JP2014018251A - Ophthalmological photographing apparatus and ophthalmological photographing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image with high visibility in an external terminal.SOLUTION: An ophthalmological photographing apparatus comprises: a photographing optical system for photographing the eye to be tested; and first display means for displaying an operation screen of the photographing optical system and an image of the eye to be tested acquired by the photographing optical system. The ophthalmological photographing apparatus is provided with: image output means for outputting image data, which are obtained by the ophthalmological photographing apparatus, to an external terminal having second display means different from the first display means via a network; and image change means for changing resolution of image data so as to output the image data, which comprise resolution adapted to resolution of the second display means, by the image output means.

Description

  The present invention relates to an ophthalmologic photographing apparatus and an ophthalmic photographing program for observing an eye to be examined using a photographed image acquired by a photographing optical system.

  2. Description of the Related Art Conventionally, an ophthalmologic photographing apparatus for obtaining a tomographic image of an eye to be examined using an optical interference technique and evaluating the state of the eye to be examined from the obtained tomographic image is known (see Patent Document 1).

  In such an ophthalmologic photographing apparatus, a front image obtained by infrared light is displayed on a monitor, and a region (part) where the front image is present is selected. Then, a tomographic image of the selected region is acquired using an optical interference technique, and the image data is temporarily stored in a storage unit (for example, a hard disk) of a personal computer. The stored image data is displayed on the monitor of the PC, and the examiner determines whether or not there is an abnormality in the eye to be examined by looking at the tomographic image thus obtained.

  In some cases, the acquired image data is separately transferred to an external terminal provided for observation at a location different from the shooting location.

JP 2008-29467 A

  Usually, an image acquired by an ophthalmic imaging apparatus is a high-resolution image, and high-resolution image data is stored in an external terminal having a monitor with a lower resolution than the resolution of the image acquired by the ophthalmic imaging apparatus. It may be transferred. In this case, image reduction processing and resolution adjustment are performed in the external terminal, and the captured image is displayed on the monitor of the external terminal. For external terminals that do not have special image processing (bilinear method, two-arrest neighbor method, bicubic method, etc.) functions, when the image is observed on the monitor of the external terminal, the image or characters of the eye to be examined A deteriorated image is displayed as if the image has been crushed (see FIG. 6A). For this reason, visibility becomes low and observation becomes difficult.

  In view of the above problems, the present invention relates to an ophthalmologic photographing apparatus that can provide an image with high visibility on an external terminal.

  In order to solve the above problems, the present invention is characterized by having the following configuration.

