Computer graphics data coding apparatus, decoding apparatus, coding method and decoding method
A technology of computer graphics and data coding, which is applied in image coding, image data processing, computing, etc., and can solve problems such as cost increase
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no. 1 example
[0054] figure 1 The block diagram of is showing the complete structure of the computer graphics data encoding apparatus according to the first embodiment of the present invention.
[0055] As shown in the figure, the computer graphics data encoding device of the first embodiment includes an input unit 101, a preprocessing encoding unit 102, a code number control / encoding unit 103, an entropy information accumulation unit 104, an encoding generation unit 105, and an entropy encoding unit 106, The extraction unit 107 extracts the information coding unit 108 and the output unit 109 .
[0056] The input unit 101 acquires computer graphics data.
[0057]Preprocessing The encoding unit 102 performs preprocessing such as quantization, normalization, and the like on the data acquired by the input unit 101 .
[0058] The code number control / encoding unit 103 subjects the codes generated by the preprocessing encoding unit 102 to processing for controlling the number of codes generated...
no. 2 example
[0283] Figure 14 The block diagram of exemplifies the complete configuration of the computer graphics data encoding apparatus according to the second embodiment. exist figure 1 and Figure 14 In , the same reference numerals denote the same elements, and they will not be described in detail again.
[0284] As shown in the figure, the computer graphic data encoding device of the second embodiment includes an input unit 101, a preprocessing encoding unit 102, a code number control / encoding unit 103, a code accumulation unit 1401, a codeword information accumulation unit 1402, and a code generation unit 1403 , an entropy coding unit 106 , an extraction unit 107 , an extraction information coding unit 108 and an output unit 109 .
[0285] The code accumulation unit 1401 accumulates the portion of the code to be subjected to entropy encoding generated by the code amount control / encoding unit 103 .
[0286] The codeword information accumulation unit 1402 pre-accumulates informa...
no. 3 example
[0345] A third embodiment of the invention is directed to a decoder for decoding the code generated in the first embodiment.
[0346] Figure 21 The entire configuration of a computer graphics data decoding device according to a third embodiment of the present invention is shown.
[0347] as in Figure 21 As shown in , the computer graphic data decoding device of the third embodiment includes an input unit 2101, an extracted information decoding unit 2102, a decoded information generating unit 2103, a decoded information accumulating unit 2104, an entropy decoding unit 2105, a data decoding unit 2106, post-processing decoding unit 2107 and output unit 2108.
[0348] The input unit 2101 acquires data encoded by the method applied in the first embodiment.
[0349] Extracted information decoding unit 2102 acquires code parts generated by extracted information encoding unit 108 of the first embodiment from input unit 21201, and decodes them.
[0350] The decoding information g...
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