Proceedings chapter

A relaxation network for a feature-driven visual attention system

Published inNeural and Stochastic Methods in Image and Signal Processing, Editors Su-Shing Chen, p. 542-552
Presented at San Diego (USA)
  • SPIE Proceedings; 1766
Publication date1992

In this paper an attention module is described, which can be used by an active vision system to generate gaze changes. This module is based on a bottom-up, feature-driven analysis of the image. The results are regions of the input image which contain strange features, i.e., locations of the most `interesting' and `important' information. The method proposed for detecting such regions is based on the decomposition of the input image into a set of independent retinotopic feature maps. Each map represents the value of a certain attribute computed on a set of low-level primitives such as contours and regions. Relevant objects can be detected if the corresponding primitives have a feature value strongly different from the neighboring ones. Local comparisons of feature values are used to compute such measures of `difference' for each feature map and give rise to a corresponding set of conspicuity maps. In order to obtain a single measure of interest for each location and to make the process robust to noise, a relaxation algorithm is run on the set of conspicuity maps. A dozen iterations are sufficient to detect a binary mask identifying the attention regions. Results on real scenes are presented.

Citation (ISO format)
MILANESE, Ruggero, BOST, Jean Marc, PUN, Thierry. A relaxation network for a feature-driven visual attention system. In: Neural and Stochastic Methods in Image and Signal Processing. San Diego (USA). [s.l.] : [s.n.], 1992. p. 542–552. (SPIE Proceedings)
  • PID : unige:47828

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