公开(公告)号：US20240323373A1

公开(公告)日：2024-09-26

申请号：US18680359

申请日：2024-05-31

申请人： VID SCALE, INC.

发明人： Yuwen He ,  Fanyi Duanmu ,  Xiaoyu Xiu ,  Yan Ye

IPC分类号： H04N19/119 ,  H04N19/117 ,  H04N19/176 ,  H04N19/96

CPC分类号： H04N19/119 ,  H04N19/117 ,  H04N19/176 ,  H04N19/96

摘要： A block may be identified. The block may be partitioned into one or more (e.g., two) sibling nodes (e.g., sibling nodes B0 and B1). A partition direction and a partition type for the block may be determined. If the partition type for the block is binary tree (BT), one or more (e.g., two) partition parameters may be determined for sibling node B0. A partition parameter (e.g., a first partition parameter) may be determined for sibling node B1. A decoder may determine whether to receive an indication of a second partition parameter for B1 based on, for example, the partition direction for the block, the partition type for the block, and the first partition parameter for B1. The decoder may derive the second partition parameter based on, for example, the partition direction and type for the block, and the first partition parameter for B1.

公开(公告)号：US12047571B2

公开(公告)日：2024-07-23

申请号：US17311200

申请日：2019-12-04

申请人： VID SCALE, INC.

发明人： Yong He

IPC分类号： H04N19/119 ,  H04N19/105 ,  H04N19/167 ,  H04N19/174

CPC分类号： H04N19/119 ,  H04N19/105 ,  H04N19/167 ,  H04N19/174

摘要： A system may identify a defined rectangular picture area and render video corresponding to the defined rectangular picture area. The system may receive a video bitstream comprising a picture having a header and may receive data specifying a structure of the picture. The system may parse the data specifying the structure of the picture for an identifier corresponding to a defined rectangular area in the first picture and for a tile index of a top left tile in the defined rectangular area. The system may determine one or more tiles comprised in the defined rectangular area based on the identifier corresponding to the defined rectangular area and the tile index of the top left tile. The system may reconstruct the picture including a sub-picture that comprises the defined rectangular area based upon the identifier corresponding to the defined rectangular area. The computing system may render the sub-picture in the defined rectangular area.

公开(公告)号：US20240244253A1

公开(公告)日：2024-07-18

申请号：US18623846

申请日：2024-04-01

申请人： VID SCALE, INC.

发明人： Xiaoyu Xiu ,  Yuwen He ,  Yan Ye

IPC分类号： H04N19/513 ,  H04N19/176 ,  H04N19/577 ,  H04N19/86

CPC分类号： H04N19/521 ,  H04N19/176 ,  H04N19/577 ,  H04N19/86

摘要： Embodiments of video coding systems and methods are described for reducing coding latency introduced by decoder-side motion vector refinement (DMVR). In one example, two non-refined motion vectors are identified for coding of a first block of samples (e.g. a first coding unit) using bi-prediction. One or both of the non-refined motion vectors are used to predict motion information for a second block of samples (e.g. a second coding unit). The two non-refined motion vectors are refined using DMVR, and the refined motion vectors are used to generate a prediction signal of the first block of samples. Such embodiments allow the second block of samples to be coded substantially in parallel with the first block without waiting for completion of DMVR on the first block. In additional embodiments, optical-flow-based techniques are described for motion vector refinement.

公开(公告)号：US12003770B2

公开(公告)日：2024-06-04

申请号：US17884399

申请日：2022-08-09

申请人： VID SCALE, INC.

发明人： Philippe Hanhart ,  Yan Ye ,  Yuwen He

IPC分类号： H04N19/597 ,  H04N19/117 ,  H04N19/85

CPC分类号： H04N19/597 ,  H04N19/117 ,  H04N19/85

摘要： Systems, methods, and instrumentalities are disclosed for discontinuous face boundary filtering for 360-degree video coding. A face discontinuity may be filtered (e.g., to reduce seam artifacts) in whole or in part, for example, using coded samples or padded samples on either side of the face discontinuity. Filtering may be applied, for example, as an in-loop filter or a post-processing step. 2D positional information related to two sides of the face discontinuity may be signaled in a video bitstream so that filtering may be applied independent of projection formats and/or frame packing techniques.

