公开(公告)号：US11930215B2

公开(公告)日：2024-03-12

申请号：US17448658

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

Inventor： Hongtao Wang ,  Venkata Meher Satchit Anand Kotra ,  Jianle Chen ,  Marta Karczewicz ,  Dana Kianfar ,  Auke Joris Wiggers

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

Abstract: An example device for filtering decoded video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: decode a picture of video data; code a value for a syntax element representing a neural network model to be used to filter a portion of the decoded picture, the value representing an index into a set of pre-defined neural network models, the index corresponding to the neural network model in the set of pre-defined neural network models; and filter the portion of the decoded picture using the neural network model corresponding to the index.

公开(公告)号：US20240244265A1

公开(公告)日：2024-07-18

申请号：US18433946

申请日：2024-02-06

Applicant: QUALCOMM Incorporated

Inventor： Hongtao Wang ,  Venkata Meher Satchit Anand Kotra ,  Jianle Chen ,  Marta Karczewicz ,  Dana Kianfar ,  Auke Joris Wiggers

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/192 ,  H04N19/44 ,  H04N19/80

Abstract: An example device for filtering decoded video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: decode a picture of video data; code a value for a syntax element representing a neural network model to be used to filter a portion of the decoded picture, the value representing an index into a set of pre-defined neural network models, the index corresponding to the neural network model in the set of pre-defined neural network models; and filter the portion of the decoded picture using the neural network model corresponding to the index.

公开(公告)号：US12058348B2

公开(公告)日：2024-08-06

申请号：US17070589

申请日：2020-10-14

Applicant: QUALCOMM Incorporated

Inventor： Dana Kianfar ,  Auke Joris Wiggers ,  Amir Said ,  Taco Sebastiaan Cohen ,  Reza Pourreza Shahri

IPC: H04N19/124 ,  G05B13/00 ,  G06F30/27 ,  G06N3/02 ,  G06N3/047 ,  H04N19/13 ,  H04N19/176 ,  H04N19/18 ,  H04N19/61

CPC classification number: H04N19/176 ,  G05B13/00 ,  G06F30/27 ,  G06N3/02 ,  G06N3/047 ,  H04N19/124 ,  H04N19/13 ,  H04N19/18 ,  H04N19/61 ,  H04Q2213/13343 ,  H04Q2213/343 ,  Y10S706/00

Abstract: A video encoder determines scaled transform coefficients, wherein determining the scaled transform coefficients comprises scaling transform coefficients of a block of the video data according to a given quantization step. The video encoder determines scalar quantized coefficients, wherein determining the scalar quantized coefficients comprises applying scalar quantization to the scaled transform coefficients of the block. Additionally, the video encoder applies a neural network that determines a respective set of probabilities for each respective transform coefficient of the block. The respective set of probabilities for the respective transform coefficient includes a respective probability value for each possible adjustment value in a plurality of possible adjustment values. Inputs to the neural network include the scaled transform coefficients and the scalar quantized coefficients. The video encoder determines, based on the set of probabilities for a particular transform coefficient of the block, a quantization level for the particular transform coefficient.

公开(公告)号：US20220103864A1

公开(公告)日：2022-03-31

申请号：US17448658

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

Inventor： Hongtao Wang ,  Venkata Meher Satchit Anand Kotra ,  Jianle Chen ,  Marta Karczewicz ,  Dana Kianfar ,  Auke Joris Wiggers

IPC: H04N19/70 ,  H04N19/44 ,  H04N19/172 ,  H04N19/192 ,  H04N19/80

Abstract: An example device for filtering decoded video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: decode a picture of video data; code a value for a syntax element representing a neural network model to be used to filter a portion of the decoded picture, the value representing an index into a set of pre-defined neural network models, the index corresponding to the neural network model in the set of pre-defined neural network models; and filter the portion of the decoded picture using the neural network model corresponding to the index.

公开(公告)号：US20210329267A1

公开(公告)日：2021-10-21

申请号：US17070589

申请日：2020-10-14

Applicant: QUALCOMM Incorporated

Inventor： Dana Kianfar ,  Auke Joris Wiggers ,  Amir Said ,  Taco Sebastiaan Cohen ,  Reza Pourreza Shahri

IPC: H04N19/176 ,  H04N19/61 ,  H04N19/13 ,  H04N19/18 ,  H04N19/124

Abstract: A video encoder determines scaled transform coefficients, wherein determining the scaled transform coefficients comprises scaling transform coefficients of a block of the video data according to a given quantization step. The video encoder determines scalar quantized coefficients, wherein determining the scalar quantized coefficients comprises applying scalar quantization to the scaled transform coefficients of the block. Additionally, the video encoder applies a neural network that determines a respective set of probabilities for each respective transform coefficient of the block. The respective set of probabilities for the respective transform coefficient includes a respective probability value for each possible adjustment value in a plurality of possible adjustment values. Inputs to the neural network include the scaled transform coefficients and the scalar quantized coefficients. The video encoder determines, based on the set of probabilities for a particular transform coefficient of the block, a quantization level for the particular transform coefficient.