Image analysis – Image compression or coding – Including details of decompression
Reexamination Certificate
2006-04-25
2006-04-25
Johns, Andrew W. (Department: 2621)
Image analysis
Image compression or coding
Including details of decompression
C382S250000
Reexamination Certificate
active
07035471
ABSTRACT:
JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit (41) and to a class tap extraction circuit (42). The prediction tap extraction circuit (41) and the class tap extraction circuit (42) extract what is needed from the quantized DCT coefficients to form prediction taps and class taps. A classification circuit (43) effects classification based on the class taps. A coefficient table storage unit (44) sends tap coefficients corresponding to the classes resulting from the classification to a sum of products circuit (45), which sum of products circuit (45) then effects linear predictive calculations, using the tap coefficients and the class taps, to generate decoded picture data.
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Hamamatsu Toshihiko
Kunihiro Takeshi
Morifuji Takafumi
Nakaya Hideo
Nishikata Takeharu
Alavi Amir
Frommer & Lawrence & Haug LLP
Johns Andrew W.
Levy Paul A.
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