摘要
金字塔型块预测编码结合了小波变换和分形编码的思路 ,用于图象编码可取得较好的效果。编码实验表明 ,这种算性能优于 JPEG和分形 Quadtree编码算法。针对该算法编码时间长的缺点 ,提出了邻域搜索法 ,使编码时间明显缩短。
Combined with wavelet transforming and the clue of fractal coding and proved by experiments, we understand that Predictive Pyramid Coding can obtain better performance than JPEG and fractal quad tree method. The encoding time is greatly shortened by neighboring region search algorithm against the disadvantage of long time wasting in encoding of the conventional algorithm.
出处
《桂林电子工业学院学报》
2000年第1期13-17,共5页
Journal of Guilin Institute of Electronic Technology
基金
广西自然科学资金资助项目 !(合同号 :桂科自 8710 0 9
965 2 0 2 7)
关键词
小波变换
分形编码
图像编码
预测编码
wavelet transform, fractal coding, neighboring region search
