Image analysis – Image compression or coding – Adaptive coding
Reexamination Certificate
2006-03-27
2010-06-15
Chen, Wenpeng (Department: 2624)
Image analysis
Image compression or coding
Adaptive coding
Reexamination Certificate
active
07738716
ABSTRACT:
Provided is an encoding method capable of reducing a blocking phenomenon that occurs when moving-images are encoded and decoded. The method includes: performing a first encoding operation on an input image using a first quantization coefficient; generating a reconstructed image of the encoded image; calculating a difference between corresponding partial images of the reconstructed image and the input image; and performing a second encoding operation on the calculated difference using a second quantization coefficient smaller than the first quantization coefficient. Using the second encoded difference, a decoding unit can reconstruct an image of a block boundary portion more elaborately with a small number of bits, thereby significantly reducing the blocking phenomenon in the decoding operation.
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Chen Wenpeng
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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