Patents by Inventor Derek Pang
Derek Pang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10567464Abstract: A video stream of a scene for a virtual reality or augmented reality experience may be captured by one or more image capture devices. Data from the video stream may be retrieved, including base vantage data with base vantage color data depicting the scene from a base vantage location, and target vantage data with target vantage color data depicting the scene from a target vantage location. The base vantage data may be reprojected to the target vantage location to obtain reprojected target vantage data. The reprojected target vantage data may be compared with the target vantage data to obtain residual data. The residual data may be compressed by removing a subset of the residual data that is likely to be less viewer-discernable than a remainder of the residual data. A compressed video stream may be stored, including the base vantage data and the compressed residual data.Type: GrantFiled: December 5, 2017Date of Patent: February 18, 2020Assignee: GOOGLE LLCInventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Patent number: 10546424Abstract: A virtual reality or augmented reality experience of a scene may be presented to a viewer using layered data retrieval and/or processing. A first layer of a video stream may be retrieved, and a first viewer position and/or orientation may be received. The first layer may be processed to generate first viewpoint video of the scene from a first virtual viewpoint corresponding to the first viewer position and/or orientation. The first viewpoint video may be displayed for the viewer. Then, a second layer of the video stream may be retrieved, and a second viewer position and/or orientation may be received. The second layer may be processed to generate second viewpoint video of the scene from a second virtual viewpoint corresponding to the second viewer position and/or orientation, with higher quality than the first viewpoint video. The second viewpoint video may be displayed for the viewer.Type: GrantFiled: October 11, 2017Date of Patent: January 28, 2020Assignee: GOOGLE LLCInventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Patent number: 10469873Abstract: A virtual reality or augmented reality experience of a scene may be decoded for playback for a viewer through a combination of CPU and GPU processing. A video stream may be retrieved from a data store. A first viewer position and/or orientation may be received from an input device, such as the sensor package on a head-mounted display (HMD). At a processor, the video stream may be partially decoded to generate a partially-decoded bitstream. At a graphics processor, the partially-decoded bitstream may be further decoded to generate viewpoint video of the scene from a first virtual viewpoint corresponding to the first viewer position and/or orientation. The viewpoint video may be displayed on a display device, such as screen of the HMD.Type: GrantFiled: October 11, 2017Date of Patent: November 5, 2019Assignee: Google LLCInventors: Derek Pang, Colvin Pitts, Kurt Akeley, Zeyar Htet
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Patent number: 10440407Abstract: A combined video of a scene may be generated for applications such as virtual reality or augmented reality. In one method, a data store may store video data with a first portion having a first importance metric, and a second portion having a second importance metric, denoting that viewing of the first portion is more likely and/or preferential to viewing of the second portion. The subset may be retrieved and used to generate viewpoint video from a virtual viewpoint corresponding to a viewer's viewpoint. The viewpoint video may be displayed on a display device. One of storing the video data, retrieving the subset, and using the subset to generate the viewpoint video may include, based on the difference between the first and second importance metrics, expediting and/or enhancing performance of the step for the first portion, relative to the second portion.Type: GrantFiled: May 9, 2017Date of Patent: October 8, 2019Assignee: GOOGLE LLCInventors: Alex Song, Derek Pang, Mike Ma, Nikhil Karnad
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Patent number: 10419737Abstract: A video stream for a scene for a virtual reality or augmented reality experience may be stored and delivered to a viewer. The video stream may be divided into a plurality of units based on time segmentation, viewpoint segmentation, and/or view orientation segmentation. Each of the units may be divided into a plurality of sub-units based on a different segmentation from the units, via time segmentation, viewpoint segmentation, and/or view orientation segmentation. At least a portion of the video stream may be stored in a file that includes a plurality of the units. Each unit may be a group of pictures that is a sequence of successive frames in time. Each sub-unit may be a vantage defining a viewpoint from which the scene is viewable. Each vantage may be further divided into tiles, each of which is part of the vantage, limited to one or more particular view orientations.Type: GrantFiled: September 15, 2017Date of Patent: September 17, 2019Assignee: GOOGLE LLCInventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Patent number: 10341632Abstract: An environment may be displayed from a viewpoint. According to one method, volumetric video data may be acquired depicting the environment, for example, using a tiled camera array. A plurality of vantages may be distributed throughout a viewing volume from which the environment is to be viewed. The volumetric video data may be used to generate video data for each vantage, representing the view of the environment from that vantage. User input may be received designating a viewpoint within the viewing volume. From among the plurality of vantages, a subset nearest to the viewpoint may be identified. The video data from the subset may be retrieved and combined to generate viewpoint video data depicting the environment from the viewpoint. The viewpoint video data may be displayed for the viewer to display a view of the environment from the viewpoint selected by the user.Type: GrantFiled: May 9, 2017Date of Patent: July 2, 