...换法相同的子带系数,但是内存需求大大减小且仅与图像宽度及采用的TSFB相关;(2)在FIFO缓存中直接生成父子树(Parent-children Tree,PCT).基于PCT的编码器可直接对位于缓存中的PCT进行编码,而无须在SBFB与编码器之间引入中间缓存.
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Every node has a parent (a node higher up the tree that it is a child of), and possibly some children of its own.
每个节点都有父节点(树中更高层次的节点，该节点是它的一个子级)，可能还有自己的子节点。
You can say that a 3-node in a 2-3-4 tree is equivalent to a parent with a red child in a red-black tree, and a 4-node is equivalent to a parent with two red children.
可以说，2-3-4树中的3 -节点等价于红-黑树中有一个红色子节点的父节点，4 -节点等价于有两个红色子节点的父节点。
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