Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yingwei Chen1
Jong Chul Ye1
Date of Patent
December 5, 2006
1Patent Application Number
101576621
Date Filed
May 29, 2002
1Patent Primary Examiner
Patent abstract
A video coding system and method for coding an input frame in which the evolution of discrete cosine transform (DCT) coefficients is modeled as a Laplace-Markov process, the system comprising: a base layer processing system for generating a base layer reconstruction; an enhancement layer processing system for generating an enhancement layer reconstruction; and an entropy constrained scalar quantizer (ECSQ) system for descritizing a prediction residual between the input frame and an estimation theoretic (ET) prediction output; wherein the ECSQ system utilizes an ECSQ that comprises a uniform threshold quantizer with a deadzone size defined by the equation:
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