1·Using this quadtree, we can encode height data at different resolutions in different regions in the terrain.
使用这种四叉树，我们可以在场景的不同的地方用不同的方法压缩高度数据。
2·This article introduces a digital watermarking technology based on adaptive quadtree fractal coding.
提出了一种基于自适应四叉树分形编码的数字水印技术。
3·This paper proposes a watermarking algorithm based on quadtree fractal coding, which is to search for the optimized matched domain blocks in different regions and to embed the watermarking.
提出了基于四叉树分形编码的水印算法，通过在不同寻找区域中搜索最佳匹配定义域块来嵌入水印。
4·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.
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。
5·A pattern quadtree (PQT) data structure for representing binary images is presented.
提出了表示二值图像的模式四叉树(PQT)数据结构。