By Claude Brezinski

ISBN-10: 2710803410

ISBN-13: 9782710803416

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It is out of the scope of the present article to thoroughly review the abundant literature concerned with the modeling of the motion combination rule: predictions of the “Intersection of Constraints” (IOC, Adelson and Movshon 1982; Lorenceau 1998), “Vector Averaging” (Kim and Wilson 1989), “Feature Based” (Gorea and Lorenceau J. g. Delicato and Derrington 2005; Bowns and Alais 2006). In parallel to psychophysics a number of computational models, with varying degrees of biological plausibility, have been proposed (Koechlin et al.

Perceptual data show that ultimately, a single dot moving consistently in a single direction can be detected in a large cloud of incoherently moving dots (Watamaniuk et al. 1995). Other versions of RDKs have been used, either with dots moving for a limited life time, thus allowing the measure of the temporal integration of motion mechanisms, or dots moving along a random walk thereby allowing the measure of the directional bandwidth of the integration process. One critical outcome of these studies is that global motion coherence depends upon the salience and reliability of each dot motion.

Spatiotemporal energy models for the perception of motion. Journal of the Optical Society of America 2:284–299 Adelson EH, Movshon JA (1982) Phenomenal coherence of moving visual patterns. Nature 300:523–525 Alais D, Lorenceau J (2002) Perceptual grouping in the Ternus display: evidence for an ‘association field’ in apparent motion. Vision Res 42:1005–1016 Allman JM, Miezin FM, McGuinness E (1985) Direction and velocity-specific responses from beyond the classical receptive field in the middle temporal visual area (MT).

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Algorithmes d'acceleration de la convergence: etude numerique by Claude Brezinski

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