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publications:imagestatisticssrp [2010/06/09 15:32] external edit
publications:imagestatisticssrp [2014/09/11 11:52] (current)
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 +====== Image Statistics for Surface Reflectance Perception ======
 +==== Lavanya Sharan, Yuanzhen Li, Isamu Motoyoshi, Shin'ya Nishida, and Edward H. Adelson ====
 +===== Abstract =====
 +Human observers can distinguish the albedo of real-world surfaces even when the surfaces are viewed in isolation, contrary to the Gelb effect. We sought to measure this ability and to understand the cues that might underlie it. We took photographs of complex surfaces such as stucco and asked observers to judge their diffuse reflectance by comparing them to a physical Munsell scale. Their judgments, while imperfect, were highly correlated with the true reflectance. The judgments were also highly correlated with certain image statistics, such as moment and percentile statistics of the luminance and subband histograms. When we digitally manipulated these statistics in an image, human judgments were correspondingly altered. Moreover, linear combinations of such statistics allow a machine vision system (operating within the constrained world of single surfaces) to estimate albedo with an accuracy similar to that of human observers. Taken together, these results indicate that some simple image statistics have a strong influence on the judgment of surface reflectance.
 +===== Project page =====
 +[[http://people.csail.mit.edu/lavanya/reflectance.html | Image Statistics & the Perception of Albedo and Gloss]]
 +===== Information =====
---- dataentry pubitem ---- ---- dataentry pubitem ----
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year        : 2008 year        : 2008
created_dt  : 2008-01-01 created_dt  : 2008-01-01
-keyword_tags: adelson +keyword_tags: sharan, li, motoyoshi, nishida, adelson, materialperception 
-www_url     : http://persci.mit.edu/pub_abstracts/ImageStatisticsSRP.html+summary_page: :publications:imagestatisticssrp
pdf_url     : http://persci.mit.edu/pub_pdfs/ImageStatisticsSRP.pdf pdf_url     : http://persci.mit.edu/pub_pdfs/ImageStatisticsSRP.pdf
pageid      : ImageStatisticsSRP pageid      : ImageStatisticsSRP
publications/imagestatisticssrp.1276111961.txt.gz · Last modified: 2010/06/10 09:45 (external edit)