公开(公告)号：US20240155148A1

公开(公告)日：2024-05-09

申请号：US18281839

申请日：2022-03-16

申请人： VID SCALE, INC.

发明人： Fabien RACAPE ,  Jean BEGAINT ,  Simon FELTMAN ,  Akshay PUSHPARAJA

IPC分类号： H04N19/513 ,  H04N19/132 ,  H04N19/177 ,  H04N19/186 ,  H04N19/52

CPC分类号： H04N19/513 ,  H04N19/132 ,  H04N19/177 ,  H04N19/186 ,  H04N19/52

摘要： Video encoding and decoding is implemented with auto encoders using luminance information to derive motion information for chrominance prediction. In one embodiment YUV 4:2:0 video is encoded and decoded in which luminance information is downsampled to generate predictions from chrominance components of a reference frame. In a related embodiment, more than one reference frame is used for predictions. In another embodiment, convolutions and transpose convolutions implement derivation of motion information.

公开(公告)号：US11979595B2

公开(公告)日：2024-05-07

申请号：US17438119

申请日：2020-03-11

申请人： VID SCALE, INC.

发明人： Hua Yang ,  Yuwen He

IPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/30 ,  H04N19/577

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/30 ,  H04N19/577

摘要： Systems, devices, and methods are described herein for symmetric merge mode motion vector coding. Symmetric bi-prediction (bi-pred) motion vectors (MVs) may be constructed from available candidates in a merge candidate list for regular inter prediction merge mode and/or affine prediction merge mode. Available MV merge candidates may be symmetrically extended or mapped in either direction (e.g., between reference pictures before and after a current picture), for example, when coding a picture that allows bi-directional motion compensation prediction (MCP). A symmetric bi-pred merge candidate may be selected among merge candidates for predicting the motion information of a current prediction unit (PU). The symmetric mapping construction may be repeated by a decoder (e.g., based on a coded index of the MV merge candidate list), for example, to obtain the same merge candidates and coded MV at an encoder.

公开(公告)号：US20240015321A1

公开(公告)日：2024-01-11

申请号：US18370589

申请日：2023-09-20

申请人： VID SCALE, INC.

发明人： Yan Ye ,  Qian Chen ,  Jie Dong

IPC分类号： H04N19/52 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/593 ,  H04N19/11 ,  H04N19/124 ,  H04N19/14 ,  H04N19/80 ,  H04N19/90 ,  H04N19/60 ,  H04N19/59 ,  H04N19/182

CPC分类号： H04N19/52 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/593 ,  H04N19/11 ,  H04N19/124 ,  H04N19/14 ,  H04N19/80 ,  H04N19/90 ,  H04N19/649 ,  H04N19/59 ,  H04N19/182

摘要： Systems, methods, and instrumentalities are disclosed relating to intra prediction of a video signal based on mode-dependent subsampling. A block of coefficients associated with a first sub block of a video block, one or more blocks of coefficients associated with one or more remaining sub blocks of the video block, and an indication of a prediction mode for the video block may be received. One or more interpolating techniques, a predicted first sub block, and the predicted sub blocks of the one or more remaining sub blocks may be determined. A reconstructed first sub block and one or more reconstructed remaining sub blocks may be generated. A reconstructed video block may be formed based on the prediction mode, the reconstructed first sub block, and the one or more reconstructed remaining sub blocks.

公开(公告)号：US20230421863A1

公开(公告)日：2023-12-28

申请号：US18237772

申请日：2023-08-24

申请人： VID SCALE, INC.

