公开(公告)号：US20220086463A1

公开(公告)日：2022-03-17

申请号：US17182686

申请日：2021-02-23

Applicant: QUALCOMM Incorporated

Inventor： Muhammed Zeyd COBAN ,  Ankitesh Kumar SINGH ,  Hilmi Enes EGILMEZ ,  Marta KARCZEWICZ

IPC: H04N19/186 ,  H04N19/172 ,  H04N19/90 ,  G06N3/04

Abstract: Systems and techniques are described herein for processing video data using a neural network system. For instance, a process can include generating, by a first convolutional layer of an encoder sub-network of the neural network system, output values associated with a luminance channel of a frame. The process can include generating, by a second convolutional layer of the encoder sub-network, output values associated with at least one chrominance channel of the frame. The process can include generating a combined representation of the frame by combining the output values associated with the luminance channel of the frame and the output values associated with the at least one chrominance channel of the frame. The process can include generating encoded video data based on the combined representation of the frame.

公开(公告)号：US20210092458A1

公开(公告)日：2021-03-25

申请号：US17024614

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Muhammed Zeyd COBAN ,  Marta KARCZEWICZ

IPC: H04N19/82 ,  H04N19/187 ,  H04N19/58

Abstract: Systems, methods, and computer-readable storage media for signaling filters for reference picture resampling are described. One example involves obtaining an encoded video bitstream associated with the video data, identifying a current picture and at least one reference picture from the encoded video bitstream, and identifying signaling data from the encoded video bitstream for the video data, the signaling data including a partial set of coefficient data for at least one filter. A complete set of coefficients (e.g., filter coefficients) is derived for the at least one filter from the partial set of coefficient data and characteristics of the at least one filter, and the current picture is processed using the complete set of coefficients for the at least one filter.

公开(公告)号：US20210051341A1

公开(公告)日：2021-02-18

申请号：US16990910

申请日：2020-08-11

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Adarsh Krishnan RAMASUBRAMONIAN ,  Muhammed Zeyd COBAN

IPC: H04N19/59 ,  H04N19/172 ,  H04N19/184

Abstract: Systems, methods, and computer-readable storage media for calculating scaling ratios are described. An example method can include obtaining a current picture of video data and one or more scaling windows associated with the current picture and/or a reference picture selected for use in coding the current picture; determining a first size of the current picture and/or a second size of the reference picture, the first size including a first height and a first width and the second size including a second height and a second width; based on the one or more scaling windows and the first size and/or the second size, determining one or more scaling ratios associated with the current picture and/or the reference picture.

公开(公告)号：US20210014537A1

公开(公告)日：2021-01-14

申请号：US16921106

申请日：2020-07-06

Applicant: QUALCOMM Incorporated

Inventor： Nan HU ,  Vadim SEREGIN ,  Adarsh Krishnan RAMASUBRAMONIAN ,  Muhammed Zeyd COBAN ,  Marta KARCZEWICZ

IPC: H04N19/80 ,  H04N19/176 ,  H04N19/174 ,  H04N19/119 ,  H04N19/172

Abstract: Systems, methods, and media are provided for loop filtering across raster scan slices. One example includes obtaining data comprising one or more pictures, including obtaining a first block located in a first slice of one of the pictures. The example then includes determining a second block is located in a second slice of the picture, the second block including one or more pixels for use in performing loop filtering of a pixel of the first block, and determining that loop filtering across slice boundaries is disabled. Based on this disabling, the example determines that the one or more pixels of the second block are unavailable for performing loop filtering of the pixel of the first block, and duplicates at least one pixel of the first block or at least one pixel of an additional block of the first slice for performing loop filtering of the pixel of the first block.

公开(公告)号：US20140003531A1

公开(公告)日：2014-01-02

申请号：US13841253

申请日：2013-03-15

Applicant: QUALCOMM INCORPORATED

Inventor： Muhammed Zeyd COBAN ,  Ye-Kui WANG

IPC: H04N7/26

CPC classification number: H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: This disclosure describes techniques that may enable a video coder to simultaneously implement multiple parallel processing mechanisms, including two or more of wavefront parallel processing (WPP), tiles, and entropy slices. This disclosure describes signaling techniques that are compatible both with coding standards that only allow one parallel processing mechanism to be implemented at a time, but that are also compatible with potential future coding standards that may allow for more than one parallel processing mechanism to be implemented simultaneously. This disclosure also describes restrictions that may enable WPP and tiles to be implemented simultaneously.

Abstract translation: 本公开描述了使得视频编码器能够同时实现包括波前并行处理（WPP），瓦片和熵切片中的两个或多个的多个并行处理机制的技术。 本公开描述了与编码标准兼容的信令技术，这些编码标准仅允许一次实现一个并行处理机制，但也与可能同时实现多于一个并行处理机制的潜在未来编码标准兼容 。 本公开还描述了可以使WPP和瓦片同时实现的限制。