DECODING WITH EMBEDDED DENOISING
First Claim
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1. A method for decoding digital signals, comprising the actions of:
- receiving an input digital signal which is encoded;
estimating the noise and signal statistics of said digital signal and decoding said digital signal using motion compensation which references denoised reference blocks; and
accordingly outputting a decoded and denoised digital signal.
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Abstract
Methods and systems for denoising embedded digital video decoding. Prediction and residue block of a current frame are obtained from motion vector. Variance of residue block is calculated using prior reference blocks, and a causal temporal linear minimum square error estimator is used to calculate a filter coefficient. The residue block is modified using the filter coefficient, and an output digital bitstream of blocks of pixels of the current frame is produced using the modified residue block and prior denoised prediction value of prior frames.
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Citations
18 Claims
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1. A method for decoding digital signals, comprising the actions of:
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receiving an input digital signal which is encoded; estimating the noise and signal statistics of said digital signal and decoding said digital signal using motion compensation which references denoised reference blocks; and accordingly outputting a decoded and denoised digital signal.
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2. A method for decoding digital signals, comprising the actions of:
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receiving an input digital signal which is encoded; estimating the noise and signal statistics of said digital signal and decoding said digital signal, using two motion compensation operations;
wherein said two motion compensation operations use different respective reference frames which are differently denoised;wherein said statistics is used to produce and output a decoded and denoised digital signal. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A method for decoding digital video signals, comprising the actions of:
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receiving an input bitstream of a video pixel which is encoded; estimating signal and noise statistics of said video pixel, using two motion compensation operations;
wherein said two motion compensation operations use different respective reference frames which are differently denoised; anddecoding said video pixel wherein said statistics is used to produce and output a decoded and denoised digital video pixel. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18-74. -74. (canceled)
Specification