2019Inventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Publication number: 20180332317Abstract: A combined video of a scene may be generated for applications such as virtual reality or augmented reality. In one method, a data store may store video data with a first portion having a first importance metric, and a second portion having a second importance metric, denoting that viewing of the first portion is more likely and/or preferential to viewing of the second portion. The subset may be retrieved and used to generate viewpoint video from a virtual viewpoint corresponding to a viewer's viewpoint. The viewpoint video may be displayed on a display device. One of storing the video data, retrieving the subset, and using the subset to generate the viewpoint video may include, based on the difference between the first and second importance metrics, expediting and/or enhancing performance of the step for the first portion, relative to the second portion.Type: ApplicationFiled: May 9, 2017Publication date: November 15, 2018Inventors: Alex Song, Derek Pang, Mike Ma, Nikhil Karnad
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Publication number: 20180097867Abstract: A video stream of a scene for a virtual reality or augmented reality experience may be captured by one or more image capture devices. Data from the video stream may be retrieved, including base vantage data with base vantage color data depicting the scene from a base vantage location, and target vantage data with target vantage color data depicting the scene from a target vantage location. The base vantage data may be reprojected to the target vantage location to obtain reprojected target vantage data. The reprojected target vantage data may be compared with the target vantage data to obtain residual data. The residual data may be compressed by removing a subset of the residual data that is likely to be less viewer-discernable than a remainder of the residual data. A compressed video stream may be stored, including the base vantage data and the compressed residual data.Type: ApplicationFiled: December 5, 2017Publication date: April 5, 2018Inventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Publication number: 20180089903Abstract: A virtual reality or augmented reality experience of a scene may be presented to a viewer using layered data retrieval and/or processing. A first layer of a video stream may be retrieved, and a first viewer position and/or orientation may be received. The first layer may be processed to generate first viewpoint video of the scene from a first virtual viewpoint corresponding to the first viewer position and/or orientation. The first viewpoint video may be displayed for the viewer. Then, a second layer of the video stream may be retrieved, and a second viewer position and/or orientation may be received. The second layer may be processed to generate second viewpoint video of the scene from a second virtual viewpoint corresponding to the second viewer position and/or orientation, with higher quality than the first viewpoint video. The second viewpoint video may be displayed for the viewer.Type: ApplicationFiled: October 11, 2017Publication date: March 29, 2018Inventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Publication number: 20180035134Abstract: A virtual reality or augmented reality experience of a scene may be decoded for playback for a viewer through a combination of CPU and GPU processing. A video stream may be retrieved from a data store. A first viewer position and/or orientation may be received from an input device, such as the sensor package on a head-mounted display (HMD). At a processor, the video stream may be partially decoded to generate a partially-decoded bitstream. At a graphics processor, the partially-decoded bitstream may be further decoded to generate viewpoint video of the scene from a first virtual viewpoint corresponding to the first viewer position and/or orientation. The viewpoint video may be displayed on a display device, such as screen of the HMD.Type: ApplicationFiled: October 11, 2017Publication date: February 1, 2018Inventors: Derek Pang, Colvin Pitts, Kurt Akeley, Zeyar Htet
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Publication number: 20180020204Abstract: A video stream for a scene for a virtual reality or augmented reality experience may be stored and delivered to a viewer. The video stream may be divided into a plurality of units based on time segmentation, viewpoint segmentation, and/or view orientation segmentation. Each of the units may be divided into a plurality of sub-units based on a different segmentation from the units, via time segmentation, viewpoint segmentation, and/or view orientation segmentation. At least a portion of the video stream may be stored in a file that includes a plurality of the units. Each unit may be a group of pictures that is a sequence of successive frames in time. Each sub-unit may be a vantage defining a viewpoint from which the scene is viewable. Each vantage may be further divided into tiles, each of which is part of the vantage, limited to one or more particular view orientations.Type: ApplicationFiled: September 15, 2017Publication date: January 18, 2018Inventors: Derek Pang, Colvin Pitts, Kurt Akeley
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Publication number: 20170244948Abstract: An environment may be displayed from a viewpoint. According to one method, volumetric video data may be acquired depicting the environment, for example, using a tiled camera array. A plurality of vantages may be distributed throughout a viewing volume from which the environment is to be viewed. The volumetric video data may be used to generate video data for each vantage, representing the view of the environment from that vantage. User input may be received designating a viewpoint within the viewing volume. From among the plurality of vantages, a subset nearest to the viewpoint may be identified. The video data from the subset may be retrieved and combined to generate viewpoint video data depicting the environment from the viewpoint. The viewpoint video data may be displayed for the viewer to display a view of the environment from the viewpoint selected by the user.Type: ApplicationFiled: May 9, 2017Publication date: August 24, 2017Inventors: Derek Pang, Colvin Pitts, Kurt Akeley