发明人： Yong He ,  Yan Ye

IPC分类号： H04N21/81 ,  H04L65/60 ,  H04L65/80 ,  H04L67/02 ,  H04N21/218 ,  H04N21/44 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/845

CPC分类号： H04N21/816 ,  H04L65/60 ,  H04L65/80 ,  H04L67/02 ,  H04N21/21805 ,  H04N21/44 ,  H04N21/472 ,  H04N21/6587 ,  H04N21/8456

摘要： Systems, methods, and instrumentalities are disclosed for a 360-degree video streaming. A video streaming device may receive a 360-degree video stream from a network node. The video streaming device may determine a viewport associated with the video streaming device and/or the 360-degree video stream. The video streaming device may determine (e.g., based on the viewport) to request in advance a first segment and a second segment of the 360-degree video stream. The video streaming device may determine a relative priority order for the first segment and the second segment. The video streaming device may generate an anticipated requests message. The anticipated requests message may indicate the determined relative priority order, for example, by listing the first segment and the second segment in decreasing relative priority based on the determined relative priority order. The video streaming device may send the anticipated requests message to the network node.

公开(公告)号：US11824664B2

公开(公告)日：2023-11-21

申请号：US17395342

申请日：2021-08-05

申请人： VID SCALE, INC.

发明人： Weimin Liu ,  Rahul Vanam ,  Liangping Ma ,  Yuriy Reznik ,  Gregory S. Sternberg ,  Wei Chen ,  Dharm Veer

IPC分类号： H04L1/1867 ,  H04W28/04 ,  H04L43/0823 ,  H04N19/164 ,  H04N21/6437 ,  H04L1/18 ,  H04N19/107 ,  H04N21/647 ,  H04N19/105 ,  H04N19/172 ,  H04L47/74 ,  H04L47/50 ,  H04W8/04

CPC分类号： H04L1/1887 ,  H04L1/18 ,  H04L43/0847 ,  H04L47/54 ,  H04L47/746 ,  H04N19/105 ,  H04N19/107 ,  H04N19/164 ,  H04N19/172 ,  H04N21/6437 ,  H04N21/6473 ,  H04N21/64776 ,  H04W8/04 ,  H04W28/04

摘要： A video encoding device (e.g., a wireless transmit/receive unit (WTRU)) may transmit an encoded frame with a frame sequence number using a transmission protocol. The video encoding device, an application on the video encoding device, and/or a protocol layer on the encoding device may detect a packet loss by receiving an error notification. The packet loss may be detected at the MAC layer. The packet loss may be signaled using spoofed packets, such as a spoofed NAM packet, a spoofed XR packet, or a spoofed ACK packet. A lost packet may be retransmitted at the MAC layer (e.g., by the encoding device or another device on the wireless path). Packet loss detection may be performed in uplink operations and/or downlink operations, and/or may be performed in video gaining applications via the cloud. The video encoding device may generate and send a second encoded frame based on the error notification.

公开(公告)号：US11778231B2

公开(公告)日：2023-10-03

申请号：US16301998

申请日：2017-05-25

申请人： VID SCALE, INC.

发明人： Yuwen He ,  Yan Ye ,  Ahmed Hamza

IPC分类号： H04N19/597 ,  H04N19/82 ,  H04N19/59 ,  H04N19/186

CPC分类号： H04N19/597 ,  H04N19/186 ,  H04N19/59 ,  H04N19/82

摘要： Processing a 360-degree video content for video coding may include receiving the video content in a first geometry. The video content may include unaligned chroma and luma components associated with a first chroma sampling scheme. The unaligned chroma and luma components may be aligned to a sampling grid associated with a second chroma sampling scheme that has aligned chroma and luma components. A geometric conversion to the video content may be performed. The video content, that may comprise the aligned chroma and luma components, in the first geometry may be converted to a second geometry. The first geometry may be a stitched geometry, and the second geometry may be a coding geometry. The converted video content in the second geometry may include the chroma and luma components aligned to the sampling grid associated with the second chroma sampling scheme.