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Proceedings Paper

Visual representation of spatiotemporal structure
Author(s): Kerstin Schill; Christoph Zetzsche; Wilfried Brauer; A. Eisenkolb; A. Musto
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Paper Abstract

The processing and representation of motion information is addressed from an integrated perspective comprising low- level signal processing properties as well as higher-level cognitive aspects. For the low-level processing of motion information we argue that a fundamental requirement is the existence of a spatio-temporal memory. Its key feature, the provision of an orthogonal relation between external time and its internal representation, is achieved by a mapping of temporal structure into a locally distributed activity distribution accessible in parallel by higher-level processing stages. This leads to a reinterpretation of the classical concept of `iconic memory' and resolves inconsistencies on ultra-short-time processing and visual masking. The spatial-temporal memory is further investigated by experiments on the perception of spatio-temporal patterns. Results on the direction discrimination of motion paths provide evidence that information about direction and location are not processed and represented independent of each other. This suggests a unified representation on an early level, in the sense that motion information is internally available in form of a spatio-temporal compound. For the higher-level representation we have developed a formal framework for the qualitative description of courses of motion that may occur with moving objects.

Paper Details

Date Published: 17 July 1998
PDF: 11 pages
Proc. SPIE 3299, Human Vision and Electronic Imaging III, (17 July 1998); doi: 10.1117/12.320104
Show Author Affiliations
Kerstin Schill, Lugwig-Maximilians-Univ. (Germany)
Christoph Zetzsche, Lugwig-Maximilians-Univ. (Germany)
Wilfried Brauer, Technische Univ. Muenchen (Germany)
A. Eisenkolb, Lugwig-Maximilians-Univ. (Germany)
A. Musto, Technische Univ. Muenchen (Germany)

Published in SPIE Proceedings Vol. 3299:
Human Vision and Electronic Imaging III
Bernice E. Rogowitz; Thrasyvoulos N. Pappas, Editor(s)

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