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Abstract

A wide variety of data structures are used to represent images. At the low level, raw grey-level image or binary images are represented by arrays of pixels (with square, triangular or hexagonal connectivity). Object boundaries are described by fourier descriptors or strings (Freeman chain code, symbolic strings). The adjacency of object regions is described by graph structures such as the region adjacency graph. Finally hierarchical or pyramidal <192> data structures which describe an image at a series of different levels or resolutions have proved useful (eg. quad trees <193>).

Keywords

Optical Flow Fourier Descriptor Symbolic String Quad Tree Intrinsic Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Alan Bundy
    • 1
  1. 1.Department of Artificial IntelligenceUniversity of EdinburghEdinburghScotland, UK

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