(1) An ophthalmologic photographing apparatus comprising: a photographing optical system for photographing the eye to be examined; an operation screen of the photographing optical system; and a first display means for displaying an image of the eye to be examined acquired by the photographing optical system. The image output means for outputting the image data obtained by the ophthalmologic photographing apparatus via a network toward an external terminal having the second display means different from the first display means, and the second display means Image changing means for changing the resolution of the image data in order to output the image data having a resolution adapted to the resolution of the image data by the image output means;
It is characterized by providing.
(2) The ophthalmologic photographing apparatus according to (1), further comprising setting means for setting resolution information of the second display means, wherein the image changing means is based on the resolution information set by the setting means, The resolution of the image data is changed.
(3) In the ophthalmologic photographing apparatus according to (1) or (2), the image processing unit includes an image forming unit that processes the image of the eye to be examined and forms image data including an analysis map indicating an analysis result of the eye to be examined. The changing unit changes the resolution of the image data including the analysis map formed by the image forming unit.
(4) In the ophthalmologic imaging apparatus according to (1) or (2), an image forming unit that processes a plurality of images of the subject's eye and forms image data including a plurality of images of the subject's eye, and the image changing unit Changes the resolution of the image data formed by the image forming means.
(5) In the ophthalmologic photographing apparatus according to any one of (1) to (4), the image changing unit further outputs the image data having a color tone corresponding to a color profile of the second display unit by the output unit. Therefore, the color tone of the image data is adjusted.
(6) In the ophthalmologic photographing apparatus according to any one of (1) to (5), the photographing optical system acquires a tomographic image of the eye to be examined by detecting an interference state between the measurement light from the eye to be examined and the reference light. This is an interference optical system.
(7) In the ophthalmologic photographing apparatus according to (6), the image forming unit processes the tomographic image of the eye to be examined obtained by the interference optical system, obtains thickness information regarding a predetermined part of the eye to be examined, Based on the thickness information, at least a color map that expresses thickness information at each position related to a predetermined part of the eye to be examined in color, and a numerical map that expresses thickness information at each position related to the predetermined part of the eye to be examined numerically Image data including an analysis map having either of them is formed.
(8) In the ophthalmologic photographing apparatus according to any one of (1) to (7), the resolution of the image data acquired by the ophthalmic photographing apparatus is larger than the resolution of the second display unit of the external terminal. Features.
(9) In the ophthalmologic photographing apparatus according to any one of (1) to (8), an output unit that outputs a trigger signal for starting output of the image data to an external terminal is provided, and the image changing unit includes The resolution of the image data is changed based on the trigger signal, and the image output means outputs the image data to an external terminal after the resolution of the image data is changed by the image change means. And
(10) An ophthalmologic photographing apparatus comprising: a photographing optical system for photographing the eye to be examined; an operation screen for the photographing optical system; and a first display means for displaying an image of the eye to be examined acquired by the photographing optical system. In the ophthalmologic photographing program to be executed by the computer, an image output step of outputting the image data obtained by the ophthalmic photographing apparatus via a network toward an external terminal having second display means different from the first display means And an image changing step for changing the resolution of the image data to output the image data having a resolution adapted to the resolution of the second display means to the computer of the ophthalmologic photographing apparatus. It is made to perform.

  ADVANTAGE OF THE INVENTION According to this invention, an image with high visibility can be provided in an external terminal.

  DESCRIPTION OF EMBODIMENTS An embodiment for carrying out an apparatus according to the present invention will be described with reference to the drawings. 1-6 is a figure for demonstrating the apparatus and program which concern on this embodiment.

<Overview>
An overview of an ophthalmologic photographing apparatus and an ophthalmic photographing program according to an embodiment of the present invention will be described. In the following description, the present invention will be described by taking an ophthalmologic photographing apparatus as an example.

  Since the ophthalmologic photographing apparatus according to the present embodiment outputs image data having a resolution adapted to the resolution of the monitor of the external terminal, the resolution of the image data acquired in advance is changed. As the degree of resolution adapted to the resolution of the monitor of the external terminal, for example, when observing the image output from the ophthalmologic photographing apparatus on the monitor of the external terminal, the deterioration of the image or characters of the eye to be examined can be tolerated. Any resolution adjusted in advance may be used. For example, it is preferable that the resolution is substantially the same as the resolution of the monitor of the external terminal. Thereby, deterioration of the image or characters of the eye to be examined is not visually recognized, and the examiner can perform good observation. Even if the resolution or resolution of the eye of the subject is lower or larger than the resolution of the monitor of the external terminal, a certain effect can be obtained as long as the examiner can tolerate.

  In this embodiment, the ophthalmologic photographing apparatus 1 includes a photographing optical system, a first display unit (for example, a monitor 75), an image output unit, and an image change unit.

  The photographing optical system is used for photographing the eye to be examined. For example, the photographing optical system includes an interference optical system (optical coherence tomography device) for acquiring a tomographic image of the eye to be examined by detecting an interference state between the measurement light from the eye to be examined and the reference light. . In addition, examples of the photographing optical system include a laser scanning opthalmoscope (SLO) and a fundus camera optical system.

  The first display means displays an operation screen of the photographing optical system and an image of the eye to be examined acquired by the photographing optical system.

  For example, in the present embodiment, a CPU (arithmetic control unit) 70 serves as an image output unit and an image change unit.

  The image output means outputs the image data obtained by the ophthalmologic photographing apparatus 1 to the external terminal 30 having the second display means (for example, the monitor 31) different from the first display means via the network. At this time, the image changing means changes the resolution of the image data so that the image output means outputs image data having a resolution adapted to the resolution of the second display means.

