Abstract:
:It is generally believed that there is an absolute disparity limit for binocular fusion; objects with disparities within this limit, known as Panum's fusional area, will appear fused and single, while objects with disparities outside the limit appear double. It is demonstrated, however, that the disparity gradient, rather than the disparity magnitude, dictates binocular fusion when several objects occur near one another in the visual field. The disparity gradient is defined as the difference between the disparities of neighboring objects divided by their angular separation. If this ratio exceeds a critical value (approximately 1) then fusion does not occur, even though the absolute disparities of the individual objects may be well within the classical Panum's area. This discovery leads to the reinterpretation of several enigmatic phenomena in stereopsis, including Panum's limiting case.
journal_name
Perceptionjournal_title
Perceptionauthors
Burt P,Julesz Bdoi
10.1068/p090671subject
Has Abstractpub_date
1980-01-01 00:00:00pages
671-82issue
6eissn
0301-0066issn
1468-4233journal_volume
9pub_type
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