data stored in the memory, additional information determining means for determining the content of the additional information, and the subject's eye image and the additional information according to the determination result of the additional information determining means. Erasing means for erasing from a recording medium.

An ophthalmologic photographing apparatus according to the present invention is an ophthalmologic photographing apparatus which forms an eye image on an imaging means and records the eye image as an electric signal, wherein additional information accompanying the eye image is input. Additional information input means, a memory for recording the image of the subject's eye and the additional information in association with each other, a first recording medium for recording data stored in the memory, and a recording medium for recording on the first recording medium. A second recording medium for recording at least a portion of the attached data, additional information determining means for determining the content of the additional information, and recording on the first recording medium according to a result of the determination by the additional information determining means. Transfer means for transferring the eye image to be inspected and the supplementary information to the second recording medium.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the illustrated embodiment. FIG. 1 shows a configuration diagram of a fundus camera according to a first embodiment. A television camera 2 which is an imaging means for converting a fundus image into an electric signal is attached to a fundus camera main body 1. Connected to optical system. The output of the television camera 2 is connected to an image control means 3 for controlling calling and recording of image data and supplementary information, and the output of the image control means 3 is used to control the strobe light emission of the fundus camera and the synchronization of image capture. And connected to the retinal camera body 1.

The output of the image control means 3 is connected to a memory 4 composed of a volatile medium, a non-volatile recording medium 5 such as a magneto-optical disk, and a television monitor 6, and is provided with additional information provided near the photographer. The output of the control means 7 and the image erasure signal input means 8, the output of the accompanying information discriminating means 9, and the output of the display switching signal input means 10 are connected to the image control means 3.

After aligning the eye E and the fundus camera body 1, the photographer presses a photographing switch (not shown) to photograph a fundus image in synchronism with flash emission. The fundus image formed on the television camera 2 is converted into an electric signal and taken into the image control means 3. In the image control means 3,
An image signal from the television camera 2 is A / D converted and recorded in the memory 4, and D / A converted to display a fundus image on the television monitor 6. The photographer looks at the fundus image displayed on the television monitor 6 and determines whether or not to save the image. In the case of saving, the photographer adds, to the fundus image data stored in the memory 4, information that means saving or information necessary for interpretation by the supplementary information control means 7 at hand. The accompanying information is recorded on the recording medium 5 together with the image data.

After the end of a series of photographing operations, the photographer operates the image erasing signal input means 8. When receiving the signal from the image erasure signal input unit 8, the image control unit 3 reads the fundus image data and the supplementary information recorded on the recording medium 5 into the memory 4 and outputs the supplementary information to the supplementary information discrimination unit 9. The supplementary information discriminating means 9 discriminates whether the fundus image data has information indicating the preservation or the information necessary for interpretation, and outputs the result to the image control means 3. The image control means 3 erases the fundus image data and the supplementary information from the recording medium 5 that have no information indicating the storage based on the result of the discrimination by the supplementary information discriminating means 9.

Normally, medical images require high image quality, and are stored in the recording medium 5 in an uncompressed format such as TIFF. At this time, as shown in FIG. 2, an area for attaching additional information of ASCII or text data is secured as a tag area in the image data.

FIG. 3 shows how the additional information control means 7 controls the information in the tag area. FIG. 3A shows the image data after the tag information is controlled by the additional information control means 7 on a recording medium. 5 is recorded. here,
When a signal is input from the image erasure signal input unit 8, the image control unit 3 performs a
Of the fundus image data recorded on the recording medium 5, the fundus image data and tag information to which the predetermined tag information indicated by the asterisk is not attached are deleted. As a result, the screen display includes only the fundus image data and tag information marked with a star as shown in FIG. 3B.