  In the present embodiment, the resolution of the image data acquired by the ophthalmologic photographing apparatus is larger than the resolution of the second display unit of the external terminal 30.

  For example, the resolution of the second display unit is set by a setting unit (for example, the operation unit 76 and the calculation control unit 70) for setting the resolution information of the second display unit. The image changing unit changes the resolution of the image data based on the resolution information set by the setting unit. Further, for example, the arithmetic control unit 70 may acquire terminal information from an external terminal and read the resolution of the second display unit.

  For example, the image data output to the external terminal includes image data including an analysis map indicating the analysis result of the eye to be examined formed by the image forming means provided in the ophthalmologic photographing apparatus 1.

  The image data including the analysis map has at least one of a color map and a numerical map. For example, when the photographing optical system of the ophthalmologic photographing apparatus 1 is an interference optical system for acquiring a tomographic image of the eye to be examined, the image forming unit processes the tomographic image of the eye to be examined acquired by the interference optical system. The thickness information about the predetermined part of the eye to be examined is acquired, and based on the thickness information, the color map expressing the thickness information at each position on the predetermined part of the eye to be examined in color, the position at each position about the predetermined part of the eye to be examined A numerical map that expresses thickness information by numerical values is formed.

  Further, for example, the image data output to the external terminal may be image data including a plurality of images of the eye to be examined formed by the image forming means provided in the ophthalmologic photographing apparatus 1. Image data including a plurality of images of the eye to be examined is acquired by processing a plurality of images of the eye to be examined by the image forming means. Then, the image changing unit changes the resolution of the image data formed by the image forming unit. In the present embodiment, a CPU (arithmetic control unit) 70 also serves as an image forming unit.

  As the resolution change of the image data, the resolution change timing may be completed when the image data is output to the external terminal 30.

  For example, the resolution change timing may be configured such that the resolution change is performed based on a trigger signal for starting output of image data to an external terminal. In this case, the ophthalmologic photographing apparatus 1 includes an output unit (for example, an operation unit 76) that outputs a trigger signal for starting output of image data to an external terminal. Then, when the trigger signal is output from the output unit, the image changing unit changes the resolution of the image data based on the trigger signal, and the image output unit changes the resolution of the image data by the image changing unit, Output image data to an external terminal.

  Further, for example, the resolution change timing may be configured to change the resolution in advance before the image data is acquired by the ophthalmologic photographing apparatus 1 and stored in the memory 72.

  In addition, when changing the resolution of the acquired image data, you may make it change the resolution of several image data acquired previously collectively. As the plurality of image data, for example, the CPU 70 collectively sets the resolution of the image data (for example, images of a plurality of eyes to be examined and images including a plurality of analysis maps) acquired by the ophthalmologic photographing apparatus 1 for each subject. To change. For example, the CPU 70 obtains the resolution of the plurality of image data acquired in advance based on a trigger signal for starting output of the image data to the external terminal after the plurality of image data is acquired for a certain subject. Change all at once.

  In this embodiment, the image changing unit may further change other parameters to the format of the external terminal that is the transfer destination. For example, since the image output unit outputs image data having a color tone corresponding to the color profile of the second display unit, the color tone of the image data may be adjusted.

  In the present embodiment, the ophthalmologic photographing apparatus has been described as an example, but the present invention is not limited to this. For example, ophthalmic imaging software (program) that performs the functions of the above embodiments is supplied to a system or apparatus via a network or various storage media. A computer of the system or apparatus (for example, a CPU) can also read and execute the program. In this case, the present invention is an ophthalmic imaging program to be executed by a computer of the ophthalmic imaging apparatus. The ophthalmologic photographing apparatus includes a photographing optical system for photographing the eye to be examined, an operation screen for the photographing optical system, and first display means for displaying an image of the eye to be examined acquired by the photographing optical system.

  An ophthalmologic photographing program outputs an image data obtained by an ophthalmologic photographing apparatus to an external terminal having a second display means different from the first display means via a network, and a second display means In order to output image data having a resolution adapted to the resolution in the image output process, an image changing process for changing the resolution of the image data is executed by the computer of the ophthalmologic photographing apparatus.

