Inventor

AUYEUNG CHEUNG

US72 patents

⚠️ This page may combine multiple inventors who share the name “AUYEUNG CHEUNG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AUYEUNG CHEUNG

Tencent America LLC

Signaling of video coding tools supporting various chroma formats

Disabling coding tool for active color transform

Method of reducing context models for entropy coding of transform coefficient significant flag

Method and apparatus for video coding

Region adaptive loop filter for video coding

Estimating attributes for the classification of adaptive loop filtering based on projection-slice theorem

Method and apparatus for video coding

Method and apparatus for video coding

Reducing context models for entropy coding of transform coefficients

Signaling of coding tools for encoding a video component as monochrome video

Sign prediction

Method and apparatus for video coding

Signaling of video coding tools supporting various chroma format

Method to extend the range of rice parameter for residual coding in transform skip mode

Method and apparatus for video coding

Method and apparatus for video coding

Reducing context models for entropy coding of transform coefficients

Method and apparatus for video coding

Signaling of coding tools for encoding a video component as monochrome video

Coding method and system with improved transform domain coefficient computation

Signaling of coding tools for encoding a video component as monochrome video

Method and apparatus for video coding

Signaling of coding tools for encoding a video component as monochrome video

Unification of rice parameter lookup table

Coding method and system with improved transform domain coefficient computation

Method and apparatus for video coding

MOTOROLA INC

Method and apparatus for preventing overflow and underflow of an encoder buffer in a video compression system

Method for estimating motion in a video sequence

Method and apparatus for adaptive entropy encoding/decoding of quantized transform coefficients in a video compression system

Method and apparatus for spatially adaptive filtering for video encoding

Method and apparatus for bound-based adaptive entropy encoding/decoding

Method and apparatus for scanning of transform coefficients

Method and device for determining bit allocation in a video compression system

Method for determining whether to intra code a video block

Method, rate controller, and system for preventing overflow and underflow of a decoder buffer in a video compression system

SONY CORP

Bypass using sum of absolute transformed differences value (SATD) in a video coding process

Fast codebook selection method in audio encoding

Video transmission system with color gamut partitioning and method of operation thereof

Extensions of motion-constrained tile sets SEI message for interactivity

Method of performing quantization within a multimedia bitstream utilizing division-free instructions

Region of interest scalability with SHVC

Extensions of motion-constrained tile sets SEI message for interactivity

AUYEUNG CHEUNG

Estimation of B frame average rate quantization parameter (QP) in a group of pictures (GOP)

Estimation of P frame average rate quantization parameter (QP) in a group of pictures (GOP)

Context reduction for last transform position coding

System and method to control compressed video picture quality for a given average bit rate

SONY ELECTRONICS INC

Method of performing sub-pixel based edge-directed image interpolation

Method of estimating backward motion vectors within a video sequence

VWEB CORP

Motion estimation using predetermined pixel patterns and subpatterns

Motion estimation using multiple search windows