Inventor

ZHANG DAZHONG

US58 patents

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

ZHANG DAZHONG

APPLE INC

Systems and methods for background concealment in video conferencing session

Adaptive syntax grouping and compression in video data using a default value and an exception value

Packed image format for multi-directional video

In loop chroma deblocking filter

Adaptive coding and streaming of multi-directional video

Processing of equirectangular object data to compensate for distortion by spherical projections

Object tracking in multi-view video

Multi-device communication management

Scalability of multi-directional video streaming

Sphere projected motion estimation/compensation and mode decision

Multi-device communication management

Video coding with composition and quality adaptation based on depth derivations

Techniques to overcome communication lag between terminals performing video mirroring and annotation operations

Multiway audio-video conferencing

Gradual decoder refresh techniques with management of reference pictures

Techniques to overcome communication lag between terminals performing video mirroring and annotation operations

Adaptive coding and streaming of multi-directional video

Multi-device communication management

Multi-device communication management

Sphere projected motion estimation/compensation and mode decision

Systems and methods for perspective shifting in video conferencing session

Adaptive coding and streaming of multi-directional video

Systems and methods for perspective shifting in video conferencing session

In loop chroma deblocking filter

Packed image format for multi-directional video

Adaptive coding and streaming of multi-directional video

Video coding techniques for multi-view video

Adaptive resolution and projection format in multi-direction video

Applications for decoder-side modeling of objects identified in decoded video data

Efficient coding of video data in the presence of video annotations

Efficient coding of source video sequences partitioned into tiles

Gesture and prominence in video conferencing

Real-time face and object manipulation

Video compression techniques for high dynamic range data

Processing of multi-directional images in spatially-ordered video coding applications

Bandwidth management in devices with simultaneous download of multiple data streams

Video quality adaptation with frame rate conversion

Predictive video coder with low power reference picture transformation

Error resilient management of picture order count in predictive coding systems

Error correction coding for recovering multiple packets in a group in view of limited bandwidth

Dynamic video configurations

In loop chroma deblocking filter

Applications for decoder-side modeling of objects identified in decoded video data

Bit stream switching in lossy network

Coherence groups: region descriptors for low bit rate encoding

ZHOU XIAOSONG

Error correction coding for recovering multiple packets in a group view of limited bandwidth

Compression-quality driven image acquisition and processing system

ABUAN JOE S

Remote control operations in a video conference

ZHANG KE

Video coding system using implied reference frames

PRICE DOUGLAS SCOTT

Object detection informed encoding