Image analysis – Image compression or coding – Interframe coding
Reexamination Certificate
2006-09-07
2010-06-15
Couso, Jose L (Department: 2624)
Image analysis
Image compression or coding
Interframe coding
Reexamination Certificate
active
07738714
ABSTRACT:
Provided are a method of and apparatus for lossless video encoding and decoding, in which a differential residual block generated by calculating a difference between pixels of a residual block resulting from interprediction is encoded, thereby improving the compression rate. The method of lossless video encoding includes performing interprediction between a reference frame and a current frame in units of a predetermined-size block to generate a predicted block of a current block to be encoded, generating a residual block composed of residual signals corresponding to differences between pixels of the predicted block and the current block, calculating differences between the residual signals of the residual block in a predetermined direction and generating a differential residual block based on the calculated differences, and performing entropy-encoding on the differential residual block.
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Han Ki-hun
Hur Jae-ho
Kim Dae-yeon
Lee Yung-lyul
Couso Jose L
Industry-Academia Coorperation Group of Sejong University
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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