Patents by Inventor Peshala V. Pahalawatta
Peshala V. Pahalawatta 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: 10798412Abstract: Encoding and decoding architectures for 3D video delivery are described, such as 2D compatible 3D video delivery and frame compatible 3D video delivery. The architectures include pre-processing stages to pre-process the output of a base layer video encoder and/or decoder and input the pre-processed output into an enhancement layer video encoder and/or decoder of one or more enhancement layers. Multiplexing methods of how to combine the base and enhancement layer videos are also described.Type: GrantFiled: June 18, 2018Date of Patent: October 6, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Peshala V. Pahalawatta, Athanasios Leontaris, Kevin J. Stec, Walter J. Husak
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Publication number: 20200228838Abstract: An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.Type: ApplicationFiled: March 26, 2020Publication date: July 16, 2020Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Alexandros TOURAPIS, Athanasios LEONTARIS, Peshala V. PAHALAWATTA, Kevin J. STEC
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Patent number: 10701397Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: GrantFiled: June 4, 2019Date of Patent: June 30, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Patent number: 10609413Abstract: An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.Type: GrantFiled: January 29, 2019Date of Patent: March 31, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Athanasios Leontaris, Peshala V. Pahalawatta, Kevin J. Stec
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Patent number: 10531120Abstract: The present disclosure describes a system and method for multi-layered image and video delivery using reference processing signal. A multi-layered encoder and a multi-layered decoder, both comprising at least one enhancement layer processor that uses reference processing and a base layer processor are provided. A multi-layered encoder and a multi-layered decoder that use reference processing and are capable of frame-compatible 3D video delivery are also described.Type: GrantFiled: July 15, 2016Date of Patent: January 7, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Peshala V. Pahalawatta, Alexandros Tourapis, Walter J. Husak
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Publication number: 20190373288Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: ApplicationFiled: June 4, 2019Publication date: December 5, 2019Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Publication number: 20190273904Abstract: An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.Type: ApplicationFiled: January 29, 2019Publication date: September 5, 2019Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Alexandros TOURAPIS, Athanasios LEONTARIS, Peshala V. PAHALAWATTA, Kevin J. STEC
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Patent number: 10382788Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: GrantFiled: November 30, 2017Date of Patent: August 13, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Patent number: 10362334Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: GrantFiled: November 30, 2017Date of Patent: July 23, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Patent number: 10237549Abstract: A method for adaptive streaming of video data over a network is disclosed. The method includes receiving, by one or more decoders of a video streaming client, first video information of a video data stream with one or more operations of first complexity. The method further includes obtaining client-related information based at least in part on a decoding capability of the video streaming client related to decoding the first video information with the one or more operations of the first complexity by the one or more decoders. The method also includes using, by the video streaming client, the client-related information to cause the video streaming from the video streaming server to the video streaming client to be adapted to a different overall bit rate and based at least in part on the client-related information.Type: GrantFiled: June 10, 2016Date of Patent: March 19, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Yuwen He, Alexandros Tourapis, Peshala V. Pahalawatta, Athanasios Leontaris
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Publication number: 20190068947Abstract: Multi-layered frame-compatible video delivery is described. Multi-layered encoding and decoding methods, comprising a base layer and at least one enhancement layer with reference processing, are provided. In addition, multi-layered encoding and decoding methods with inter-layer dependencies are described. Encoding and decoding methods that are capable of frame-compatible 3D video delivery are also described.Type: ApplicationFiled: October 24, 2018Publication date: February 28, 2019Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Athanasios LEONTARIS, Alexandros TOURAPIS, Peshala V. PAHALAWATTA, Kevin STEC, Walter HUSAK
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Patent number: 10194172Abstract: An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.Type: GrantFiled: August 16, 2017Date of Patent: January 29, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Athanasios Leontaris, Peshala V. Pahalawatta, Kevin J. Stec
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Patent number: 10142611Abstract: Multi-layered frame-compatible video delivery is described. Multi-layered encoding and decoding methods, comprising a base layer and at least one enhancement layer with reference processing, are provided. In addition, multi-layered encoding and decoding methods with inter-layer dependencies are described. Encoding and decoding methods that are capable of frame-compatible 3D video delivery are also described.Type: GrantFiled: September 7, 2016Date of Patent: November 27, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Athanasios Leontaris, Alexandros Tourapis, Peshala V. Pahalawatta, Kevin Stec, Walter Husak
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Publication number: 20180310023Abstract: Encoding and decoding architectures for 3D video delivery are described, such as 2D compatible 3D video delivery and frame compatible 3D video delivery. The architectures include pre-processing stages to pre-process the output of a base layer video encoder and/or decoder and input the pre-processed output into an enhancement layer video encoder and/or decoder of one or more enhancement layers. Multiplexing methods of how to combine the base and enhancement layer videos are also described.Type: ApplicationFiled: June 18, 2018Publication date: October 25, 2018Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Alexandros TOURAPIS, Peshala V. PAHALAWATTA, Athanasios LEONTARIS, Kevin J. STEC, Walter J. HUSAK
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Patent number: 10038916Abstract: Encoding and decoding architectures for 3D video delivery are described, such as 2D compatible 3D video delivery and frame compatible 3D video delivery. The architectures include pre-processing stages to pre-process the output of a base layer video encoder and/or decoder and input the pre-processed output into an enhancement layer video encoder and/or decoder of one or more enhancement layers. Multiplexing methods of how to combine the base and enhancement layer videos are also described.Type: GrantFiled: August 11, 2017Date of Patent: July 31, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Peshala V. Pahalawatta, Athanasios Leontaris, Kevin J. Stec, Walter J. Husak
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Publication number: 20180213256Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: ApplicationFiled: November 30, 2017Publication date: July 26, 2018Inventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Publication number: 20180084278Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: ApplicationFiled: November 30, 2017Publication date: March 22, 2018Inventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Patent number: 9877047Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: GrantFiled: April 23, 2015Date of Patent: January 23, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Patent number: 9877046Abstract: Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.Type: GrantFiled: February 4, 2015Date of Patent: January 23, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Walter J. Husak, Peshala V. Pahalawatta, Athanasios Leontaris
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Patent number: 9877045Abstract: A device includes a coder or a codec configured for interleaved image data utilizing diamond shaped blocks for motion estimation and/or motion compensation and utilizing square or orthogonal transforms of residual data. In various embodiments, the decoder may be configured, among others, to perform de-blocking on edges of the diamond shaped blocks and/or data padding at boundaries of the image data.Type: GrantFiled: November 24, 2015Date of Patent: January 23, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Alexandros Tourapis, Athanasios Leontaris, Peshala V. Pahalawatta