公开(公告)号：US20140211853A1

公开(公告)日：2014-07-31

申请号：US14242975

申请日：2014-04-02

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Alexandros Tourapis ,  Athanasios Leontaris

IPC: H04N19/577 ,  H04N19/51

CPC classification number: H04N19/139 ,  H04N19/103 ,  H04N19/105 ,  H04N19/152 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/30 ,  H04N19/46 ,  H04N19/521 ,  H04N19/573 ,  H04N19/577 ,  H04N19/583 ,  H04N19/597 ,  H04N19/61

Abstract: Overlapped block disparity estimation and compensation is described. Compensating for images with overlapped block disparity compensation (OBDC) involves determining if OBDC is enabled in a video bit stream, and determining if OBDC is enabled for one or more macroblocks that neighbor a first macroblock within the video bit stream. The neighboring macroblocks may be transform coded. If OBDC is enabled in the video bit stream and for the one or more neighboring macroblocks, predictions may be made for a region of the first macroblock that has an edge adjacent with the neighboring macroblocks. OBDC can be causally applied. Disparity compensation parameters or modes may be shared amongst views or layers. A variety of predictions may be used with causally-applied OBDC.

Abstract translation: 描述了重叠块差异估计和补偿。 补偿具有重叠块视差补偿（OBDC）的图像涉及确定在视频比特流中OBDC是否被使能，以及确定是否对与视频比特流内的第一宏块相邻的一个或多个宏块启用OBDC。 相邻宏块可以被变换编码。 如果在视频比特流和一个或多个相邻宏块中启用了OBDC，则可以对具有与相邻宏块相邻的边缘的第一宏块的区域进行预测。 OBDC可以因果地应用。 视差补偿参数或模式可以在视图或图层之间共享。 可以使用各种预测作为病因应用的OBDC。

公开(公告)号：US12206908B2

公开(公告)日：2025-01-21

申请号：US18652375

申请日：2024-05-01

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin J. Stec

IPC: H04N19/85 ,  H04N7/01 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/117 ,  H04N19/154 ,  H04N19/169 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/597 ,  H04N19/70 ,  H04N19/80 ,  H04N19/86 ,  H04N19/895 ,  H04N21/434 ,  H04N13/10 ,  H04N19/40 ,  H04N19/89

Abstract: 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.

公开(公告)号：US12114021B1

公开(公告)日：2024-10-08

申请号：US18750303

申请日：2024-06-21

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin J. Stec

IPC: H04N19/85 ,  H04N7/01 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/117 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/597 ,  H04N19/70 ,  H04N19/80 ,  H04N19/86 ,  H04N19/895 ,  H04N21/434 ,  H04N13/10 ,  H04N19/40 ,  H04N19/89

CPC classification number: H04N19/85 ,  H04N7/0102 ,  H04N7/0117 ,  H04N7/0135 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/117 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/597 ,  H04N19/70 ,  H04N19/80 ,  H04N19/86 ,  H04N19/865 ,  H04N19/895 ,  H04N21/4347 ,  H04N13/10 ,  H04N19/40 ,  H04N19/89

Abstract: 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.

公开(公告)号：US20240305783A1

公开(公告)日：2024-09-12

申请号：US18667917

申请日：2024-05-17

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Athanasios Leontaris ,  Alexandros Tourapis

IPC: H04N19/124 ,  H04N19/126 ,  H04N19/137 ,  H04N19/14 ,  H04N19/142 ,  H04N19/149 ,  H04N19/15 ,  H04N19/152 ,  H04N19/154 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/194 ,  H04N19/61 ,  H04N19/615 ,  H04N19/80

CPC classification number: H04N19/124 ,  H04N19/137 ,  H04N19/14 ,  H04N19/142 ,  H04N19/15 ,  H04N19/154 ,  H04N19/159 ,  H04N19/194 ,  H04N19/615 ,  H04N19/80 ,  H04N19/126 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/61

Abstract: Embodiments feature families of rate allocation and rate control methods that utilize advanced processing of past and future frame/field picture statistics and are designed to operate with one or more coding passes. At least two method families include: a family of methods for a rate allocation with picture look-ahead; and a family of methods for average bit rate (ABR) control methods. At least two other methods for each method family are described. For the first family of methods, some methods may involve intra rate control. For the second family of methods, some methods may involve high complexity ABR control and/or low complexity ABR control. These and other embodiments can involve any of the following: spatial coding parameter adaptation, coding prediction, complexity processing, complexity estimation, complexity filtering, bit rate considerations, quality considerations, coding parameter allocation, and/or hierarchical prediction structures, among others.

公开(公告)号：US12081797B2

公开(公告)日：2024-09-03

申请号：US18503711

申请日：2023-11-07

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Alexandros Tourapis ,  Walter J. Husak ,  Peshala V. Pahalawatta ,  Athanasios Leontaris

IPC: H04N19/597 ,  H04N13/139 ,  H04N13/161 ,  H04N13/194 ,  H04N19/112 ,  H04N19/132 ,  H04N19/16 ,  H04N19/176 ,  H04N19/33 ,  H04N19/46 ,  H04N19/587 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/438

CPC classification number: H04N19/597 ,  H04N13/139 ,  H04N13/161 ,  H04N13/194 ,  H04N19/112 ,  H04N19/132 ,  H04N19/16 ,  H04N19/176 ,  H04N19/33 ,  H04N19/46 ,  H04N19/587 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/4347 ,  H04N21/4382

Abstract: 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.

