Generalized comparison of quadtree and bintree storage requirements
نویسندگان
چکیده
The quadtree and the bintree data structures are two variants on the principle of hierarchical regular decomposition applied to image representation. A comparison of the storage requirements for images represented by these two methods is presented. The relative storage efficiency of quadand bintrees is determined by two factors: the relative node sizes for the two representations as determined by the data structure implementation, and the number of quadtree leaf node pairs that merge to form a single leaf node after conversion to the bintree representation. A probabilistic model for images is developed to analyze the merging probability of quadtree leaf node pairs. The analysis reveals that exactly one half of such pairs are expected to merge. Empirical results closely match these calculations. The resulting storage efficiency for a number of representative implementations is discussed. Each of the data structures has implementations (and associated applications) for which it is more space efficient.
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ورودعنوان ژورنال:
- Image Vision Comput.
دوره 11 شماره
صفحات -
تاریخ انتشار 1993