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Peisong Chen

from San Diego, CA
Age ~51
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Also known as:
Pei Song Chen, Chen Peisong
Phone and address:
17241 Ralphs Ranch Rd, San Diego, CA 92127
Related to:
Ke Wu Chen, 53Yi Chen, 40Felicia Chen, 54Jane J Chen, 38Yun C Bi, 71
Connected to:
Aiyu Chen, 33Allen C Chen, 73Aluna F Chen, 58Anna D Chen, 67Annamaria E Chen, 38Annice B Chen, 31Anthony Chen, 60Ava H Chen, 42Baofeng Chen, 40Barbara K Chen, 45

Peisong Chen Phones & Addresses

  • 17241 Ralphs Ranch Rd, San Diego, CA 92127
  • 2425 21St St, Troy, NY 12180
  • 149 25Th St, Troy, NY 12180
  • Harrison, MI

Work

Company: Qualcomm 2003 to Jul 2011 Position: System engineer, patent agent

Education

Degree: Doctorates, Doctor of Philosophy School / High School: Rensselaer Polytechnic Institute 1998 to 2003 Specialities: Electrical Engineering

Skills

Video Compression

Industries

Semiconductors

Resumes

Resumes

Peisong Chen Photo 1

Principle Scientist

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Location:
San Diego, CA
Industry:
Semiconductors
Work:
Qualcomm 2003 - Jul 2011
System Engineer, Patent Agent
Broadcom 2003 - Jul 2011
Principle Scientist
Education:
Rensselaer Polytechnic Institute 1998 - 2003
Doctorates, Doctor of Philosophy, Electrical Engineering Rensselaer Polytechnic Institute 1998 - 2002
Master of Science, Masters, Applied Mathematics University of Electronic Science and Technology of China 1995 - 1997
Master of Science, Masters, Electrical Engineering
Skills:
Video Compression

Publications

Us Patents

Method For Processing I-Blocks Used With Motion Compensated Temporal Filtering

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US Patent:
7627040, Dec 1, 2009
Filed:
Jun 9, 2004
Appl. No.:
10/864833
Inventors:
John W. Woods - Clifton Park NY, US
Peisong Chen - San Diego CA, US
Yongjun Wu - San Jose CA, US
Assignee:
Rensselaer Polytechnic Institute (RPI) - Troy NY
International Classification:
H04N 7/18
US Classification:
37524026, 37524024, 37524012, 37524013
Abstract:
A method, system, computer program product, and computer system for processing video frames. Frames A and B of a pair of successive video frames each comprise blocks of pixels. Frame A is earlier in time than frame B. A connection state of each pixel in frame B relative to the pixels of frame A is determined. The connection state is a connected state or an unconnected state. Each block in frame B is classified as either unconnected or uni-connected. Uni-connected blocks in frame B satisfying a reclassification criteria are reclassified as being unconnected. Each unconnected block in frame B is categorized as being a P-block or an I-block. Values for the pixels of each I-block in frame B are calculated by spatial interpolation based on values of nearest available neighbor pixels relative to each I-block. A residual error block for each I-block in frame B is generated.

Rate Control For Multi-Layer Video Design

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US Patent:
7974341, Jul 5, 2011
Filed:
May 2, 2006
Appl. No.:
11/416858
Inventors:
Peisong Chen - San Diego CA, US
Tao Tian - San Diego CA, US
Vijayalakshmi R. Raveendran - San Diego CA, US
Assignee:
QUALCOMM, Incorporated - San Diego CA
International Classification:
H04N 7/18
US Classification:
3752401, 37524026
Abstract:
Methods and apparatus for efficient encoding multimedia data, such as live video streams are disclosed. The multimedia data is pre-encoded into multiple layers and characteristics of the pre-encoded data are determined. Based at least in part on the determined characteristics, the multimedia data is encoded into multiple layers.

Video Coding Mode Selection Using Estimated Coding Costs

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US Patent:
8150172, Apr 3, 2012
Filed:
May 4, 2007
Appl. No.:
11/744762
Inventors:
Sitaraman Ganapathy Subramania - San Diego CA, US
Fang Shi - San Diego CA, US
Peisong Chen - San Diego CA, US
Seyfullah Halit Oguz - San Diego CA, US
Scott T. Swazey - San Diego CA, US
Vinod Kaushik - San Diego CA, US
Assignee:
Qualcomm Incorporated - San Diego CA
International Classification:
G06K 9/36
G06K 9/46
G06K 9/00
US Classification:
382232, 382239, 382248, 382251
Abstract:
A method and system for coding mode selection using estimated coding costs. To provide high compression efficiency, for example, an encoding device may attempt to select a coding mode for coding blocks of pixels that codes the data of the blocks with high efficiency. To this end, the encoding device may perform coding mode selection based on estimates of coding cost for at least a portion of the possible modes. The encoding device may estimate the coding cost for the different modes without actually coding the blocks. In fact, in some aspects, the encoding module device may estimate the coding cost for the modes without quantizing the data of the block for each mode. In this manner, the coding cost estimation techniques may reduce the amount of computationally intensive calculations needed to perform effective mode selection.

