...深入的分析和研究,在分割效果相近的情况下,为了节省分割运算时间,本文在实验中采取了与四叉树分割(Quad tree based segmentation)相结合的多尺度分割(Multiresoluation segmentation)方法,选取最优的分割尺度及参数。
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In addition, the proposed new method is further combined with adaptive quadtree partition to obtain a good trade off between compression ratio and image quality. Superior coding perfermance is confirmed by simulation tests as compared to the conventional fractal coding.
进一步地，我们将新算法结合到自适应四叉树分割的结构中，在压缩比和图象质量之间取得较好的折衷，实验结果优于相同条件下的传统分形压缩算法。
参考来源 - 一种基于去均值的加速收敛的分形压缩算法 in C·2,447,543篇论文数据，部分数据来源于NoteExpress
为了得到可变的位率，在分形图像压缩中经常采用四叉树分割方法。
Quadtree partitions are often used in fractal image compression to achieve variable bit rates.
本文采用四叉树分割多边形，用以实现多边形的色彩填充及其相互之间的运算。
In this paper, The quadtree is adopted to divide polygons to realize color filling and calculation of polygons are also introduced.
为了在加速编码过程的同时提高压缩比，将快速卷积算法与基于四叉树分割的邻域搜索算法相结合。
In order to raise compress ratio while accelerating encoding process, an algorithm com - bining fast convolution with quadtree partitioning based on neighbor search is adopted.
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