Jaehong Chon

US Patent:

20130258049, Oct 3, 2013

Filed:

Mar 14, 2013

Appl. No.:

13/829774

Inventors:

Jaehong Chon - San Diego CA, US
Marta Karczewicz - San Diego CA, US

Assignee:

QUALCOMM INCORPORATED - San Diego CA

International Classification:

H04N 7/26

US Classification:

348 42, 37524002

Abstract:

Systems, methods, and devices are disclosed that encode video, decode video, or both. These systems, methods, and devices generate and/or receive an enable syntax element in an encoded bitstream, wherein the enable syntax element indicates whether a loop filter is turned on or turned off for a group of video blocks. They also generate or receive one or more additional syntax elements identifying parameters for the loop filter for the group of video blocks in response to the enable syntax element indicating the loop filter is turned on for the group of video blocks. These systems, methods, and devices also perform the loop filter for the group of video blocks based on the received enable syntax element.

US Patent:

20210400273, Dec 23, 2021

Filed:

Apr 19, 2021

Appl. No.:

17/234596

Inventors:

- Cupertino CA, US
Jaehong CHON - Cupertino CA, US
Alexandros TOURAPIS - Milpitas CA, US
David W. SINGER - San Francisco CA, US

International Classification:

H04N 19/124
H04N 19/82
H04N 19/186
H04N 19/172

Abstract:

Improved video coding and decoding techniques are described, including techniques to derive quantization step sizes adaptively with quantization step size table templates. Quantization techniques described provide finer-grained control over quantization with a more flexible quantization step size especially at higher degrees of quantization. This may result in improved overall compression quality. Other coding parameters, such as in-loop filtering parameters, may be derived based on the more flexible quantization parameters.

US Patent:

20160261861, Sep 8, 2016

Filed:

Jun 11, 2015

Appl. No.:

14/737252

Inventors:

- San Diego CA, US
Wei-Jung Chien - San Diego CA, US
Xianglin Wang - San Diego CA, US
Jaehong Chon - San Diego CA, US
In Suk Chong - San Diego CA, US
Marta Karczewicz - San Diego CA, US
Woo-Shik Kim - San Diego CA, US
Xin Zhao - San Diego CA, US

International Classification:

H04N 19/103
H04N 19/567

Abstract:

A video encoding device comprises a memory configured and at least one processor configured to: determine whether a metric meets a condition based on statistics, wherein the statistics are associated with a first video encoding mode checking order and a second video encoding mode checking order, responsive to determining that the metric meets the condition, select a first encoding mode checking order to encode the first block of video data responsive to determining that the condition is not met, select a second encoding mode checking order different from the first encoding mode checking order to encode the first block of video data, update the statistics based on the selected first or second encoding mode checking order, and encode a second block of video data, based on the updated statistics, and using the first or second mode checking order.

US Patent:

20160261870, Sep 8, 2016

Filed:

Jun 11, 2015

Appl. No.:

14/737271

Inventors:

- San Diego CA, US
Wei-Jung Chien - San Diego CA, US
Xianglin Wang - San Diego CA, US
Jaehong Chon - San Diego CA, US
In Suk Chong - San Diego CA, US
Marta Karczewicz - San Diego CA, US
Woo-Shik Kim - San Diego CA, US
Xin Zhao - San Diego CA, US

International Classification:

H04N 19/147
H04N 19/14
H04N 19/174
H04N 19/176

Abstract:

A video encoding device comprises a memory configured to store video data and at least one processor configured to: select one of a full rate-distortion (RD) checking scheme or a fast RD checking scheme, determine an RD cost associated with encoding a block of the video data based on the selected full RD checking scheme or fast RD checking scheme, determine a partitioning scheme for the block based on the determined RD cost, and encode the block using the determined partitioning scheme based on the determined RD cost.