1
Guobin Shen, Lihua Zhu, Shipeng Li, Ya Qin Zhang, Richard F Rashid: Accelerating video decoding using a graphics processing unit. Microsoft Corporation, Lee & Hayes PLLC, January 12, 2010: US07646817 (9 worldwide citation)

An accelerated video decoding system utilizes a graphics processing unit to perform motion compensation, image reconstruction, and color space conversion processes, while utilizing a central processing unit to perform other decoding processes.


2
Lihua Zhu, Sridhar Sankuratri, B Anil Kumar, Nadim Abdo: Chroma frame conversion for the video codec. Microsoft Corporation, Jim Sfekas, Peter Taylor, Micky Minhas, August 26, 2014: US08817179 (6 worldwide citation)

Converting a first format frame to one or more second format frames. In one embodiment, a method includes accessing a first format frame using n coefficients, where n is the total number of coefficients used for the Y, U and V planes of the first format frame. The method further includes mapping the ...


3
Lihua Zhu, Haihua Wu, Chung Tao Chu, Richard Hua: Image processing method for boundary resolution enhancement. Corel Corporation, Patterson & Sheridan, December 18, 2012: US08335394 (5 worldwide citation)

An image processing method for boundary resolution enhancement is disclosed. Firstly, an image is transferred into an image layer. Noise of the image layer is removed by a bilateral filter and crisp edges are retained at the same time. Moreover, the image layer is interpolated by an interpolation fi ...


4
Lihua Zhu, Jiancong Luo, Peng Yin, Cristina Gomila: Hypothetical reference decoder for scalable video coding. Thomson Licensing, Robert D Shedd, Paul P Kiel, Xiaoan Lu, November 3, 2015: US09179157 (4 worldwide citation)

The present principles relate to a hypothetical reference decoder (HRD) for a Scalable Video Coding extension for a compression algorithm. One such implementation proposes to modify the H.264/AVC HRD for use with the SVC of AVC. That implementation defines HRD constraints for each interoperability p ...


5
Lihua Zhu, Jiancong Luo, Peng Yin, Jiheng Yang: Coding systems. Thomson Licensing, Robert D Shedd, Brian J Dorini, December 31, 2013: US08619871 (3 worldwide citation)

In an implementation, a supplemental sequence parameter set (“SPS”) structure is provided that has its own network abstraction layer (“NAL”) unit type and allows transmission of layer-dependent parameters for non-base layers in an SVC environment. The supplemental SPS structure also may be used for ...


6
Lihua Zhu, Sridhar Sankuratri, B Anil Kumar, Yongjun Wu, Sandeep Kanumuri, Shyam Sadhwani, Gary J Sullivan: Frame packing and unpacking between frames of chroma sampling formats with different chroma resolutions. Microsoft Technology Licensing, Klarquist Sparkman, May 22, 2018: US09979960

Video frames of a higher-resolution chroma sampling format such as YUV 4:4:4 are packed into video frames of a lower-resolution chroma sampling format such as YUV 4:2:0 for purposes of video encoding. For example, sample values for a frame in YUV 4:4:4 format are packed into two frames in YUV 4:2:0 ...


7
Shir Aharon, Lihua Zhu, B Anil Kumar, Jeroen E van Eesteren: Dynamically updating quality to higher chroma sampling rate. Microsoft Technology Licensing, Klarquist Sparkman, August 7, 2018: US10044974

Innovations in encoding of video pictures in a high-resolution chroma sampling format (such as YUV 4:4:4) using a video encoder operating on coded pictures in a low-resolution chroma sampling format (such as YUV 4:2:0) are presented. For example, according to a set of decision rules, high chroma res ...


8
Shir Aharon, Lihua Zhu, B Anil Kumar, Jeroen E van Eesteren: Dynamically updating quality to higher chroma sampling rate. Microsoft Technology Licensing, Klarquist Sparkman, December 26, 2017: US09854201

Innovations in encoding of video pictures in a high-resolution chroma sampling format (such as YUV 4:4:4) using a video encoder operating on coded pictures in a low-resolution chroma sampling format (such as YUV 4:2:0) are presented. For example, according to a set of decision rules, high chroma res ...


9
Lihua Zhu, Shir Aharon, Yongjun Wu, B Anil Kumar, Jeroen E van Eesteren, Costin Hagiu, Shyam Sadhwani: Encoding/decoding of high chroma resolution details. Microsoft Technology Licensing, August 29, 2017: US09749646

Innovations in encoding and decoding of video pictures in a high-resolution chroma sampling format (such as YUV 4:4:4) using a video encoder and decoder operating on coded pictures in a low-resolution chroma sampling format (such as YUV 4:2:0) are presented. For example, high chroma resolution detai ...


10
Lihua Zhu, B Anil Kumar, Guosheng Sun, Olof L E Mases: Efficient decoding and rendering of inter-coded blocks in a graphics pipeline. Microsoft Technology Licensing, Klarquist Sparkman, December 18, 2018: US10157480

Innovations in video decoding and rendering operations for inter-coded blocks in a graphics pipeline, in which at least some of the operations are performed using a graphics processing unit (“GPU”), are described. For example, a video playback tool receives encoded data for a current picture and per ...