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The Computer Journal 1987 30(1):87-92; doi:10.1093/comjnl/30.1.87
© 1987 by British Computer Society
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Compaction Techniques for Raster Scan Graphics using Space-filling Curves

A. J. Cole *

Department of Computational Science, University of St Andrews, St Andrews, Fife, KY16 9SX, UK

A method of scanning raster graphics pictures based on the use of Peano and Hilbert space-filling polygons is discussed. This leads to significant data reduction for transmission or storage of pictures. Quadtree encoding and a generalisation of this occurs as a special case. The aliasing problem in raster scan graphics is also alleviated if a space-filling curve scan is used to refresh the screen. A possible application to pattern recognition is briefly discussed.

Received July 1985.

* Department of Computational Science, University of St Andrews, St Andrews, Fife, KY16 9SX


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