Image coding method and coding device
An image coding and coding technology, applied in image communication, multi-programming device, code conversion, etc., can solve problems such as inability to flexibly use device resources, large impact, and large performance impact.
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Embodiment 1
[0320]According to the image coding method of Embodiment 1 of the present invention, one parameter among a plurality of coding parameters is determined, and other parameters are determined based on the set frame rate and the above-mentioned determined parameters.
[0321] Fig. 1 is a block diagram showing the configuration of an image coding apparatus according to Embodiment 1 of the present invention. As shown in the figure, the image encoding apparatus according to the first embodiment is composed of an encoder 101 and an encoding parameter determining apparatus 102. The encoder 101 includes a DCT processor 103, a quantizer 104, a variable length encoder 105, A bit stream generator 106, an inverse quantizer 107, an inverse DCT processor 108, and a predictive image generator 109, while the encoding parameter determination device 102 includes a resolution reference table 110.
[0322] Encoder 101 inputs data composed of a series of digitized still images as input image data, p...
Embodiment 2
[0356] According to the image encoding method of Embodiment 2 of the present invention, the encoding parameters are determined according to the set frame rate corresponding to the processing capability of the corresponding encoding device, and the processing capability is judged according to the operating frequency of the control device (CPU).
[0357] Fig. 4 is a block diagram showing the structure of an image coding apparatus according to Embodiment 2 of the present invention. As shown in the figure, the image encoding device according to the second embodiment is composed of an encoder 201, an encoding parameter determining device 202, and a processing capability determiner 211. The encoder 201 includes a DCT processor 203, a quantizer 204, and Variable length encoder 205 , bit stream generator 206 , inverse quantizer 207 , inverse DCT processor 208 and predictive image generator 209 , and encoding parameter determination device 202 includes encoding pattern reference table 2...
Embodiment 3
[0384] In the image encoding method of Embodiment 3 of the present invention, the encoding parameters are determined based on the frame rate set according to the processing capacity of the corresponding encoding device, and the processing capacity is judged according to the processing time.
[0385] Fig. 6 is a block diagram showing the structure of an image coding apparatus according to Embodiment 3 of the present invention. As shown in the figure, the image encoding device according to the third embodiment is composed of an encoder 301, an encoding parameter determining device 302, and a processing capability determiner 311. The encoder 301 includes a DCT processor 303, a quantizer 304, and Variable length encoder 305 , bit stream generator 306 , inverse quantizer 307 , inverse DCT processor 308 and predictive image generator 309 , and encoding parameter determination device 302 includes encoding pattern reference table 310 .
[0386] The encoder 301 is the same as the encod...
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Abstract
Description
Claims
Application Information
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