Inventor

ZHANG CHA

US53 patents

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

ZHANG CHA

MICROSOFT CORP

Rebinning methods and arrangements for use in compressing image-based rendering (IBR) data

Efficient one-to-many content distribution in a peer-to-peer computer network

Methods and arrangements for compressing image based rendering data using multiple reference frame prediction techniques that support just-in-time rendering of an image

Rebinning methods and arrangements for use in compressing image-based rendering (IBR) data

Background blurring for video conferencing

Distributed hosting of web content using partial replication

Learning classifiers using combined boosting and weight trimming

Image segmentation using spatial-color Gaussian mixture models

Multi-device capture and spatial browsing of conferences

Identification of people using multiple types of input

Participant positioning in multimedia conferencing

Video noise reduction

Multiple-instance pruning for learning efficient cascade detectors

Histogram-based classifiers having variable bin sizes

Methods and arrangements for handling concentric mosaic image data

Facial expression tracking

Rebinning methods and arrangements for use in compressing image-based rendering (IBR) data

Distributed presentations employing inputs from multiple video cameras located at multiple sites and customizable display screen configurations

Rebinning methods and arrangements for use in compressing image-based rendering (IBR) data

Hair surface reconstruction from wide-baseline camera arrays

ZHANG CHA

Combined digital and mechanical tracking of a person or object using a single video camera

Multi-view video compression and streaming based on viewpoints of remote viewer

Calibration between depth and color sensors for depth cameras

Boosted face verification

Multiple category learning for training classifiers

Multi-sensor sound source localization

Identification of people using multiple types of input

Depth reconstruction using plural depth capture units

Imaging through a display screen

Identification of people using multiple types of input

MICROSOFT TECHNOLOGY LICENSING LLC

Active speaker location detection

Active speaker location detection

Audio based discovery and connection to a service controller

Computing 3D shape parameters for face animation

Enhanced supervised form understanding

Supervised OCR training for custom forms

Knowledge driven pre-trained form key mapping

Imaging through a display screen

Entry detection and recognition for custom forms

HEGDE RAJESH K

Multi-device capture and spatial browsing of conferences

Management of split audio/video streams

FLORENCIO DINEI AFONSO FERREIRA

Three-dimensional (3D) imaging based on motionparallax

Three-dimensional (3D) imaging based on MotionParallax

CHOU PHILIP A

Immersive remote conferencing

FLORENCIO DINEI

Enhanced beamforming for arrays of directional microphones

LIU ZICHENG

Learning image enhancement

FLORENCIO DINEI A

Audio spatialization using reflective room model

HUA GANG

Video retargeting

KRUPKA EYAL

Reducing false detection rate using local pattern based post-filter

SMOLYANSKIY NIKOLAY

Computing 3D shape parameters for face animation