公开(公告)号：US10609413B2

公开(公告)日：2020-03-31

申请号：US16261196

申请日：2019-01-29

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

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

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

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：US10362334B2

公开(公告)日：2019-07-23

申请号：US15827131

申请日：2017-11-30

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 ,  H04N21/434 ,  H04N21/438 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/112 ,  H04N19/16 ,  H04N19/587 ,  H04N19/85

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：US20190191143A1

公开(公告)日：2019-06-20

申请号：US16285007

申请日：2019-02-25

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Walter J. Husak ,  David Ruhoff ,  Alexandros Tourapis ,  Athanasios Leontaris

IPC: H04N13/161 ,  H04N19/00 ,  H04N19/59 ,  H04N19/60 ,  H04N13/194 ,  H04N19/597 ,  H04N13/15 ,  H04N13/139 ,  H04N19/61

CPC classification number: H04N13/161 ,  H04N13/139 ,  H04N13/15 ,  H04N13/194 ,  H04N19/00 ,  H04N19/59 ,  H04N19/597 ,  H04N19/60 ,  H04N19/61

Abstract: Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

公开(公告)号：US10264235B2

公开(公告)日：2019-04-16

申请号：US16044836

申请日：2018-07-25

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Walter J. Husak ,  David Ruhoff ,  Alexandros Tourapis ,  Athanasios Leontaris

IPC: H04N13/00 ,  H04N13/161 ,  H04N13/139 ,  H04N13/15 ,  H04N13/194 ,  H04N19/597 ,  H04N19/61 ,  H04N19/60 ,  H04N19/59 ,  H04N19/00

Abstract: Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

公开(公告)号：US10038916B2

公开(公告)日：2018-07-31

申请号：US15675058

申请日：2017-08-11

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

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

IPC: H04N13/00 ,  H04N19/59 ,  H04N19/597 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172 ,  H04N19/61 ,  H04N19/117 ,  H04N19/136 ,  H04N19/17 ,  H04N19/187 ,  H04N19/82 ,  H04N19/33 ,  H04N19/85 ,  H04N19/573

CPC classification number: H04N19/59 ,  H04N19/105 ,  H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/17 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33 ,  H04N19/573 ,  H04N19/597 ,  H04N19/61 ,  H04N19/82 ,  H04N19/85

Abstract: 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.

公开(公告)号：US20180213256A1

公开(公告)日：2018-07-26

申请号：US15827131

申请日：2017-11-30

Applicant: Dolby Laboratories Licensing Corporation

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

IPC: H04N19/597 ,  H04N19/85 ,  H04N13/161 ,  H04N19/587

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N13/194 ,  H04N19/112 ,  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：US20180084255A1

公开(公告)日：2018-03-22

申请号：US15825612

申请日：2017-11-29

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Alexandros Tourapis ,  Athanasios Leontaris

IPC: H04N19/139 ,  H04N19/152 ,  H04N19/573 ,  H04N19/30 ,  H04N19/105 ,  H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184

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.

公开(公告)号：US09877046B2

公开(公告)日：2018-01-23

申请号：US14613651

申请日：2015-02-04

Applicant: Dolby Laboratories Licensing Corporation

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

IPC: H04N19/597 ,  H04N13/00 ,  H04N19/176 ,  H04N19/33 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/438 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/112 ,  H04N19/16 ,  H04N19/587 ,  H04N19/85

CPC classification number: H04N19/597 ,  H04N13/161 ,  H04N13/194 ,  H04N19/112 ,  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：US09197888B2

公开(公告)日：2015-11-24

申请号：US13784677

申请日：2013-03-04

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Athanasios Leontaris ,  Alexandros Tourapis

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/102 ,  H04N19/115 ,  H04N19/14 ,  H04N19/177 ,  H04N19/192 ,  H04N19/436

CPC classification number: H04N19/146 ,  H04N19/102 ,  H04N19/115 ,  H04N19/14 ,  H04N19/154 ,  H04N19/177 ,  H04N19/192 ,  H04N19/436

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.

Abstract translation: 提供了速率控制技术，用于将输入视频序列编码成具有多个编码遍的压缩编码比特流。 最终的编码通道可以包括具有不延伸到相邻的最终接头中的非重叠帧的最终接合。 最终编码通道中的最终拼接可以对应于非最终编码遍中的至少一个非最终拼接。 在最终的编码过程中，非最终的拼接可以具有延伸到相邻的最终拼接中的重叠的帧。 非最终拼接中的重叠帧可用于导出关于相邻最终拼接的复杂度信息。 关于从重叠帧导出的邻近最终拼接的复杂性信息可用于在最终编码通过中将最终拼接编码为压缩编码比特流中的速率控制相关预算分配或改进。

公开(公告)号：US20140321552A1

公开(公告)日：2014-10-30

申请号：US14358703

申请日：2012-11-08

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Yuwen He ,  Alexandros Tourapis

IPC: H04N19/86 ,  H04N19/50 ,  H04N19/117

CPC classification number: H04N19/50 ,  H04N19/117 ,  H04N19/192 ,  H04N19/86

Abstract: Systems and methods for selection of deblocking parameters are described. These systems and methods are dependent on and can be adjusted based on applications in which deblocking filtering is to be applied. Various deblocking parameters are iteratively applied in a filter, then the respective distortion values are evaluated in order to select the optimal deblocking parameter. Use of edge detection in relation to selection of deblocking parameters is also described.

Abstract translation: 描述了用于选择去块参数的系统和方法。 这些系统和方法取决于并可以根据应用去块滤波的应用进行调整。 在滤波器中迭代地应用各种去块参数，然后评估各个失真值，以便选择最佳解块参数。 还描述了关于选择去块参数的边缘检测的使用。