An efficient technique of texture representation in segmentation-based image coding schemes
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In segmentation-based image coding techniques the image to be compressed is first segmented. Then, the information is coded describing the shape and the interior of the regions. A new method to encode the texture obtained in segmentation-based coding schemes is presented. The approach combines 2-D linear prediction and stochastic vector quantization. To encode a texture, a linear predictor is computed first. Next, a codebook following the prediction error model is generated and the prediction error is encoded with VQ. In the decoder, the error image is decoded first and then filtered as a whole, using the prediction filter. Hence, correlation between pixels is not lost from one block to another and a good reproduction quality can be achieved.
CitacióTorres, L., Casas, J., Campins, J. An efficient technique of texture representation in segmentation-based image coding schemes. A: IEEE International Conference on Image Processing. "ICIP 1995: International Conference on Image Processing: October 23-29, 1995". Washington, DC: IEEE IEEE, 1995, p. 588-591.
Versió de l'editorhttp://ieeexplore.ieee.org/document/537703/