On Scale and Resolution in Active Analysis of Local Image Structure

Kjell Brunnstrom, Jan-Olof Eklundh and Tony Lindeberg

Technical report ISRN KTH/NA/P--90/24--SE.

Shortened version in Image and Vision Computing, 8, 289--296, 1990.

Abstract

Focus-of-attention is extremely important in human visual perception. If computer vision systems are to perform tasks in a complex, dynamic world they will have to be able to control processing in a way that is analogous to visual attention in humans. Problems connected to foveation (examination of selected regions of the world at high resolution) are examined. In particular, the problem of finding and classifying junctions from this aspect is considered. It is shown that foveation as simulated by controlled, active zooming in conjunction with scale-space techniques allows for robust detection and classification of junctions.

Keywords: foveation, scale, resolution, junction classification, scale-space techniques, focus-of-attention, active vision, histogram analysis

Related work: (Integration with head-eye system) (Focus-of-attention)