# US 12,764,266 B2 · Electronic device and control method of electronic device that convert a first video in a first display mode to a second video in a second display mode > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,764,266 B2 - Document ID: US12764266B2 - Status: Granted - Kind: B2 - Application number: 19/004,601 - Filed: 2024-12-30 - Published: 2025-07-24 - Granted: 2026-10-13 - Earliest claimed: 2024-01-23 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Toma Kitayama; Toru Kobayashi - Web page: https://patentgrep.com/patent/US12764266B2 ## CPC - H04N 13/144: for flicker reduction - G11B 27/031: Electronic editing of digitised analogue information signals, e.g. audio or video signals - H04N 23/683: {performed by a processor, e.g. controlling the readout of an image memory} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) ## Abstract An electronic device converts a first video in a first display mode including a- shooting region representing a result of shooting by an image capturing apparatus to a second- video, which is a video in a second display mode including a plurality of frames. The- electronic device acquires the first video. The electronic device sets invalid regions of the same shape to the same positions in the plurality of frames of the second video. The- electronic device converts the first video so as to set a pixel value representing invalidity to- each of the invalid regions in the plurality of individual frames of the second video and- thereby generates the second video. An electronic device converts a first video in a first display mode including a shooting region representing a result of shooting by an image capturing apparatus to a second video, which is a video in a second display mode including a plurality of frames, the electronic device including processors and/or circuity to acquire the first video and meta data related to a shooting state of the first video, to perform information generation processing of generating, on a basis of the meta data, correction information related to geometrical correction to be performed during generation of the second video, to perform mask generation processing of generating a mask image covering a local region of the second video, and to perform generation processing of generating the second video, to which the mask image is applied to each of the frames, through conversion of the first video on a basis of the correction information. ## Claims ### Claim 1 An electronic device that converts a first video in a first display mode including a shooting region representing a result of shooting by an image capturing apparatus to a second video, which is a video in a second display mode including a plurality of frames, the electronic device comprising one or more processors and/or circuitry configured: to perform acquisition processing of acquiring the first video and meta data related to a shooting state of the first video; to perform information generation processing of generating, on a basis of the meta data, correction information related to geometrical correction to be performed during generation of the second video; to perform mask generation processing of generating a mask image covering a local region of the second video; and to perform generation processing of generating the second video, to which the mask image is applied to each of the frames, through conversion of the first video on a basis of the correction information. ### Claim 2 (depends on 1) The electronic device according to claim 1, wherein the correction information is a maximum value of correction values for the correction performed on all the frames of the first video, and wherein the generation processing includes applying the same mask image to each of all the frames of the second video. ### Claim 3 (depends on 1) The electronic device according to claim 1, wherein the mask image has a first region covering the second video by giving a specific color to the second video and a second region to be displayed without overing the second video. ### Claim 4 (depends on 3) The electronic device according to claim 3, wherein the mask image has, between the first region and the second region, a third region where a brightness of the color given to the second video continuously varies from the first region to the second region. ### Claim 5 (depends on 4) The electronic device according to claim 4, wherein a position of a boundary between the third region and the second region is based on the correction information. ### Claim 6 (depends on 1) The electronic device according to claim 1, wherein, in case when the second video has a specific region that does not have a pixel value according to the shooting region even though the specific region is a region corresponding to the shooting region, the mask image includes a region covering the specific region. ### Claim 7 (depends on 1) The electronic device according to claim 1, wherein the first video has regions of at least two circular fisheye images, wherein the second video has respective equirectangular projection images corresponding to the at least two circular fisheye images, and wherein the mask image has a region covering a peripheral portion of each of the equirectangular projection images. ### Claim 8 (depends on 1) The electronic device according to claim 1, wherein the first video has a region reflecting an optical system that acquires the shooting region, and wherein the mask image has a region in the second video which covers a region corresponding to the region reflecting the optical system. ### Claim 9 (depends on 1) The electronic device according to claim 1, wherein the meta data includes at least any of information related to a design value of an optical system that acquires the shooting region, information related to a deviation of a real value of the optical system from the design value, time-series information related to an orientation of the optical system, and information related to relative positions of at least two image circles in case when the shooting region has the at least two image circles. ### Claim 10 (depends on 1) The electronic device according to claim 1, wherein the generation processing includes generating, on a basis of the correction information, the second video by acquiring a pixel value of a coordinate in the first video corresponding to each coordinate in the second video. ### Claim 11 (depends on 1) The electronic device according to claim 1, wherein the mask generation processing includes generating, on a basis of the correction information, the mask image covering a local region of the second video. ### Claim 12 (depends on 1) The electronic device according to claim 1, wherein the generation processing includes applying, after the second video is generated by converting the first video on a basis of the correction information, the mask image to each of the frames of the second video to cover a local region of the second video. ### Claim 13 A control method of an electronic device that converts a first video in a first display mode including a shooting region representing a result of shooting by an image capturing apparatus to a second video, which is a video in a second display mode including a plurality of frames, the control method comprising: an acquisition step of acquiring the first video and meta data related to a shooting state of the first video; an information generation step of generating, on a basis of the meta data, correction information related to geometrical correction to be performed during generation of the second video; a mask generation step of generating a mask image covering a local region of the second video; and a generation step of generating the second video, to which the mask image is applied to each of the frames, through conversion of the first video on a basis of the correction information. ### Claim 14 A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute a control method of an electronic device that converts a first video in a first display mode including a shooting region representing a result of shooting by an image capturing apparatus to a second video, which is a video in a second display mode including a plurality of frames, the control method comprising: an acquisition step of acquiring the first video and meta data related to a shooting state of the first video; an information generation step of generating, on a basis of the meta data, correction information related to geometrical correction to be performed during generation of the second video; a mask generation step of generating a mask image covering a local region of the second video; and a generation step of generating the second video, to which the mask image is applied to each of the frames, through conversion of the first video on a basis of the correction information.