Refined block-based predictive coding and decoding of a picture

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United States of America Patent

PATENT NO 12120321
APP PUB NO 20210084313A1
SERIAL NO

17036828

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Abstract

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The refinement of block-based predictive coding and decoding of pictures as applicable in, e.g., hybrid video codecs, using additional reconstructed samples or residuals is described. An apparatus for block-based predictive decoding of a picture is described. The apparatus includes a combiner configured to combine a residual signal a predetermined block of the picture and a reference signal for the predetermined block so as to obtain a first spectrum, the residual signal correcting a prediction error of a prediction of the predetermined block of the picture; a reducer configured to perform thresholding on the first spectrum to obtain a second spectrum so that coefficients below a threshold value are set to a predefined value; an extractor configured to obtain from the second spectrum a modified version of the residual signal; and a reconstructor block configured to decode the predetermined block of the picture from the data stream on the basis of the modified version of the residual signal.

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Patent Owner(s)

Patent OwnerAddress
FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E VMUNICH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hinz, Tobias Berlin, DE 75 686
Marpe, Detlev Berlin, DE 504 7656
Nguyen, Phan Hoang Tung Berlin, DE 26 30
Pfaff, Jonathan Berlin, DE 43 145
Rasch, Jennifer Berlin, DE 2 2
Schäfer, Michael Berlin, DE 60 267
Schwarz, Heiko Berlin, DE 327 6290
Tech, Gerhard Berlin, DE 82 349
Wiegand, Thomas Berlin, DE 628 9646

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