?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Neural+model+of+visual+stereomatching%3A+Slant%2C+transparency%2C+and+clouds&rft.creator=Marshall%2C+J.A.&rft.creator=Kalarickal%2C+G.J.&rft.creator=E.B.%2C+Graves&rft.subject=Computational+Neuroscience&rft.subject=Artificial+Intelligence&rft.subject=Machine+Vision&rft.subject=Neural+Nets&rft.subject=Perceptual+Cognitive+Psychology&rft.description=Stereomatching+of+oblique+and+transparent+surfaces+is+described+using+a+model+of+cortical+binocular+%22tuned%22+neurons+selective+for+disparities+of+individual+visual+features+and+neurons+selective+for+the+position%2C+depth%2C+and+3-D+orientation+of+local+surface+patches.+The+model+is+based+on+a+simple+set+of+learning+rules.+In+the+model%2C+monocular+neurons+project+excitatory+connection+pathways+to+binocular+neurons+at+appropriate+disparities.+Binocular+neurons+project+excitatory+connection+pathways+to+appropriately+tuned+%22surface+patch%22+neurons.+The+surface+patch+neurons+project+reciprocal+excitatory+connection+pathways+to+the+binocular+neurons.+Anisotropic+intralayer+inhibitory+connection+pathways+project+between+neurons+with+overlapping+receptive+fields.+The+model's+responses+to+simulated+stereo+image+pairs+depicting+a+variety+of+oblique+surfaces+and+transparently+overlaid+surfaces+are+presented.+For+all+the+surfaces%2C+the+model+(1)+assigns+disparity+matches+and+surface+patch+representations+based+on+global+surface+coherence+and+uniqueness%2C+(2)+permits+coactivation+of+neurons+representing+multiple+disparities+within+the+same+image+location%2C+(3)+represents+oblique+slanted+and+tilted+surfaces+directly%2C+rather+than+approximating+them+with+a+series+of+frontoparallel+steps%2C+(4)+assigns+disparities+to+a+cloud+of+points+at+random+depths%2C+like+human+observers+and+unlike+Prazdny's+(1985)+method%2C+and+(5)+causes+globally+consistent+matches+to+override+greedy+local+matches.+The+model+represents+transparency%2C+unlike+the+model+of+Marr+and+Poggio+(1976)%2C+and+it+assigns+unique+disparities%2C+unlike+the+model+of+Prazdny+(1985).&rft.date=1996-12&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpostscript&rft.identifier=http%3A%2F%2Fcogprints.org%2F25%2F2%2Fstereo9612.ps&rft.identifier=++Marshall%2C+J.A.+and+Kalarickal%2C+G.J.+and+E.B.%2C+Graves++(1996)+Neural+model+of+visual+stereomatching%3A+Slant%2C+transparency%2C+and+clouds.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F25%2F