【摘要】 图像稀疏分解是一种新的图像分解方法,可以将图像分解为很简洁的近似表达形式。在图像稀疏分解的基础上,对分解出的数据进行压缩。通过对分解结果数据分布规律进行分析,提出了量化和编码的方案,期望在低比特率情况下,得到较好的解码图像质量。实验结果表明基于稀疏分解的图像压缩方法得到的解压图像有较好的主观图像质量。更多还原

【Abstract】 Sparse decomposition is a new method for decomposing image data into a compact image approximate representation.Image sparse representation data got by sparse decomposition method are compressed by quantization and coding.In order to get better decoded image quality at low bit rate,the distribution rules of sparse decomposition data are studied.Based on these rules,quantization and coding schemes are proposed.The experimental results show that the decoded image’s subjective quality is good.更多还原