<Example>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating an example of an ophthalmologic photographing apparatus 1 according to the present embodiment. The ophthalmologic photographing apparatus 1 is used, for example, for photographing an eye to be examined and observing the photographed image. In the following description, an optical coherence tomography device (OCT device) that acquires a tomographic image of the eye to be examined will be described as an example of the ophthalmologic imaging apparatus 1.

  For example, the ophthalmologic photographing apparatus 1 is connected to an external terminal 30 via a network (bus, LAN, etc.), and can transmit and receive image data and the like to each other. For example, the external terminal 30 includes a PC (personal computer) including a monitor 31 and a CPU 32 (for example, a desktop computer). Of course, the external terminal 30 may have a configuration in which the monitor 31 and the CPU 32 are integrated (for example, a notebook computer, a tablet computer, etc.).

  The ophthalmologic imaging apparatus 1 transfers the acquired tomographic image data to the external terminal 30. The transferred image data is stored in a storage device 33 (for example, a hard disk or a flash memory) provided in the external terminal 30. The external terminal 30 reads the image data stored in the storage device and displays a tomographic image on the monitor 31 of the external terminal. In this way, the tomographic image acquired by the ophthalmologic photographing apparatus 1 is also observed on the external terminal 30.

  As the external terminal 30, a captured image is stored in the storage device 33 of the external terminal (personal computer) 30 connected to the ophthalmic imaging apparatus 1, and the captured image stored in the storage device 33 is the monitor 31 of the external terminal 30. It is not limited to the form displayed on the screen. The external terminal 30 is an external terminal connected to the ophthalmologic photographing apparatus 1 having the ophthalmic photographing unit 10 and the monitor 75 via a network and having a monitor 31 (different from the monitor 75). Well, it is not necessary for the external terminal to have a storage device. For example, the configuration may be such that the photographed image is stored in an image server connected to the ophthalmologic photographing apparatus 1 via a network. In this case, the captured image stored in the image server is displayed on the monitor 31 when the external terminal 30 accesses the image server. In this case, the image server is used as a storage device (for example, a hard disk or a flash memory).

  The ophthalmologic photographing apparatus 1 includes an ophthalmic photographing unit 10 and an ophthalmic analysis unit 20. The ophthalmologic imaging unit 10 has, for example, an interference optical system and is used for acquiring a tomographic image. The fundus analysis unit 20 is used for observing a fundus image captured by the ophthalmologic imaging unit 10 on a monitor.

  FIG. 2 is a block diagram illustrating the configuration of the ophthalmic analysis unit 20. The ophthalmic analysis unit 20 includes a CPU (arithmetic control unit) 70, an operation unit 76, a memory (storage unit) 72, and a monitor 75. Each unit is electrically connected to the control unit 70 via a bus or the like. Has been.

  The control unit 70 controls the operation of each unit based on the ophthalmic analysis program and various control programs stored in the memory 72. The ophthalmologic analysis unit 20 can be used by executing this ophthalmologic analysis program on a computer. As the control unit 70, the operation unit 76, the memory 72, and the monitor 75, an arithmetic processing unit, an input unit, a storage unit, and a display unit of a commercially available PC (personal computer) are used to install an ophthalmic analysis program on the commercially available PC. You may make it do.

  In this embodiment, an ophthalmologic photographing apparatus in which the ophthalmic photographing unit 10 and the ophthalmic analyzing unit 20 are integrated is described as an example, but the present invention is not limited to this. For example, a configuration in which the ophthalmologic photographing unit 10 and the ophthalmic analyzing unit 20 are respectively configured and the ophthalmic photographing unit 10 and the ophthalmic analyzing unit 20 are connected may be taken as an example.

