Abstract
The human visual system correctly groups features and can even interpret random-dot videos induced by imaging natural dynamic scenes. Remarkably, this happens even if perception completely fails when the same information is presented frame by frame. We study this property of surprising dynamic perception with the first goal of proposing a new detection and spatio-temporal grouping algorithm for such signals when, per frame, the information on objects is both random and sparse. The algorithm is based on temporal integration and statistical tests of unlikeliness, the a contrario framework. The striking similarity in performance of the algorithm to the perception by human observers, as witnessed by a series of psychophysical experiments, leads us to see in it a simple computational Gestalt model of human perception.
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Dagès, T., Lindenbaum, M., Bruckstein, A.M. (2020). Seeing Things in Random-Dot Videos. In: Palaiahnakote, S., Sanniti di Baja, G., Wang, L., Yan, W. (eds) Pattern Recognition. ACPR 2019. Lecture Notes in Computer Science(), vol 12046. Springer, Cham. https://doi.org/10.1007/978-3-030-41404-7_14
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