Image encoding method, image decoding method, image encoder,...

Details Image encoding method, image decoding method, image encoder,... Image encoding method, image decoding method, image encoder,...

2007-06-05

2007-06-05

Couso, Jose L. (Department: 2624)

Image analysis

Image compression or coding

Lossless compression

Reexamination Certificate

active

10476376

ABSTRACT:
Orthogonal transform coefficients D6,which are image data of a coded object, are generated by performing predetermined data transform operations on frame image D1(Step S100), and coded data D7is generated (S103) by subjecting the orthogonal transform coefficients D6to arithmetic coding using a predetermined probability table. Then, in variable-length coding for generating the coded data D7,it is set whether or not a probability table is initialized at the slice layer, and a flag indicating the presence of the initialization is added to a header of a predetermined layer. Thus, the image coding method, image decoding method, image coding apparatus, image decoding apparatus, program, computer data signal, and image transmission system, which are capable of enhancing data compression efficiency by coded data in a manner that a probability table is suitably set over the entire coded data, are realized.

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VCEG-M10 H-26L Test Model Long Term No. 8 (TML-8) draft0.

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