Toscani, Matteo and Valsecchi, Matteo and Gegenfurtner, Karl R. (2012) The Optimal Estimator of Objects’ Lightness. In: Predicting Perceptions: Proceedings of the 3rd International Conference on Appearance. Lulu Press, Edinburgh UK, pp. 167-169. ISBN 978-1-4716-6869-2
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We have recently shown that eye movements have an effect on lightness estimation of real objects. Observers tended to fixate points with above-average luminance and they overestimated the objects’ lightness. The matched lightness was higher when observers were forced to fixate a bright region of the object than when they fixated a darker region. In the present work we performed a simulation with a physically based rendering system, showing that this is an efficient and simple heuristic for the visual system to arrive at accurate and invariant judgments of lightness.
|Item Type:||Book Section|
|Uncontrolled Keywords:||Lightness perception, albedo, estimator reliability, physically based rendering.|
|Depositing User:||Dr Stefano Padilla|
|Date Deposited:||07 May 2012 14:05|
|Last Modified:||08 May 2012 12:36|
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