# US 10,484,671 B2 · Method for displaying a content from 4D light field data > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,484,671 B2 - Document ID: US10484671B2 - Status: Granted - Kind: B2 - Application number: 15/168,003 - Filed: 2016-05-28 - Published: 2016-12-01 - Granted: 2019-11-19 - Earliest claimed: 2015-05-29 - Assignees: InterDigital CE Patent Holdings, SAS - Applicants: Thomson Licensing - Inventors: Marc Eluard; Antoine Monsifrot; Olivier Heen - Web page: https://patentgrep.com/patent/US10484671B2 ## CPC - H04N 13/302: for viewing without the aid of special glasses, i.e. using autostereoscopic displays - G06T 5/70: Denoising; Smoothing - H04N 21/23439: {for generating different versions} - H04N 21/2541: {Rights Management (protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08)} - H04N 21/25435: {involving characteristics of content or additional data, e.g. video resolution or the amount of advertising} - H04N 21/4318: {by altering the content in the rendering process, e.g. blanking, blurring or masking an image region (image enhancement or restoration in general G06T5/00)} - H04N 21/4627: Rights management {associated to the content (security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08)} - H04N 21/816: {involving special video data, e.g 3D video} - H04N 21/8453: {by locking or enabling a set of features, e.g. optional functionalities in an executable program} - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract A method for displaying a content from 4D light field data is described. Such method is executed by an electronic device, and is remarkable in that it comprises changing point of view of the content and/or a focus plane associated with the content, according to viewing rights. ## Claims ### Claim 1 A method for protecting a displaying of a content from a 4D light field data, the method being executed by an electronic device, the method comprises: obtaining said 4D light-field data as well as viewing rights, sending said content for displaying and changing point of view of said content or a focus plane associated with said content, according to said viewing rights associated with a degradation level. ### Claim 2 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein said changing said point of view of said content or said focus plane associated with said content is done randomly in time. ### Claim 3 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein said changing said point of view of said content or said changing of said focus plane associated with said content is done based on a random spatial point of a scene associated with the 4D light field data. ### Claim 4 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein said changing further comprises blurring at least part of said content. ### Claim 5 (depends on 4) The method for protecting the displaying of the content according to claim 4, wherein said blurring comprises adding Gaussian blur to said content. ### Claim 6 (depends on 4) The method for protecting the displaying of the content according to claim 4, wherein said blurring is done randomly in time. ### Claim 7 (depends on 4) The method for protecting the displaying of the content according to claim 4, wherein said blurring is a spatial blurring of said content that is done randomly. ### Claim 8 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein said content is the 4D light field data. ### Claim 9 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein said content is a 2D image or 2D video. ### Claim 10 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein said content is a 3D content or multiviews content. ### Claim 11 (depends on 1) The method for protecting the displaying of the content according to claim 1, wherein a difference value between consecutive changed points of views of said content or consecutive changed focus planes is defined as a function of said viewing rights associated with the degradation level. ### Claim 12 A non-transitory computer-readable storage medium storing a computer program comprising a set of computer-executable instructions that when said instructions are executed on a processor causes the processor to perform a method for protecting a displaying of a content from a 4D light field data, the method comprises obtaining said 4D light-field data as well as viewing rights, sending said content for displaying, and changing point of view of said content or a focus plane associated with said content, according to said viewing rights associated with a degradation level. ### Claim 13 A display device for protecting a displaying of a content from a 4D light field data, the display device comprising a processor configured to obtain said 4D light-field data as well as viewing rights, sending said content for displaying and change point of view of said content or a focus plane associated with said content, according to viewing rights associated with a degradation level. ### Claim 14 (depends on 13) The display device for protecting the displaying of the content according to claim 13, wherein said changing said point of view of said content or said focus plane associated with said content is done randomly in time. ### Claim 15 (depends on 13) The display device for protecting the displaying of the content according to claim 13, wherein said changing said point of view of said content or said changing of said focus plane associated with said content is done based on a random spatial point of a scene associated with the 4D light field data. ### Claim 16 A device for protecting a displaying of a content from a 4D light field data, the device comprising: a processor for obtaining said 4D light-field data as well as viewing rights, sending said content for displaying and changing point of view of said content or a focus plane associated with said content, according to said viewing rights associated with a degradation level. ### Claim 17 (depends on 16) The device of claim 16, wherein said changing said point of view of said content or said focus plane associated with said content is done randomly in time. ### Claim 18 (depends on 17) The device of claim 17, wherein said changing said point of view of said content or said changing of said focus plane associated with said content is done based on a random spatial point of a scene associated with the 4D light field data. ### Claim 19 (depends on 16) The device of claim 16, wherein said changing further comprises blurring at least part of said content. ### Claim 20 (depends on 16) The device of claim 16, wherein a difference value between consecutive changed points of views of said content or consecutive changed focus planes is defined as a function of said viewing rights associated with the degradation level.