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Catalogue of Artificial Intelligence Techniques

Catalogue of Artificial Intelligence Techniques

   

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View Maths as: Images | MathML


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Image Data Structures

Keywords: Fourier descriptors, array, binary image, pixels, region adjacency graph

Categories: Pattern Recognition and Image Processing , Vision


Author(s): Dave Reynolds

A wide variety of data structures are used to represent images. At the low level, raw grey-level images 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 data structures which describe an image at a series of different levels or resolutions have proved useful (e.g., Quad Trees).


References:


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Strict Standards: Non-static method DB::isManip() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 2200

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Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1666

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB.php on line 1387

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /usr/share/pear/DB/common.php on line 1683

Strict Standards: Non-static method DB::isError() should not be called statically, assuming $this from incompatible context in /group/project/aicat/web/lib/database.php on line 113
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