Acta Stereologica



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Frédérique Robert & Eric Dinet

A relation between distance maps and radial sampling

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Radial sampling is a non-homogeneous sampling scheme: a particular point is chosen as the sampling origin and, as the distance from this point increases, data integration becomes coarser and coarser. This scheme has common features with the human visual system and more accurately with the notion of focus of attention. In this way, an image is sampled according to the radial distance from a focusing point. This process can imply the use of distance maps, as we need to define concentric rings centred at the focusing point and supporting sets for data integration. In order to decrease the resolution of the processed images, the rate of information integration must increase with the radial distance. Our study deals with the relation between a sampling process biologically inspired and the classical distance maps.

Keywords : distance map, focus of attention, image filtering, non-homogeneous sampling

To cite this article

Frédérique Robert & Eric Dinet, «A relation between distance maps and radial sampling», Acta Stereologica [En ligne], Volume 18 (1999), Number 3 - Nov. 1999, 351-360 URL :

About: Frédérique Robert

Institut Supérieur d'Electronique de la Méditerranée, Place Georges Pompidou, 83000 Toulon, France; CPE Lyon, Laboratoire Image, Signal et Acoustique, BP 2077, 43 boulevard du 11 Novembre, 69616 Villeurbanne cedex, France

About: Eric Dinet

Institut d'Ingénierie de la Vision - UMR CNRS 5516, 3, rue Javelin Pagnon, 42023 St-Etienne cedex 02, France