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The Bogart Effect
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Abstract
While a geometry-based eye-gaze estimation strategy has been the basis of many theories regarding the direction of one’s gaze, such a strategy relies on relatively detailed curvature information and therefore functions suboptimally under low-resolution viewing conditions. Partly in response to this concern, the past decade has seen the rise of luminance-based theories of eye-gaze estimation. The idea of luminance-based estimation of gaze direction arose from the observation that contrast negation affects eye-gaze perception, and an early demonstration and possible explanation for this phenomenon was offered by Sinha and named the “Bogart effect.” The Bogart Effect is an illusion of perceived gaze reversal in contrast negated images. It provides clues regarding the heuristics the visual system uses to robustly estimate gaze in real-world settings. This chapter discusses this illusion and related concepts.
Oxford University PressNew York
Title: The Bogart Effect
Description:
Abstract
While a geometry-based eye-gaze estimation strategy has been the basis of many theories regarding the direction of one’s gaze, such a strategy relies on relatively detailed curvature information and therefore functions suboptimally under low-resolution viewing conditions.
Partly in response to this concern, the past decade has seen the rise of luminance-based theories of eye-gaze estimation.
The idea of luminance-based estimation of gaze direction arose from the observation that contrast negation affects eye-gaze perception, and an early demonstration and possible explanation for this phenomenon was offered by Sinha and named the “Bogart effect.
” The Bogart Effect is an illusion of perceived gaze reversal in contrast negated images.
It provides clues regarding the heuristics the visual system uses to robustly estimate gaze in real-world settings.
This chapter discusses this illusion and related concepts.
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