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...

and used directly, which is called a linear quadtree, or they can be used to build a pointer based quadtree. The input points are usually scaled in each...

infinite grid, with the pattern in question centered near the origin. A quadtree (with sharing of nodes) is used to represent the field. A node at the kth...

subdividing it into eight octants. Octrees are the three-dimensional analog of quadtrees. The word is derived from oct (Greek root meaning "eight") + tree. Octrees...

are merged to create the segmented result. The technique incorporates a quadtree data structure, meaning that there is a parent-child node relationship...

generalization of other spatial tree structures such as k-d trees and quadtrees, one where hyperplanes that partition the space may have any orientation...

Dynamic visualization of the quadtree structure of the Barnes-Hut algorithm for the 2D N-body problem...

paradigms. Finkel and J.L. Bentley created the data structure called the quadtree. Finkel was born in Chicago. He entered the University of Chicago, where...

An example of a recursive binary space partitioning quadtree for a 2D index...

complex objects as compared using an arbitrary metric. Octree PH-tree Quadtree R-tree: Typically the preferred method for indexing spatial data. Objects...

constant k > 1. The algorithm uses shifted quadtrees. The key concept of the algorithm is alignment to the quadtree grid. An object of size r is called k-aligned...

Implicit k-d tree Min/max k-d tree Relaxed k-d tree Adaptive k-d tree Quadtree Octree Linear octree Z-order UB-tree R-tree R+ tree R* tree Hilbert R-tree...

{content-type: text/plain OR application/vnd.shp } .qix — an alternative quadtree spatial index used by MapServer and GDAL/OGR software {content-type: application/vnd...

called a Böröczky tiling) is a tiling of the hyperbolic plane, resembling a quadtree over the Poincaré half-plane model of the hyperbolic plane. The tiles are...

pushdown transducer p-way merge sort qm sort qsort quadratic probing quadtree quadtree complexity theorem quad trie quantum computation queue quicksort Rabin–Karp...

partitioning index with a structure similar to that of a quadtree or octree. However, unlike quadtrees, it uses a splitting policy based on tries and similar...

tree, B+ tree, B*-tree, UB-tree) Dancing tree Fusion tree k-d tree Octree Quadtree R-tree Radix tree Top tree Lehman, Tobin J.; Carey, Michael J. (25–28 August...

Grid Reference System Universal Transverse Mercator coordinate system Quadtree Geohash https://www.researchgate.net/publication/389945471_Natural_Area_Coding_System...

subpavings. In computation, a well-known application of subpaving in R² is the Quadtree data structure. In image tracing context and other applications is important...

Wróblewski, P.; Midura, M. (October 2021). "A Finite Volume Method using a Quadtree Non-Uniform Structured Mesh for Modeling in Electrical Capacitance Tomography"...

Cueto, E.; Doblaré, M. (2005). "A natural neighbour Galerkin method with quadtree structure". Int. J. Numer. Methods Eng. 63 (6): 789–812. Bibcode:2005IJNME...

fluid mechanics) using various data structures (including of course the quadtree/octree) and optimized operators for iteration, derivation, etc. Solvers...

regular objects such as heightfields and polygon meshes tend to employ quadtrees and octrees, which are specialized variants of a 3D bounding box hierarchy...

called superblocks of 64×64 pixels which are adaptively subpartitioned in a quadtree coding structure. They can be subdivided either horizontally or vertically...

Kirchhoffer; Haricharan Lakshman; et al. "Video Compression Using Nested Quadtree Structures, Leaf Merging and Improved Techniques for Motion Representation...

easier to implement, performs worse than a quadtree implementation. They find that as it is, [...] a quadtree data structure seems more adapted than the...

compression efficiency, AVS2 adopts a block partition structure based on the quadtree, including the CU (Coding Unit), PU (Prediction Unit) and TU (Transform...

Quadtrees can be used for hierarchical path finding...

largest coding unit size. The arrangement of CUs in a CTB is known as a quadtree since a subdivision results in four smaller regions. CUs are then divided...

products, and transportation". 2011 Hanan Samet For "pioneering research on quadtrees and other multidimensional spatial data structures for sorting spatial...