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Krit Panusopone

from San Diego, CA
Age ~52

Krit Panusopone Phones & Addresses

  • 12134 Iron View Row, San Diego, CA 92128
  • 7528 Charmant Dr, San Diego, CA 92122 (858) 457-2937
  • Houston, TX

Work

Company: Nokia Mar 2019 Position: Principal scientist

Education

Degree: Master of Business Administration, Masters School / High School: University of California, Los Angeles

Skills

H.264 • Signal Processing • Embedded Systems • Mpeg2 • Digital Signal Processors • Debugging

Industries

Telecommunications

Resumes

Resumes

Krit Panusopone Photo 1

Principal Scientist

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Location:
7528 Charmant Dr, San Diego, CA 92122
Industry:
Telecommunications
Work:
Nokia
Principal Scientist

Arris
Distinguished Advanced Research Engineer

Arris Apr 2013 - Mar 2015
Principal Advanced Research Engineer

Motorola May 2012 - Apr 2013
Distinguished Member of Technical Staff
Education:
University of California, Los Angeles
Master of Business Administration, Masters
Skills:
H.264
Signal Processing
Embedded Systems
Mpeg2
Digital Signal Processors
Debugging

Publications

Us Patents

Efficient Motion Estimation For An Arbitrarily-Shaped Object

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US Patent:
6483874, Nov 19, 2002
Filed:
Jan 27, 1999
Appl. No.:
09/238838
Inventors:
Krit Panusopone - San Diego CA
Xuemin Chen - San Diego CA
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
H04N 712
US Classification:
37524008, 37524009, 382243
Abstract:
An efficient motion estimation technique for an arbitrarily-shaped video object reduces the number of searches for motion estimation for shape coding and texture coding. The technique can be easily employed in an MPEG-4 encoder for coding Video Object Planes (VOPs). In a pixel loop, an mÃm block traverses a reference video image with the video object, and the alpha plane value of each pixel is examined. If the alpha plane values in a block are not all the same, this indicates the block overlaps the object boundary. Accordingly, a shape coding mask value for the coordinate of a reference pixel in the block, such as the top, left pixel, is set to â1â. As the block traverses the reference video image, a shape coding mask that generally follows the shape of the object boundary is developed to define a shaped reference image search area. A texture coding mask is defined similarly when the blocks overlap or are inside the object. When the same search range is used for both shape and texture motion estimation, the texture coding mask can be defined by ORing the shape coding mask with any blocks inside the object but not already included in the shape coding mask.

Video Size Conversion And Transcoding From Mpeg-2 To Mpeg-4

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US Patent:
6647061, Nov 11, 2003
Filed:
Jun 9, 2000
Appl. No.:
09/590928
Inventors:
Krit Panusopone - San Diego CA
Xuemin Chen - San Diego CA
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
H04N 712
US Classification:
37524012
Abstract:
A transcoder architecture that provides the lowest possible complexity with a small error, e. g. , for converting an MPEG-2 bitstream into an MPEG-4 bitstream. The transcoder reads header information from an input bitstream and provides a corresponding header in the new format for the output bitstream. In one embodiment, a low complexity front-to-back transcoder (with B frames disabled) avoids the need for motion compensation processing. In another embodiment, a transcoder architecture that minimizes drift error (with B frames enabled) is provided. In another embodiment, a size transcoder (with B frames enabled) is provided, e. g. , to convert a bitstream of ITU-R interlaced video coding with MPEG-2 MP ML into a simple profile MPEG-4 bitstream which contains SIF progressive video suitable for a streaming video application. For spatial downscaling of field-mode DCT blocks, vertical and horizontal downscaling techniques are combined to use sparse matrixes to reduce computations.

Digital Transcoder With Logo Insertion

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US Patent:
6658057, Dec 2, 2003
Filed:
Aug 31, 2000
Appl. No.:
09/653620
Inventors:
Xuemin Chen - San Diego CA
Krit Panusopone - San Diego CA
Fan Ling - Santa Clara CA
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
H04N 712
US Classification:
375240
Abstract:
A method and apparatus are disclosed by which a translucent logo is inserted into the transcoded digital bitstream of an MPEG transcoder without changing the digital nature of the bitstream. Such an MPEG transcoder has cascaded decoding and encoding sections. A translucent logo is generated and is added to the reconstructed video image produced by the decoder section of the MPEG transcoder upstream of the transcoders encoding section. The encoding section of the transcoder then encodes the bitstream which includes the translucent logo.

