# US 11,026,570 B2 · Information processing apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,026,570 B2 - Document ID: US11026570B2 - Status: Granted - Kind: B2 - Application number: 16/124,724 - Filed: 2018-09-07 - Published: 2019-01-03 - Granted: 2021-06-08 - Earliest claimed: 2016-03-11 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Kazutoshi Machida; Yukio Sakagawa - Web page: https://patentgrep.com/patent/US11026570B2 ## CPC - A61B 3/0025: {characterised by electronic signal processing, e.g. eye models} - A61B 3/0058: {for multiple images} - A61B 3/10: Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions - A61B 3/102: {for optical coherence tomography [OCT]} - A61B 3/1233: {for measuring blood flow, e.g. at the retina} - A61B 2090/364: {Correlation of different images or relation of image positions in respect to the body} - A61B 2090/3735: {Optical coherence tomography [OCT]} - A61B 2576/00: Medical imaging apparatus involving image processing or analysis (A61B1/00009, A61B6/52 and A61B8/52 take precedence) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An information processing apparatus includes a first acquisition portion acquiring a front image of an eye fundus, a second acquisition portion acquiring an En-Face image on the basis of a plurality of tomographic images of the eye fundus, and a display control portion controlling a display unit to display the En-Face image in a superimposed relation to the front image. The display control portion changes a depth range, at the eye fundus, of the En-Face image superimposed on the front image. ## Claims ### Claim 1 An information processing apparatus comprising: a first acquisition portion acquiring a front image of an eye fundus; a second acquisition portion acquiring an En-Face image on basis of a plurality of tomographic images of the eye fundus; and a display control portion controlling a display unit to display the En-Face image in a superimposed relation to the front image and two boundary lines in a superimposed relation to the tomographic image, wherein a depth range of the En-Face image is defined by the two boundary lines, and wherein the display control portion changes a depth range, at the eye fundus, of the En-Face image superimposed on the front image by moving each of the two boundary lines on the tomographic image. ### Claim 2 (depends on 1) The information processing apparatus according to claim 1, wherein the En-Face image is an OCTA En-Face image. ### Claim 3 (depends on 2) The information processing apparatus according to claim 2, wherein the display control portion controls the display unit to display the OCTA En-Face image different in depth range at the eye fundus in each of regions of the front image. ### Claim 4 (depends on 1) The information processing apparatus according to claim 1, wherein the display control portion controls the display unit to display another En-Face image different in size from the En-Face image superimposed on the front image, and the display control portion changes the depth range, at the eye fundus, of the En-Face image superimposed on the front image in conjunction with a depth range, at the eye fundus, of the other En-Face image different in size from the En-Face image superimposed on the front image. ### Claim 5 (depends on 4) The information processing apparatus according to claim 4, wherein the display control portion controls the display unit to display the other En-Face image not in a superimposed relation to the front image in a larger size than the En-Face image superimposed on the front image. ### Claim 6 (depends on 5) The information processing apparatus according to claim 5, wherein the display control portion controls the display unit to display the front image and the other En-Face image having a larger size than the En-Face image superimposed on the front image side by side. ### Claim 7 (depends on 1) The information processing apparatus according to claim 1, wherein the second acquisition portion acquires an intensity En-Face image and an OCTA En-Face image, and the display control portion controls the display unit to display the intensity En-Face image and the OCTA En-Face image in a superimposed relation to the front image at same time. ### Claim 8 (depends on 7) The information processing apparatus according to claim 7, wherein the display control portion controls the display unit to display the intensity En-Face image and the OCTA En-Face image, both the En-Face images being different in depth range at the eye fundus from each other. ### Claim 9 (depends on 7) The information processing apparatus according to claim 7, wherein the display control portion controls the display unit to display the OCTA En-Face image in a superimposed relation to the intensity En-Face image. ### Claim 10 (depends on 1) The information processing apparatus according to claim 1, wherein the display control portion controls the display unit to change a size and a shape of the En-Face image and a position of the En-Face image in the front image. ### Claim 11 (depends on 1) The information processing apparatus according to claim 1, wherein the movement of the boundary line is carried out according to the instructions of the operator. ### Claim 12 An information processing method comprising the steps of: acquiring a front image of an eye fundus and an En-Face image on basis of a plurality of tomographic images of the eye fundus; and controlling a display unit to display the En-Face image in a superimposed relation to the front image and two boundary lines in a superimposed relation to the tomographic image, wherein a depth range of the En-Face image is defined by the two boundary lines, and wherein the display control portion changes the depth range, at the eye fundus, of the En-Face image superimposed on the front image by moving each of the two boundary lines on the tomographic image. ### Claim 13 An information processing apparatus comprising: a first acquisition portion acquiring a front image of an eye fundus; a second acquisition portion acquiring an En-Face image on basis of a plurality of tomographic images of the eye fundus; and a display control portion controlling a display unit to display the En-Face image, the front image and two boundary lines in a superimposed relation to the tomographic image, wherein a depth range of the En-Face image is defined by the two boundary lines, and wherein the display control portion changes a depth range, at the eye fundus, of the En-Face image displayed on the display unit by moving each of the two boundary lines on the tomographic image. ### Claim 14 (depends on 13) The information processing apparatus according to claim 13, wherein the En-Face image is an OCTA En-Face image. ### Claim 15 (depends on 13) The information processing apparatus according to claim 13, wherein the movement of the boundary line is carried out according to instructions of an operator. ### Claim 16 (depends on 13) The information processing apparatus according to claim 13, wherein the display control portion changes a depth position, at the eye fundus, of the En-Face image displayed on the display unit by moving the two boundary lines while maintaining a spacing therebetween. ### Claim 17 (depends on 16) The information processing apparatus according to claim 16, wherein the movement of the two boundary lines is carried out according to instructions of an operator. ### Claim 18 An information processing apparatus comprising: an acquisition portion acquiring an En-Face image on basis of a plurality of tomographic images of an eye fundus; and a display control portion controlling a display unit to display the En-Face image, and two boundary lines in a superimposed relation to the tomographic image, wherein a depth range and a depth position of the En-Face image are defined by the two boundary lines, and wherein the display control portion changes (A) the depth range, at the eye fundus, of the En-Face image displayed on the display unit when each of the two boundary lines on the tomographic image is moved by an operator, (B) the depth position, at the eye fundus, of the En-Face image displayed on the display unit when the two boundary lines while maintaining a spacing therebetween are moved by the operator. ### Claim 19 An information processing method comprising the steps of: acquiring a front image of an eye fundus and an En-Face image on basis of a plurality of tomographic images of the eye fundus; and controlling a display unit to display the En-Face image, the front image and two boundary lines in a superimposed relation to the tomographic image, wherein a depth range of the En-Face image is defined by the two boundary lines, and whe the display control portion changes the depth range, at the eye fundus, of the En-Face image displayed on the display unit by moving each of the two boundary lines on the tomographic image. ### Claim 20 An information processing method comprising the steps of: acquiring an En-Face image on basis of a plurality of tomographic images of an eye fundus; and controlling a display unit to display the En-Face image and two boundary lines in a superimposed relation to the tomographic image, wherein a depth range and a depth position of the En-Face image are defined by the two boundary lines, and wherein the display control portion changes (A) the depth range, at the eye fundus, of the En-Face image displayed on the display unit when each of the two boundary lines on the tomographic image is moved by an operator, (B) the depth position, at the eye fundus, of the En-Face image displayed on the display unit when the two boundary lines while maintaining a spacing therebetween are moved by the operation.