Rentschler, Ingo, Osman, Erol and Jüttner, Martin (2009). Contrast- and illumination-invariant object recognition from active sensation. Spatial vision, 22 (5), pp. 383-396.
Abstract
It has been suggested that the deleterious effect of contrast reversal on visual recognition is unique to faces, not objects. Here we show from priming, supervised category learning, and generalization that there is no such thing as general invariance of recognition of non-face objects against contrast reversal and, likewise, changes in direction of illumination. However, when recognition varies with rendering conditions, invariance may be restored, and effects of continuous learning may be reduced, by providing prior object knowledge from active sensation. Our findings suggest that the degree of contrast invariance achieved reflects functional characteristics of object representations learned in a task-dependent fashion.
Divisions: | College of Health & Life Sciences > School of Psychology College of Health & Life Sciences > Clinical and Systems Neuroscience College of Health & Life Sciences > School of Optometry > Centre for Vision and Hearing Research |
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Publication ISSN: | 1568-5683 |
Last Modified: | 29 Nov 2023 10:16 |
Date Deposited: | 11 Nov 2010 13:24 |
Full Text Link: |
http://www.inge ... 000005/art00003 10.1163/156856809789476128 |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2009-09-01 |
Authors: |
Rentschler, Ingo
Osman, Erol Jüttner, Martin |