Since the tag information attached to the fundus image data during the photographing can be easily changed, the supplementary information control means 7 reads the fundus image data and the tag information from the recording medium 5 to the memory 4; The read tag information can be changed and stored in the recording medium 5 again. Therefore, it is only necessary to roughly control the tag information during the photographing of the fundus image, and it is possible to change the tag information after reading the fundus image in detail after the photographing is completed. Can be prevented from occurring.

The images may be rearranged by using the image erasing signal of the present embodiment.

FIG. 4 shows a control example of the supplementary information control means 7 in this case, and each image is composed of supplementary information (storage target information, ID number) and image data as shown in FIG. The photographer checks the photographed image on the image display means 6, and controls the supplementary information control means 7 to the supplementary information of each image to be saved as shown in FIG. .

When a signal is input from the image erasure signal input means 8, the image control means 3 rearranges the images based on the judgment result of the incidental information judgment means 9 as shown in FIG. As a result, an image can be efficiently displayed at the time of interpretation.

In addition, not the tag information but the supplementary information,
Header information or footer information may be used. In addition, upon erasing an image, not only the batch erasure is performed by operating the image erasure signal input means 9 but also the fundus image to be erased is displayed on the television monitor 6 by operating the display switching signal input means 10 and photographing is performed. After prompting a response from a reader or an interpreter, the image may be deleted by operating the image deletion signal input unit 9.

FIG. 5 is a block diagram of a fundus camera according to the second embodiment. Members having the same functions as those in FIG. 1 are denoted by the same reference numerals. The output of the image control means 3 is connected to a volatile memory 4, a first non-volatile recording medium 11 such as a magneto-optical disk, a second non-volatile recording medium 12 such as a magneto-optical disk or DAT, and a television monitor 6 for photographing. The outputs of the supplementary information control means 7, the supplementary information discriminating means 9, the display switching signal input means 10, and the image transfer signal input means 13 provided near the user are connected to the image control means 3.

As in the first embodiment, the photographer looks at the fundus image displayed on the television monitor 6 after photographing and determines whether or not to save the image. In the case of storing, the additional information control means 7 adds information indicating storage to the additional information of the fundus image data stored in the memory 4, and stores the fundus image data and the additional information in the first recording medium 11. Record.

After the end of a series of photographing operations, the photographer operates the image transfer signal input means 13. When receiving the signal from the image transfer signal input unit 13, the image control unit 3 reads the fundus image data and the supplementary information recorded on the first recording medium 11 and outputs the supplementary information to the supplementary information discriminating unit 9. .

The supplementary information discriminating means 9 discriminates the presence / absence of information indicating storage, and outputs the discrimination result to the image control means 3. The image control means 3 transfers the fundus image data and the supplementary information having the information indicating the storage to the second recording medium 12 based on the result of the discrimination by the supplementary information discriminating means 9. On the other hand, fundus image data and supplementary information without information indicating storage are
Is not transferred to the recording medium 12. Thereafter, the process proceeds to the processing of the next fundus image data.

By this operation, only the fundus image data to be stored and the supplementary information are recorded on the second recording medium 12. At this time, the fundus image data of the first recording medium 11 is
It can be used as backup data.

By operating the display switching signal input means 10 as in the first embodiment, a fundus image to be transferred or not to be transferred is displayed on the television monitor 6 to prompt a response from a photographer or a radiogram interpreter. You may do so. Further, in addition, the entire fundus image and the supplementary information may be displayed, and the supplementary information may be input again before being transferred to the second recording medium.

[0029]

As described above, the ophthalmologic photographing apparatus according to the present invention discriminates the contents of the supplementary information of the subject's eye and edits the subject's eye image and the supplementary information so that the photographing operation can be performed. Since the operation can be performed simply and easily, the burden on the photographer can be greatly reduced.

Further, the ophthalmologic photographing apparatus according to the present invention discriminates the contents of the supplementary information of the subject's eye and erases the subject's eye image and the supplementary information from the recording medium, thereby simplifying the photographing operation. , The burden on the photographer can be greatly reduced.

