公开(公告)号：US20240283952A1

公开(公告)日：2024-08-22

申请号：US18636941

申请日：2024-04-16

申请人： Intel Corporation

发明人： Minzhi Sun ,  Ximin Zhang ,  Yi-jen Chiu ,  James Holland

IPC分类号： H04N19/189 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

CPC分类号： H04N19/189 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46

摘要： A lightweight but effective adaptive coding tool selection system with content classification can be implemented to reduce complexity and maintain quality in a video encoder. Content classification may classify a current frame between at least three classifications: screen content, weak screen content, and natural content. Content classification may make use of two statistics, e.g., color number and variance, of blocks that are 8×8 pixels or larger in size. The statistics may be used to calculate three frame-level statistics, e.g., proportion/percentage of blocks with few colors, proportion/percentage of blocks with zero variance, and proportion/percentage of blocks with big/large variance. The frame-level statistics are used to classify the current frame. Based on the classification, coding tool control flags or control signals may be generated accordingly to configure the encoder to, e.g., turn on or off certain coding tools, and/or use certain parameter values for the coding tools.

公开(公告)号：US20240107078A1

公开(公告)日：2024-03-28

申请号：US18525444

申请日：2023-11-30

申请人： Intel Corporation

发明人： Minzhi Sun ,  Ximin Zhang ,  Yi-jen Chiu

IPC分类号： H04N19/86 ,  H04N19/124 ,  H04N19/176

CPC分类号： H04N19/86 ,  H04N19/124 ,  H04N19/176

摘要： Methods, articles, and systems of image processing comprise obtaining image data of frames of a video sequence. The method also includes determining multiple reference frames of a current frame in the video sequence. The multiple reference frames each have at least one motion compensated (MC) block of image data. Also, the method then includes generating a weight that factors noise, distortion variance, and dispersion distribution between the same MC block position and the current block. Thereafter, the method includes generating denoised filtered image data comprising applying one of the weights to the image data of the motion compensated (MC) block.