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Efficient VQ-based image coding scheme using inverse function and lossless index coding
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DOI：10.1016/j.sigpro.2013.03.034.png)
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Abstract
En 中文
A novel image coding scheme based on vector quantization (VQ) is proposed in this paper. The goal of the proposed scheme is to provide better image qualities of the compressed grayscale images while keeping low bit rates. To achieve the goal, the encoding of the inverse image block is cooperated with the VQ scheme. In addition, the lossless index coding process is employed in the proposed scheme to cut down the required bit rates. From the results, it is shown that the proposed scheme achieves better image qualities than VQ while keeping low bit rates. (c) 2013 Elsevier B.V. All rights reserved.
Keywords:
Image compression
Vector quantization
Inverse function
Lossless index coding
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