  The ophthalmologic imaging unit 10 is, for example, an optical coherence tomography device (OCT device). The OCT device divides the light beam emitted from the light source into measurement light and reference light, guides the measurement light beam to the fundus of the eye to be examined, guides the reference light to the reference optical system, and then reflects the measurement light reflected from the fundus and the reference The state of interference with light is detected by a detector. Then, a tomographic image is acquired by image processing based on the light reception signal output from the detector. Further, a front image (front image) of the fundus of the eye to be examined is acquired by the front image capturing optical system provided in the OCT device. Examples of the front image capturing optical system include a laser scanning opthalmoscope (SLO) and a fundus camera optical system. Further, an OCT front image imaging optical system that obtains an OCT front image by scanning the measurement light two-dimensionally and integrating the spectral intensity of the interference signal from the light receiving element at each of the XY points may be used. The tomographic image and the fundus front image are matched.

  The ophthalmologic imaging unit 10 is connected to the control unit 70 of the ophthalmic analysis unit 20. The ophthalmological analyzer 20 has an image changing function. For example, the control unit 70 of the ophthalmic analysis unit 20 performs a calculation process for changing the resolution of the image data stored in the memory 72 (details will be described later).

  The ophthalmological analysis unit 20 has an image analysis function. For example, the control unit 70 performs arithmetic processing on the image data stored in the memory 72 and performs analysis. For example, the control unit 70 detects a layer position from a tomographic image, and creates a graph or the like of a predetermined interlayer thickness (layer thickness).

  The operation unit 76 includes various switches, a mouse, and the like for capturing various instructions from the examiner when an operation is performed by the examiner. The operation unit 76 is used to input an image size (resolution) of the external terminal (details will be described later).

  The control unit 70 controls the display of the monitor 75 of the ophthalmologic photographing apparatus 1 and is analyzed by, for example, an operation screen for operating the ophthalmic photographing unit 10, image data acquired by the ophthalmic photographing unit 10, and the ophthalmic analyzing unit 20. The analysis results are displayed on the screen of the monitor 75. These data do not necessarily have to be displayed on the same screen, and may be appropriately displayed according to the examiner's operation.

  The memory 72 stores various control programs for controlling the operation of each unit of the ophthalmologic photographing apparatus 1. The memory 72 stores an image analysis program, an image conversion program, and the like. The memory 72 stores image data including a tomographic image (tomographic image) associated with the front image (frontal image) acquired by the ophthalmic photographing unit 10 of the ophthalmic photographing apparatus.

  Here, the image change function (resolution change) of the ophthalmologic analyzer 20 will be described. When the resolution of the image acquired by the ophthalmic imaging apparatus 1 and the resolution of the monitor 31 of the external terminal 30 are different, the control unit 70 determines the resolution of the tomographic image acquired by the ophthalmic imaging unit 10 of the monitor 31 of the external terminal 30. Change to resolution. In the present embodiment, the resolution means the number of pixels (dots) constituting a captured image of the eye to be examined, and is usually represented by a product of length and width (for example, 1024 × 768).

  For example, the resolution changing process is performed using image processing by a bilinear interpolation method. When the resolution is changed, the pixel at each position on the image is changed. The bilinear interpolation method is used to determine the pixel of the image after the resolution change when the resolution is changed.

  FIG. 3 is a diagram illustrating the bilinear interpolation method. The bilinear interpolation method is a method of obtaining the pixel value I (A ′, B ′) by synthesizing four neighboring pixel values around the position (A ′, B ′) for obtaining the pixel value. Weighting is performed according to the distance from each point of interest, and synthesis is performed.

  I (A ′, B ′) is obtained by the following equation. In the following expression, the four points in the vicinity of (A ′, B ′) are (A, B), (A + 1, B), (A, B + 1), and (A + 1, B + 1), respectively. The distance in the X direction from (A, B) to (A ′, B ′) is a, and the distance in the Y direction is b.

これによって、位置（Ａ'，Ｂ'）の画素値Ｉ（Ａ'，Ｂ'）を取得することができる。

Thereby, the pixel value I (A ′, B ′) at the position (A ′, B ′) can be acquired.

  When the resolution is changed, the changed pixel value is determined from the correspondence between the images before and after the change. Hereinafter, a method for making the images before and after the resolution change correspond will be described.