Further, the ophthalmologic photographing apparatus according to the present invention is provided with two recording media for recording an eye image to be examined and its accompanying information,
By discriminating the contents of the supplementary information recorded on the first recording medium and transferring a part of the data to the second recording medium, it is possible to prevent the image from being erased by mistake,
Backup data can be created automatically.
Therefore, even if you accidentally specify an unnecessary image,
The supplementary information can be corrected after the photographing of the subject's eye image is completed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a first embodiment.

FIG. 2 is an explanatory diagram of an image format.

FIG. 3 is an explanatory diagram of image deletion.

FIG. 4 is an explanatory diagram of image editing.

FIG. 5 is a configuration diagram of a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fundus camera main body 2 Television camera 3 Image control means 4 Volatile memory 5, 11, 12 Nonvolatile recording medium 6 TV monitor 7 Additional information control means 8 Image deletion signal input means 9 Additional information discriminating means 10 Display switching signal input means 13 Image transfer signal input means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Motoya Takai 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Hiroshi Nishihara 3-30-2 Shimomaruko, Ota-ku, Tokyo Kia Within Non Corporation (72) Inventor Tetsuji Ogawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Corporation (72) Inventor Kenichi Kashiwagi 3-30-2, Shimomaruko, Ota-ku, Tokyo Within Canon Corporation

Claims (8)

[Claims] 1. An ophthalmologic photographing apparatus which forms an eye image on an imaging unit and records the eye image as an electrical signal.
Supplementary information input means for inputting supplementary information attached to the subject's eye image, a memory for storing the subject's eye image and the supplementary information in association with each other, a recording medium for recording data stored in the memory, An ophthalmologic photographing apparatus comprising: additional information determining means for determining the content of additional information; and editing means for editing the eye image to be inspected and the additional information in accordance with a result of the determination by the additional information determining means. 2. An ophthalmologic photographing apparatus which forms an eye image on an imaging means and records the image of the eye as an electric signal.
Supplementary information input means for inputting supplementary information attached to the subject's eye image, a memory for storing the subject's eye image and the supplementary information in association with each other, a recording medium for recording data stored in the memory, Ophthalmology, comprising: additional information determining means for determining the content of the additional information; and erasing means for erasing the subject's eye image and the additional information from the recording medium according to the determination result of the additional information determining means. Shooting equipment. 3. A display control signal input means, comprising display control means for displaying at least the eye image in accordance with a result of the discrimination of the incidental information discriminating means by operation of the display switch signal input means. An ophthalmologic photographing apparatus according to item 1. 4. The ophthalmologic photographing apparatus according to claim 3, wherein the erasing means erases the eye image and the supplementary information displayed on the display control means according to an input signal from an erasing signal input means. 5. An ophthalmologic photographing apparatus that forms an eye image on an imaging unit and records the eye image as an electrical signal.
Supplementary information input means for inputting supplementary information attached to the subject's eye image, a memory for recording the subject's eye image and the supplementary information in association with each other, and a first recording medium for recording data stored in the memory A second recording medium for recording at least a part of data recorded on the first recording medium; an additional information discriminating means for discriminating the content of the additional information; and a discrimination result of the additional information discriminating means. According to the first
Transfer means for transferring the eye image to be inspected and the supplementary information recorded on the recording medium to the second recording medium. 6. The ophthalmologic photographing apparatus according to claim 5, wherein said transfer means has transfer signal input means, and performs transfer in accordance with an input signal from said transfer signal input means. 7. The apparatus according to claim 5, further comprising display switching signal input means, and display means for displaying at least the subject's eye image in accordance with a result of the discrimination by the incidental information discriminating means by operation of the display switching signal input means. The ophthalmologic imaging apparatus according to the above. 8. The ophthalmologic photographing apparatus according to claim 7, wherein the transfer unit transfers the eye image and the supplementary information displayed on the display unit by an input signal from the transfer signal input unit.