公开(公告)号：US12022096B2

公开(公告)日：2024-06-25

申请号：US16869053

申请日：2020-05-07

Applicant: Intel Corporation

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

IPC: H04N19/196 ,  H04N19/124 ,  H04N19/14 ,  H04N19/176 ,  H04N19/177

CPC classification number: H04N19/196 ,  H04N19/124 ,  H04N19/14 ,  H04N19/176 ,  H04N19/177

Abstract: An example apparatus for encoding video frames includes a mask selector to select a subset of visual masks according to an actual target compression ratio and GOP configuration and a complexity estimator to estimate a picture level spatial/temporal complexity for a current frame. The example apparatus further includes a GOP adaptive visual mask selector to specify a visual mask from the subset of the visual masks corresponding to the estimated spatial and temporal complexity value a good enough picture QP deriver to derive a good enough picture QP value using the visual mask. The example apparatus also includes an adjustor to adjust the good enough picture QP value based on block level human visual system sensitivity and statistics of already encoded frames to obtain a final human visual system QP map.

公开(公告)号：US11825088B2

公开(公告)日：2023-11-21

申请号：US16684952

申请日：2019-11-15

Applicant: INTEL CORPORATION

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

IPC: H04N9/14 ,  H04N19/124 ,  H04N19/152 ,  H04N19/172 ,  H04N19/14

CPC classification number: H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/172

Abstract: An example apparatus for encoding video frames includes a frame analyzer to execute a look ahead analysis on a received set of frames. The frame analyzer includes a look ahead video analyzer to down-sample the set of frames and encode the down-sampled frames with a constant quantization parameter (QP). A number of generated bits for each of the frames is used as a complexity measurement for each of the frames. The apparatus further includes an encoder to encode the input frame using an adjusted bit allocation based on a relative complexity of the input frame in relation to a complexity of the set of frames.

公开(公告)号：US20220109853A1

公开(公告)日：2022-04-07

申请号：US17553449

申请日：2021-12-16

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Yi-Jen Chiu ,  Keith Rowe

IPC: H04N19/147 ,  G06N20/00 ,  H04N19/117 ,  H04N19/127 ,  H04N19/107

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to improve video encoding. An example apparatus includes at least one memory, instructions, and processor circuitry to generate a pool of clipping index set candidates by executing a machine learning model, select a clipping index set from the pool of the clipping index set candidates based on a rate distortion cost associated with the clipping index set, the clipping index set including clipping coefficients, and filter a video frame based on the clipping coefficients.

公开(公告)号：US20230034367A1

公开(公告)日：2023-02-02

申请号：US17955223

申请日：2022-09-28

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Yi-Jen Chiu ,  Keith Rowe

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/186 ,  H04N19/172

Abstract: Example methods, apparatus, systems and articles of manufacture to implement adaptive loop filter classification and selection for video coding are disclosed. Examples disclosed herein determine whether a collection of available adaptive loop filter sets associated with luma components of the input picture is empty. When the collection of available adaptive loop filter sets is not empty, disclosed examples also enable adaptive loop filtering for the luma components of the input picture, and select at least one of the collection of available adaptive loop filter sets to include in a selection of adaptive loop filter sets for the input picture, with the selection based on an order in which ones of the available adaptive loop filter sets in the collection were derived. Some disclosed examples additionally or alternatively perform block classification to determine accumulated class statistics for derivation of an adaptive loop filter set associated with the input picture.

公开(公告)号：US20250047851A1

公开(公告)日：2025-02-06

申请号：US18921274

申请日：2024-10-21

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Changliang Wang ,  Sang-hee Lee ,  Keith Rowe

IPC: H04N19/124 ,  H04N19/119 ,  H04N19/167 ,  H04N19/172

Abstract: Techniques related to adaptive quality boosting for low latency video coding are discussed. Such techniques include segmenting each of a number of temporally adjacent video frames into unique high encode quality regions and encoding each of the video frames by applying a coding quality boost to the high encode quality regions relative to other regions of the video frames.