Methods And Apparatus For Sub-Pixel Motion Estimation

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US Patent:
6859494, Feb 22, 2005
Filed:
Jul 27, 2001
Appl. No.:
09/917185
Inventors:
Krit Panusopone - San Diego CA, US
David M. Baylon - San Marcos CA, US
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
H04B001/66
US Classification:
37524016
Abstract:
The methods and apparatus is for sub-pel motion estimation of a block of pixels. Search points which are redundant between the various full pel and sub-pel searches during the motion estimation process of a block of pixels are disregarded. Matching costs for the block or sub-block at each such redundant search point are not calculated and therefore are not stored.

Macroblock Level Adaptive Frame/Field Coding For Digital Video Content

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US Patent:
6980596, Dec 27, 2005
Filed:
Nov 20, 2002
Appl. No.:
10/301290
Inventors:
Limin Wang - San Diego CA, US
Rajeev Gandhi - San Diego CA, US
Krit Panusopone - San Diego CA, US
Ajay Luthra - San Diego CA, US
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
H04B001/66
US Classification:
37524016, 37524024, 37524025, 37524026, 37524015, 37524012, 382233, 382238, 382236, 382235
Abstract:
A method and system of encoding and decoding digital video content. The digital video content comprises a stream of pictures which can each be intra, predicted, or bi-predicted pictures. Each of the pictures comprises macroblocks that can be further divided into smaller blocks. The method entails encoding and decoding each of the smaller blocks in each picture in said stream of pictures in either frame mode or in field mode.

Frequency Coefficient Scanning Paths For Coding Digital Video Content

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US Patent:
6987888, Jan 17, 2006
Filed:
Jul 29, 2004
Appl. No.:
10/902392
Inventors:
Limin Wang - San Diego CA, US
David M. Baylon - San Marcos CA, US
Krit Panusopone - San Diego CA, US
Rajeev Gandhi - San Diego CA, US
Yue Yu - San Diego CA, US
Ajay Luthra - San Diego CA, US
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
G06K 9/36
US Classification:
382236
Abstract:
A method and system of transform-based encoding, decoding, and bitstream generation of digital video content. The digital video content comprises a stream of pictures, slices, or macroblocks which can each be intra, predicted or bi-predicted pictures. The pictures, slices, or macroblocks comprise blocks of pixels. The method comprises scanning frequency coefficients from each of the block's two dimensional array of frequency coefficients in a manner that is vertically biased.

Global Motion Estimation For Sprite Generation

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US Patent:
7084877, Aug 1, 2006
Filed:
Jun 6, 2000
Appl. No.:
09/587961
Inventors:
Krit Panusopone - San Diego CA, US
Xuemin Chen - San Diego CA, US
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
G06T 17/00
US Classification:
345474
Abstract:
A complete automatic sprite generation system uses first-order prediction for an initial estimation, delayed elimination for outlier rejection, and field-based sprite generation for an interlaced source. Optionally, higher-order prediction for the initial estimation may be used to handle more complicated motion. The invention is useful for generating sprites, e. g. , for 3D sequences, stock tickers, interactive advertising and other uses. The invention addresses outlier and fast motion problems that are not handled by the existing MPEG-4 scheme. Automatic sprite generation is provided by performing shot detection (e. g. , panning or zooming) on the input images to provide a group of successive images that share a common scene for use in forming a sprite. The initial estimation of motion parameter data for forming the sprite is improved by using the motion parameter data of at least two previous input images. Delayed outlier rejection is performed in two steps by eliminating pixels whose error increases in successive sprite iterations.

Frequency Coefficient Scanning Paths For Coding Digital Video Content

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US Patent:
7088867, Aug 8, 2006
Filed:
Jul 29, 2004
Appl. No.:
10/902330
Inventors:
Limin Wang - San Diego CA, US
David M. Baylon - San Marcos CA, US
Krit Panusopone - San Diego CA, US
Rajeev Gandhi - San Diego CA, US
Yue Yu - San Diego CA, US
Ajay Luthra - San Diego CA, US
Assignee:
General Instrument Corporation - Horsham PA
International Classification:
G06K 9/36
US Classification:
382236
Abstract:
A method and system of transform-based encoding, decoding, and bitstream generation of digital video content. The digital video content comprises a stream of pictures, slices, or macroblocks which can each be intra, predicted or bi-predicted pictures. The pictures, slices, or macroblocks comprise blocks of pixels. The method comprises scanning frequency coefficients from each of the block's two dimensional array of frequency coefficients in a manner that is vertically biased.
Krit Panusopone from San Diego, CA, age ~52 Get Report