Quadtree
A quadtree is a tree data structure in which each internal node has exactly four children. Quadtrees are the two-dimensional analog of octrees and are most often used to partition a two-dimensional space by recursively subdividing it into four quadrants or regions. The data associated with a leaf cell varies by application, but the leaf cell represents a "unit of interesting spatial information".
Quadtree - Wikipedia Jump to content From Wikipedia, the free encyclopedia Tree data structure that partitions a 2D area This article has an unclear citation style . The references used may be made clearer with a different or consistent style of citation and footnoting . ( April 2015 ) ( Learn how and when to remove this message ) Quadtree Type Tree Invented 1974 Invented by Raphael Finkel and J.L. Bentley Time complexity in big O notation Operation Average Worst case Space complexity A point-region quadtree with point data. Bucket capacity 1. Quadtree compression of an image step by step. Lef
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