  FIG. 4 is a diagram for explaining the correspondence between images before and after the resolution change. Image A shows an image before resolution change. Image B shows the image after the resolution change. For example, the image B is an image obtained by reducing the resolution of the image A to N / M size. The pixel value at each position of the image after the resolution change is determined with reference to the pixel value of the image before the resolution change. That is, the pixel value at the position corresponding to the predetermined position after the resolution change is determined on the image before the resolution change, and the determined pixel value is applied as the pixel value at the predetermined position of the image after the resolution change.

  For example, a predetermined position in the image A is (A ′, B ′). In the image B, a position corresponding to a predetermined position (A ′, B ′) in the image A is (a, b). At this time, the position (A ′, B ′) of the image A is indicated by (a, b) of the image B as follows.

これによって、（Ａ'，Ｂ'）＝（Ｍａ／Ｎ，Ｍｂ／Ｎ）と表わされる。そして、画像Ａにおける所定位置（Ａ'，Ｂ'）の４つの近傍の画素より、画像Ｂにおける位置（ａ，ｂ）の画素を決定することができる。すなわち、画像Ａで求められたＩ（Ａ'，Ｂ'）が画像ＢのＩ（ａ，ｂ）となる。

Thus, (A ′, B ′) = (Ma / N, Mb / N). The pixel at the position (a, b) in the image B can be determined from the four neighboring pixels at the predetermined position (A ′, B ′) in the image A. That is, I (A ′, B ′) obtained from the image A becomes I (a, b) of the image B.

  FIG. 5 is a flowchart showing the control operation of the control unit 70. Hereinafter, a control operation for changing the resolution of the image data of the control unit 70 will be described using a flowchart.

  When the operation unit 76 is operated by the examiner and the photographing switch is selected, the control unit 70 outputs a trigger signal for starting photographing to the ophthalmic photographing unit 10 to photograph the fundus. Image data of the photographed fundus image (tomographic image and front image) is stored in the memory 72. Note that the fundus is photographed by operating the operation unit 76, but the present invention is not limited to this. A front image and a tomographic image may be acquired by a photographing switch (not shown) provided in the ophthalmic photographing unit 10.

  Here, when the photographed image is observed on the external terminal 30, the examiner operates the operation unit 76 and inputs the resolution of the external terminal 30. Next, the examiner operates the operation unit 76, selects an image to be transferred to the external terminal 30, and selects a transfer switch (not shown). When the examiner selects the transfer switch, the control unit 70 calls the image data of the selected image from the memory 72 and creates a diagnostic report image (observation image).

  FIG. 6 is a diagram illustrating an example of a report image. FIG. 6A shows the display of the report image on the external terminal when the image data before the resolution change is transferred to the external terminal. FIG. 6B shows the display of the report image on the external terminal when the image data after the resolution change is transferred to the external terminal. For example, as a report image, a map (hereinafter referred to as a thickness map) M that shows the layer thickness on the fundus two-dimensionally and a map (hereinafter referred to as a numerical map) P that displays the layer thickness numerically are displayed. For example, the thickness map M is displayed superimposed on the fundus front image. At this time, since the tomographic image and the fundus front image are matched, the fundus front image and the thickness map M can be associated with each other.

  After creating the report image, the control unit 70 changes the image data to the resolution of the input external terminal. That is, the control unit 70 changes the resolution of the image data so as to correspond to the resolution of the monitor 31 of the external terminal 30. As the resolution changing process, the control unit 70 reduces the resolution and changes the pixel value by the bilinear interpolation method.

  In the present embodiment, the resolution of the external terminal 30 is input before transfer by operating the operation unit 76, but the present invention is not limited to this. The timing for inputting the resolution of the monitor 31 of the external terminal 30 may be any timing as long as the resolution is not changed. For example, the resolution of the monitor 31 of the external terminal 30 may be set in advance.

  After changing the resolution of the image data, the control unit 70 outputs the image data to the external terminal 30 and performs transfer. When the CPU (not shown) of the external terminal 30 receives the image data transferred from the control unit 70, the CPU displays the image data on the monitor 31 of the external terminal 30.

