Signal source encoding method based on distributed compressive sensing technology
A technology of compressed sensing and source coding, which is applied in the field of source coding, can solve problems such as no improvement effect, and achieve the effect of improving recovery effect, low computational complexity, and improving performance
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0036] Because the video image signal source often presents a certain degree of sparsity, for example, the signal has the structural characteristics of sparse representation in the DCT domain and a transform domain of the wavelet domain, so it has the base output using CS technology. However, when using the traditional source coding method based on the DCT transform domain, it is necessary to perform Nyquist sampling on the data source to obtain a large amount of original data, which requires a huge sampling and storage cost, and then discards the original data when performing the DCT transform operation. Most of the sampled data, resulting in waste of storage and transmission, such as figure 1 (A) shown.
[0037] The mechanism of the inventive m...
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