Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2011-03-08
2011-03-08
Ahmed, Samir A (Department: 2624)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240160, C375S240120, C375S240020, C375S240010, C382S236000
Reexamination Certificate
active
07903731
ABSTRACT:
Methods and transcoders are disclosed for video transcoding input macroblocks to an output macroblock. One of the methods estimates an output macroblock mode for the video transcoding. A spatial weight is determined based on size of overlapping areas of each of the input macroblocks with a correlation area that is correlated with the output macroblock. A discrete cosine transform (DCT) weight is determined based on a number of zero DCT coefficients of each of the input macroblocks that overlap the correlation area. The output macroblock mode is estimated based on the spatial weight and the DCT weight.
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patent: 7245661 (2007-07-01), Kim et al.
patent: 2003/0133512 (2003-07-01), Moni et al.
patent: 2003/0206590 (2003-11-01), Krishnamachari
patent: 1020020057525 (2002-07-01), None
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Bae Jong-Woo
Cho Jin-Soo
Choe Yoon-Sik
Seo Dong-Wan
Ahmed Samir A
Li Ruiping
Myers Bigel Sibley & Sajovec P.A.
Samsung Electronics Co,. Ltd.
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