  As described above, since the resolution is automatically changed according to the external terminal of the transfer destination before the transfer of the image data, it is possible to suppress the deterioration of the image quality due to the resolution change (FIG. 6B). )reference). Thereby, even if the resolution of the monitor 31 of the external terminal is small (low), an image with high visibility can be provided.

  In addition, the image data size (capacity) is suppressed by automatically changing the resolution according to the external terminal of the transfer destination before transferring the image data, and when transferring to the external terminal, excess image data Disappears. As a result, the memory usage of the external terminal can be reduced, and more image data can be stored.

  In the above configuration, when a transfer switch is selected, a report image is created and transferred. However, the present invention is not limited to this. The image to be transferred may be configured to transfer a captured tomographic image, fundus front image, and the like. Further, it may be a parameter transfer.

  In the above configuration, the bilinear method is used as the interpolation processing, but the present invention is not limited to this. For example, an interpolation process such as a two-arrest neighbor method or a bicubic method may be used.

  In the above description, the resolution of the external terminal is input. However, the present invention is not limited to this. It is good also as a structure which acquires terminal information from an external terminal and reads the resolution. For example, the terminal information may be read by selecting a transfer switch for image data and automatically reading the terminal information, or by providing a terminal information reading switch and reading by selecting the reading switch. Good.

  The analysis result displayed as the report image is not limited to the above configuration. For example, a difference map indicating a comparison result between a normal eye database (average value database of normal eye layer thickness) and a photographed fundus layer thickness map may be created and displayed. In addition, layer thickness determination, shape determination, size determination of a predetermined part (for example, nipple, macular), and the like are performed to determine normality / abnormality of the fundus of the fundus. And the structure etc. which detect the two-dimensional distribution data regarding the normal / abnormal part of the fundus of the fundus are mentioned. Of course, the analysis result displayed by the examiner may be arbitrarily selected.

  In the above configuration, the image data is changed to the resolution of the transfer destination external terminal. However, another configuration may be provided in which other parameters are changed to the format of the transfer destination external terminal. For example, the color tone may be changed based on the color profile of the transfer destination external terminal. For example, after the gradation of the image data is reduced (changed from 256 gradations to 64 gradations) and the pixel value is determined, the image data is transferred.

  In the above configuration, the fundus imaging apparatus that captures the fundus front image and the fundus tomographic image has been described as an example, but the present invention is not limited thereto. For example, the present invention can also be applied to an anterior segment imaging device that captures an anterior segment front image and an anterior segment tomogram.

  Note that the above configuration is not limited to the apparatus described in this embodiment. For example, ophthalmic imaging software (program) that performs the functions of the above embodiments is supplied to a system or apparatus via a network or various storage media. A computer of the system or apparatus (for example, a CPU) can also read and execute the program.

  In the above configuration, the ophthalmologic photographing apparatus for photographing the eye to be examined has been described as an example. However, the present invention is not limited to this. The present invention is also applicable to a medical image photographing apparatus provided with photographing means for photographing a living body (for example, a heart, a blood vessel, etc.). As the imaging means, for example, a configuration in which a medical image of a predetermined part of a subject is obtained using at least one of light, ultrasonic waves, magnetism, radiation, and X-rays can be considered.

  For example, the image forming means processes a medical image related to a predetermined part of the subject and forms image data including an analysis map indicating the analysis result of the predetermined part. The image changing unit changes the resolution of the image data including the analysis map formed by the image forming unit. As the analysis map, a color map that expresses the analysis result in color and a numerical map that expresses the analysis result in numerical values are conceivable.

  The image forming unit may process medical images related to a plurality of predetermined parts to form image data including a plurality of medical images related to the predetermined parts. The image changing unit changes the resolution of the image data formed by the image forming unit.

  Regarding application of the present invention to a medical imaging apparatus, the problem solving means used in the ophthalmic imaging apparatus (for example, a portion described as the problem solving means) can be applied to the medical imaging apparatus. .