公开(公告)号：US12166986B2

公开(公告)日：2024-12-10

申请号：US17121284

申请日：2020-12-14

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Changliang Wang ,  Sang-hee Lee ,  Keith Rowe

IPC: H04N19/124 ,  H04N19/119 ,  H04N19/167 ,  H04N19/172

Abstract: Techniques related to adaptive quality boosting for low latency video coding are discussed. Such techniques include segmenting each of a number of temporally adjacent video frames into unique high encode quality regions and encoding each of the video frames by applying a coding quality boost to the high encode quality regions relative to other regions of the video frames.

公开(公告)号：US20200267396A1

公开(公告)日：2020-08-20

申请号：US16869053

申请日：2020-05-07

Applicant: Intel Corporation

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

IPC: H04N19/196 ,  H04N19/177 ,  H04N19/124 ,  H04N19/176 ,  H04N19/14

Abstract: An example apparatus for encoding video frames includes a mask selector to select a subset of visual masks according to an actual target compression ratio and GOP configuration and a complexity estimator to estimate a picture level spatial/temporal complexity for a current frame. The example apparatus further includes a GOP adaptive visual mask selector to specify a visual mask from the subset of the visual masks corresponding to the estimated spatial and temporal complexity value a good enough picture QP deriver to derive a good enough picture QP value using the visual mask. The example apparatus also includes an adjustor to adjust the good enough picture QP value based on block level human visual system sensitivity and statistics of already encoded frames to obtain a final human visual system QP map.

公开(公告)号：US20240357138A1

公开(公告)日：2024-10-24

申请号：US18665022

申请日：2024-05-15

Applicant: Intel Corporation

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

IPC: H04N19/196 ,  H04N19/124 ,  H04N19/14 ,  H04N19/176 ,  H04N19/177

CPC classification number: H04N19/196 ,  H04N19/124 ,  H04N19/14 ,  H04N19/176 ,  H04N19/177

Abstract: An example apparatus for encoding video frames includes a mask selector to select a subset of visual masks according to an actual target compression ratio and GOP configuration and a complexity estimator to estimate a picture level spatial/temporal complexity for a current frame. The example apparatus further includes a GOP adaptive visual mask selector to specify a visual mask from the subset of the visual masks corresponding to the estimated spatial and temporal complexity value a good enough picture QP deriver to derive a good enough picture QP value using the visual mask. The example apparatus also includes an adjustor to adjust the good enough picture QP value based on block level human visual system sensitivity and statistics of already encoded frames to obtain a final human visual system QP map.

公开(公告)号：US20220109889A1

公开(公告)日：2022-04-07

申请号：US17553460

申请日：2021-12-16

Applicant: Intel Corporation

Inventor： Ximin Zhang ,  Yi-Jen Chiu ,  Keith Rowe

IPC: H04N19/82 ,  H04N19/147 ,  H04N19/107 ,  H04N19/117 ,  G06N20/00

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to improve video encoding. An example apparatus includes at least one memory, instructions, and processor circuitry to at least one of execute or instantiate the instructions to identify a first video frame as a critical video frame with respect to a previous video frame, generate filter coefficients of a video filter based on pixel data of the first video frame or pixel data of a previous critical video frame, and encode the first video frame with the filter coefficients.

公开(公告)号：US11044477B2

公开(公告)日：2021-06-22

申请号：US16715315

申请日：2019-12-16

Applicant: INTEL CORPORATION

Inventor： Ximin Zhang ,  Szu-Wei Lee ,  Sang-Hee Lee ,  Keith Rowe

IPC: H04N19/124 ,  H04N19/12 ,  H04N19/172 ,  H04N19/517

Abstract: An example apparatus for encoding video frames includes a receiver to receive a current frame to be encoded, and a quantization parameter and statistics for the current frame. The apparatus also includes a frame motion analyzer to detect a motion activity status for the current frame based on the statistics via a motion activity analysis. The apparatus further includes a motion adaptive frame inserter to adaptively switch between a regular reference list management and a long-term reference frame insertion based on the detected motion activity status and the quantization parameter. The apparatus also further includes an encoder to encode the current frame using the regular reference list management or the long-term reference frame insertion.