Method and device for lossy encoding data and corresponding device for reconstructing data
AssigneeThomson Licensing
InventorsWenfei Jiang, Zhibo Chen, Fan Zhang
Life of this patent
Estimating the term…
Loading patent…
AssigneeThomson Licensing
InventorsWenfei Jiang, Zhibo Chen, Fan Zhang
Estimating the term…
The invention proposes modification of quantized coefficients for signalling of a post-processing method. Therefore, it is proposed a method for lossy compress-encoding data comprising at least one of image data and audio data. Said method comprises determining quantized coefficients using a quantization of a discrete cosine transformed residual of a prediction of said data. Said method further comprises modifying said quantized coefficients for minimizing rate-distortion cost wherein distortion is determined using a post-processed reconstruction of the data, the post-processed reconstruction being post-processed according to a postprocessing method, and compress-encoding said modified coefficients. In said proposed method, the post-processing method is that one of n>1 different predetermined post processing method candidates whose position in an predetermined order of arrangement of the post processing method candidates equals a remainder of division, by n, of a sum of the modified coefficients. Doing so removes the overhead of flags in the bit stream.
A method for lossy encoding data having at least one of image data or audio data, said method comprising:
A method for reconstructing data having at least one of image data and audio data, said method comprising:
Device for lossy encoding data having at least one of image data and audio data, comprising:
A device for reconstructing data having at least one of image data and audio data, comprising:
Dependencies are inferred from the claim text.