Channel Switch Frame

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US Patent:
8229983, Jul 24, 2012
Filed:
Sep 25, 2006
Appl. No.:
11/527306
Inventors:
Gordon Kent Walker - Poway CA, US
Vijayalakshmi R. Raveendran - San Diego CA, US
Peisong Chen - San Diego CA, US
Tao Tian - San Diego CA, US
Fang Shi - San Diego CA, US
Scott T. Swazey - San Diego CA, US
Seyfullah Halit Oguz - San Diego CA, US
Amit Rohatgi - San Diego CA, US
Sitaraman Ganapathy Subramania - San Diego CA, US
Phanikumar Bhamidipati - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
G06F 17/30
G06F 17/00
US Classification:
707899, 37524024, 348 1401
Abstract:
Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.

Quantization Parameter Selections For Encoding Of Chroma And Luma Video Blocks

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US Patent:
8279924, Oct 2, 2012
Filed:
Feb 20, 2009
Appl. No.:
12/390325
Inventors:
Peisong Chen - San Diego CA, US
Marta Karczewicz - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04N 7/26
US Classification:
37524003
Abstract:
This disclosure describes rules that may be applied during block-based video coding to ensure that quantization parameter selections for luma blocks will not adversely affect the quality of chroma blocks. In accordance with this disclosure, rate-controlled video encoding occurs in which quantization parameter changes in luma blocks are pre-evaluated to determine whether such quantization parameter changes in luma blocks will also cause quantization changes for chroma blocks. If quantization parameter changes in the luma blocks will also cause quantization changes for chroma blocks, then that quantization parameter change for luma blocks may be skipped and not evaluated. In this way, secondary effects of quantization parameter changes in the luma blocks (with respect to the chroma blocks) can be avoided.

Method And Apparatus For Frame Prediction In Hybrid Video Compression To Enable Temporal Scalability

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US Patent:
8315307, Nov 20, 2012
Filed:
Mar 29, 2005
Appl. No.:
11/093874
Inventors:
Peisong Chen - San Diego CA, US
Vijayalakshmi R. Raveendran - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04N 7/12
US Classification:
37524012
Abstract:
The invention is directed to a method and apparatus for providing temporal scaling frames for use in digital multimedia. The method involves using a removable unidirectional predicted temporal scaling frame communication along with intra-coded frames and/or inter-coded frames. The method involves the ability to selectively remove the temporal scaling frame(s) from being transmitted or decoded in order to satisfy, for example, power limits, data rate limits, computational limits or channel conditions. Examples presented include encoders, transcoders and decoders where the decision to drop the removable temporal scaling frames could be made.

Video Coding Using Transforms Bigger Than 4×4 And 8×8

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US Patent:
8483285, Jul 9, 2013
Filed:
Jul 23, 2009
Appl. No.:
12/508434
Inventors:
Yan Ye - San Diego CA, US
Peisong Chen - San Diego CA, US
Marta Karczewicz - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04N 11/02
US Classification:
37524024, 37524016, 37524018
Abstract:
In a video processing system, a method and system for applying transforms larger than 8×8 and non-rectangular transforms, and generating transform size syntax elements indicative of the transforms for video decoding are provided. The transform size syntax element may be generated by an encoder based on a prediction block size of a video block and the contents of the video block. Further, the transform size syntax element may be generated according to a set of rules to select from 4×4, 8×8, and larger transform sizes during an encoding process. A decoder may perform an inverse transform based on the transform size syntax element and the rules used by the encoder. The transform size syntax element may be transmitted to the decoder as part of the encoded video bitstream.

Video Coding With Large Macroblocks

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US Patent:
8503527, Aug 6, 2013
Filed:
Sep 18, 2009
Appl. No.:
12/562504
Inventors:
Peisong Chen - San Diego CA, US
Yan Ye - San Diego CA, US
Marta Karczewicz - San Diego CA, US
Assignee:
QUALCOMM Incorporated - San Diego CA
International Classification:
H04N 7/12
H04N 11/02
US Classification:
37524012
Abstract:
Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16×16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16×16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.
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Peisong Chen from San Diego, CA, age ~51 Get Report