Natural and artificial low-level seeing systems - Recovering heading for visually guided navigadon in the presence of self-moving objects

I present a model for recovering the direction of heading of an observer who is moving relative to a scene that may contain self-moving objects. The model builds upon the work of Rieger & Lawton (1985) and Longuet-Higgins & Prazdny (1981), whose approach uses velocity differences computed in...

Full description

Saved in:
Bibliographic Details
Published in:Philosophical transactions of the Royal Society of London. Series B. Biological sciences 1992-09, Vol.337 (1281), p.305-313
Main Author: Hildreth, Ellen C.
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:I present a model for recovering the direction of heading of an observer who is moving relative to a scene that may contain self-moving objects. The model builds upon the work of Rieger & Lawton (1985) and Longuet-Higgins & Prazdny (1981), whose approach uses velocity differences computed in regions of high depth variation to locate the focus of expansion that indicates the observer’s heading direction. We present the results of computer simulations with natural and artificial images and relate the behaviour of the model to Psychophysical observations regarding heading judgements.
ISSN:0962-8436
1471-2970
DOI:10.1098/rstb.1992.0108