It is a figure explaining an example of the ophthalmologic imaging device concerning a present Example. It is a block diagram explaining the structure of an ophthalmology analysis part. It is a figure explaining a bilinear interpolation method. It is a figure explaining the correspondence between the images before and after the resolution change. It is a flowchart which shows the control action of a control part. It is a figure which shows an example of a report image.

DESCRIPTION OF SYMBOLS 1 Ophthalmology imaging device 10 Ophthalmology imaging | photography part 20 Ophthalmology analysis part 30 External terminal 31 Monitor 32 CPU
33 Storage Device 70 Control Unit 72 Memory 75 Monitor 76 Operation Unit

Claims (10)

A photographing optical system for photographing the eye to be examined;
In an ophthalmologic photographing apparatus comprising: an operation screen of the photographing optical system; and a first display unit that displays an image of the eye to be examined acquired by the photographing optical system.
Image output means for outputting image data obtained by the ophthalmologic photographing apparatus via a network toward an external terminal having the second display means different from the first display means;
Image changing means for changing the resolution of the image data in order to output the image data having a resolution adapted to the resolution of the second display means by the image output means;
An ophthalmologic photographing apparatus comprising: The ophthalmologic photographing apparatus according to claim 1.
Setting means for setting resolution information of the second display means;
The ophthalmologic photographing apparatus, wherein the image changing unit changes the resolution of the image data based on the resolution information set by the setting unit. In the ophthalmologic photographing apparatus according to claim 1 or 2,
Image forming means for processing the image of the eye to be examined and forming image data including an analysis map indicating an analysis result of the eye to be examined;
The ophthalmologic photographing apparatus, wherein the image changing unit changes a resolution of image data including the analysis map formed by the image forming unit. In the ophthalmologic photographing apparatus according to claim 1 or 2,
Image forming means for processing a plurality of images of the eye to be examined and forming image data including a plurality of images of the eye to be examined;
The ophthalmologic photographing apparatus, wherein the image changing unit changes a resolution of the image data formed by the image forming unit. In the ophthalmologic photographing apparatus according to any one of claims 1 to 4,
The image changing means further adjusts the color tone of the image data so that the output means outputs the image data having a color tone corresponding to the color profile of the second display means. . In the ophthalmologic photographing apparatus according to any one of claims 1 to 5,
The ophthalmic imaging apparatus, wherein the imaging optical system is an interference optical system for acquiring a tomographic image of the eye to be examined by detecting an interference state between the measurement light from the eye to be examined and the reference light. The ophthalmologic photographing apparatus according to claim 6,
The image forming means processes the tomographic image of the eye to be examined acquired by the interference optical system to obtain thickness information regarding a predetermined part of the eye to be examined.
Based on the thickness information, a color map that expresses thickness information at each position related to a predetermined part of the eye to be examined in color, and a numerical map that expresses thickness information at each position related to the predetermined part of the eye to be examined numerically. An ophthalmologic photographing apparatus characterized by forming image data including an analysis map having at least one of them. In the ophthalmologic photographing apparatus according to any one of claims 1 to 7,
An ophthalmologic photographing apparatus, wherein the resolution of the image data acquired by the ophthalmic photographing apparatus is larger than the resolution of the second display means of the external terminal. In the ophthalmologic photographing apparatus according to any one of claims 1 to 8,
Output means for outputting a trigger signal for starting output of the image data to an external terminal, and
The image changing means changes the resolution of the image data based on the trigger signal,
The ophthalmologic photographing apparatus characterized in that the image output means outputs the image data to an external terminal after the resolution of the image data is changed by the image changing means. A photographing optical system for photographing the eye to be examined;
In an ophthalmic imaging program to be executed by a computer of an ophthalmologic imaging apparatus comprising: an operation screen of the imaging optical system; and a first display unit that displays an image of an eye to be examined acquired by the imaging optical system.
An image output step of outputting image data obtained by the ophthalmologic photographing apparatus via a network toward an external terminal having second display means different from the first display means;
An image changing step for changing the resolution of the image data in order to output the image data having a resolution adapted to the resolution of the second display means by the image output step;
Is executed by the computer of the ophthalmologic imaging apparatus.

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