公开(公告)号：US20250056010A1

公开(公告)日：2025-02-13

申请号：US18813665

申请日：2024-08-23

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Sang-Hee Lee ,  Keith W. Rowe

IPC: H04N19/159 ,  G06N3/084 ,  H04N19/176 ,  H04N19/179 ,  H04N19/30 ,  H04N19/70

Abstract: Techniques related to quantization parameter estimation for coding intra and scene change frames are discussed. Such techniques include generating features based on an intra or scene change frame including a proportion of smooth blocks and one or both of a measure of block variance and a prediction distortion, and applying a machine learning model to generate an estimated quantization parameter for encoding the intra or scene change frame.

公开(公告)号：US20240283927A1

公开(公告)日：2024-08-22

申请号：US18637060

申请日：2024-04-16

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Yi-jen Chiu ,  Keith W. Rowe

IPC: H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/142 ,  H04N19/147 ,  H04N19/172 ,  H04N19/463

CPC classification number: H04N19/117 ,  H04N19/124 ,  H04N19/132 ,  H04N19/142 ,  H04N19/147 ,  H04N19/172 ,  H04N19/463

Abstract: In some compression techniques, in-loop filters can be included to effectively remove coding artifacts and improve the objective quality measurement at the same time. To avoid increasing complexity in the encoder, a single pass encoding solution can be implemented to efficiently and effectively make reasonably optimal in-loop filtering decisions. The solution can improve the in-loop filtering bit usage (e.g., reduce bitrate) and reduce the complexity in the encoder at the same time.

公开(公告)号：US20240214594A1

公开(公告)日：2024-06-27

申请号：US18404696

申请日：2024-01-04

Applicant: Intel Corporation

Inventor： Chen Wang ,  Ximin Zhang ,  Huan Dou ,  Yi-Jen Chiu ,  Sang-Hee Lee

IPC: H04N19/44 ,  G06F18/25 ,  G06N3/08 ,  G06T3/4007 ,  G06T3/4053 ,  G06T9/00 ,  G06V10/82 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/30

CPC classification number: H04N19/44 ,  G06F18/251 ,  G06N3/08 ,  G06T3/4007 ,  G06T3/4053 ,  G06T9/002 ,  G06V10/82 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/30

Abstract: Techniques related to accelerated video enhancement using deep learning selectively applied based on video codec information are discussed. Such techniques include applying a deep learning video enhancement network selectively to decoded non-skip blocks that are in low quantization parameter frames, bypassing the deep learning network for decoded skip blocks in low quantization parameter frames, and applying non-deep learning video enhancement to high quantization parameter frames.

公开(公告)号：US10721471B2

公开(公告)日：2020-07-21

申请号：US15794938

申请日：2017-10-26

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Bin Zhu ,  Sang-Hee Lee ,  Qing Li

IPC: H04N19/124 ,  H04N19/167 ,  G06N3/04 ,  H04N19/184 ,  G06N3/10 ,  H04N19/59 ,  G06N3/08 ,  H04N19/159 ,  H04N19/172 ,  H04N19/136 ,  G06N20/20 ,  G06N5/00

Abstract: Techniques related to quantization parameter estimation for video coding are discussed. Such techniques may include generating features using a picture of input video received for encoding and applying a neural network to a feature vector including the features, a target bitrate, and a resolution of the picture to generate an estimated quantization parameter for encoding the picture.

公开(公告)号：US10687083B2

公开(公告)日：2020-06-16

申请号：US16001488

申请日：2018-06-06

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Sang-Hee Lee ,  Keith W. Rowe

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/136 ,  H04N19/172 ,  H04N19/182

Abstract: Techniques related to selecting restoration filter coefficients for 2-dimensional loop restoration filters for super resolution video coding are discussed. Such techniques include upscaling reconstructed video frames along only a first dimension and selecting filter coefficients for portions of the frame by an evaluation that, for each pixel of the portion, uses only pixel values that are aligned with the first dimension. Selection of filter coefficients for the second dimension may be skipped or made using only a subset of available filter coefficients.