公开(公告)号：US12058372B2

公开(公告)日：2024-08-06

申请号：US18466957

申请日：2023-09-14

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin J. Stec

IPC: H04N19/597 ,  H04N7/01 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86 ,  H04N19/895 ,  H04N21/434 ,  H04N13/10 ,  H04N19/40 ,  H04N19/89

CPC classification number: H04N19/597 ,  H04N7/0102 ,  H04N7/0117 ,  H04N7/0135 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/865 ,  H04N19/895 ,  H04N21/4347 ,  H04N13/10 ,  H04N19/40 ,  H04N19/86 ,  H04N19/89

Abstract: 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.

公开(公告)号：US20230388514A1

公开(公告)日：2023-11-30

申请号：US18234310

申请日：2023-08-15

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Alexandros Tourapis ,  Athanasios Leontaris

IPC: H04N19/139 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/30 ,  H04N19/61 ,  H04N19/103 ,  H04N19/573 ,  H04N19/513 ,  H04N19/583 ,  H04N19/577 ,  H04N19/182 ,  H04N19/105 ,  H04N19/152 ,  H04N19/159

CPC classification number: H04N19/139 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/30 ,  H04N19/61 ,  H04N19/103 ,  H04N19/573 ,  H04N19/521 ,  H04N19/583 ,  H04N19/577 ,  H04N19/182 ,  H04N19/105 ,  H04N19/152 ,  H04N19/159 ,  H04N19/184

Abstract: Overlapped block disparity estimation and compensation is described. Compensating for images with overlapped block disparity compensation (OBDC) involves determining if OBDC is enabled in a video bit stream, and determining if OBDC is enabled for one or more macroblocks that neighbor a first macroblock within the video bit stream. The neighboring macroblocks may be transform coded. If OBDC is enabled in the video bit stream and for the one or more neighboring macroblocks, predictions may be made for a region of the first macroblock that has an edge adjacent with the neighboring macroblocks. OBDC can be causally applied. Disparity compensation parameters or modes may be shared amongst views or layers. A variety of predictions may be used with causally-applied OBDC.

公开(公告)号：US11622130B2

公开(公告)日：2023-04-04

申请号：US17552765

申请日：2021-12-16

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Alexandros Tourapis ,  Walter J. Husak ,  Peshala V. Pahalawatta ,  Athanasios Leontaris

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/33 ,  H04N13/161 ,  H04N13/194 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/438 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/112 ,  H04N19/16 ,  H04N19/587 ,  H04N19/85 ,  H04N21/434

Abstract: 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.

公开(公告)号：US11539959B2

公开(公告)日：2022-12-27

申请号：US17332028

申请日：2021-05-27

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Alexandros Tourapis ,  Athanasios Leontaris

IPC: H04N19/139 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/30 ,  H04N19/61 ,  H04N19/103 ,  H04N19/573 ,  H04N19/513 ,  H04N19/583 ,  H04N19/577 ,  H04N19/182 ,  H04N19/105 ,  H04N19/152 ,  H04N19/159 ,  H04N19/184

Abstract: Overlapped block disparity estimation and compensation is described. Compensating for images with overlapped block disparity compensation (OBDC) involves determining if OBDC is enabled in a video bit stream, and determining if OBDC is enabled for one or more macroblocks that neighbor a first macroblock within the video bit stream. The neighboring macroblocks may be transform coded. If OBDC is enabled in the video bit stream and for the one or more neighboring macroblocks, predictions may be made for a region of the first macroblock that has an edge adjacent with the neighboring macroblocks. OBDC can be causally applied. Disparity compensation parameters or modes may be shared amongst views or layers. A variety of predictions may be used with causally-applied OBDC.

公开(公告)号：US11277619B2

公开(公告)日：2022-03-15

申请号：US16904568

申请日：2020-06-18

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Athanasios Leontaris ,  Alexandros Tourapis

IPC: H04N19/146 ,  H04N19/102 ,  H04N19/115 ,  H04N19/14 ,  H04N19/177 ,  H04N19/192 ,  H04N19/436 ,  H04N19/154

Abstract: Rate control techniques are provided for encoding an input video sequence into a compressed coded bitstream with multiple coding passes. The final coding pass may comprise final splices with non-overlapping frames that do not extend into neighboring final splices. A final splice in the final coding pass may correspond to at least one non-final splice in a non-final coding pass. A non-final splice may have overlapping frames that extend into neighboring final splices in the final coding pass. The overlapping frames in the non-final splice may be used to derive complexity information about the neighboring final splices. The complexity information about the neighboring final splices, as derived from the overlapping frames, may be used to allocate or improve rate control related budgets in encoding the final splice into the compressed coded bitstream in the final coding pass.