公开(公告)号：US10674151B2

公开(公告)日：2020-06-02

申请号：US16048952

申请日：2018-07-30

Applicant: INTEL CORPORATION

Inventor： Ximin Zhang ,  Sang-Hee Lee ,  Keith W. Rowe

IPC: H04N19/124 ,  H04N19/82 ,  H04N19/117 ,  H04N19/157 ,  H04N19/172 ,  H04N19/146

Abstract: Techniques related to coding video using adaptive in-loop filtering enablement are discussed. Such techniques may include determining whether or not to perform in-loop filtering based on evaluating a maximum coding bit limit of a picture of the video, a quantization parameter of the picture, and a coding structure of the video.

公开(公告)号：US10560702B2

公开(公告)日：2020-02-11

申请号：US15004779

申请日：2016-01-22

Applicant: INTEL CORPORATION

Inventor： Ximin Zhang ,  Sang-Hee Lee

IPC: H04N19/176

Abstract: Techniques related to transform unit size determination for video coding are discussed. Such techniques may include comparing individual prediction residues of a unit of a picture of video such as a coding unit to an adaptive threshold and splitting a transform unit corresponding to the unit if any of the prediction residues exceed the adaptive threshold.

公开(公告)号：US20180288356A1

公开(公告)日：2018-10-04

申请号：US15477014

申请日：2017-04-01

Applicant: Intel Corporation

Inventor： Joydeep Ray ,  Abhishek R. Appu ,  Stanley J. Baran ,  Sang-Hee Lee ,  Atthar H. Mohammed ,  Jong Dae Oh ,  Hiu-Fai R. Chan ,  Ximin Zhang

IPC: H04N5/52 ,  H04N13/00 ,  H04N5/232 ,  H04N5/235 ,  H04N19/124 ,  H04N19/154

Abstract: An embodiment may include a display processor, memory to store a 2D frame corresponding to a projection from a 360 video, and a quality selector to select a quality factor for a block of the 2D frame based on quality information from neighboring blocks of the 2D frame, including blocks which are neighboring only in the 360 video space. The system may also include a range adjuster to adjust a search range for the 2D frame based on a search area of the 2D frame, a viewport manager to determine if a request for a viewport of the 2D frame extends beyond a first edge of the 2D frame and to fill the requested viewport with wrap-around image information, and/or a motion estimator to estimate motion information based on both color information and depth information. Other embodiments are disclosed and claimed.

公开(公告)号：US20170214938A1

公开(公告)日：2017-07-27

申请号：US15002697

申请日：2016-01-21

Applicant: INTEL CORPORATION

Inventor： Ximin Zhang ,  Sang-Hee Lee ,  Dmitry E. Ryzhov

IPC: H04N19/58 ,  H04N19/146 ,  H04N19/177 ,  H04N19/126 ,  H04N19/70 ,  H04N19/593

CPC classification number: H04N19/58 ,  H04N19/124 ,  H04N19/126 ,  H04N19/142 ,  H04N19/146 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177 ,  H04N19/593 ,  H04N19/70

Abstract: Techniques related to long term reference picture video coding are discussed. Such techniques may include determining long term reference pictures for a sequence of pictures, adjusting the quantization parameters for the long term reference pictures, and managing reference picture lists.

公开(公告)号：US09661329B2

公开(公告)日：2017-05-23

申请号：US14265580

申请日：2014-04-30

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Sang-Hee Lee

IPC: H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196 ,  H04N19/159 ,  H04N19/14

CPC classification number: H04N19/124 ,  H04N19/14 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/197

Abstract: Techniques related to constant quality video coding are discussed. Such techniques may include determining a quantization parameter for a frame of a video sequence, modifying the quantization parameter based on a spatial complexity or a temporal complexity associated with the video frame, and generating a block level quantization parameter for a block of the video frame based on the modified frame level quantization parameter, a complexity of the block, and a complexity of the video frame.