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Spatial integration in structure from motion.

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons83885

Di Luca,  M
Research Group Multisensory Perception and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Di Luca, M., Domini, F., & Caudek, C. (2004). Spatial integration in structure from motion. Vision Research, 44(26), 3001-3013. doi:10.1016/j.visres.2004.07.004.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-D743-5
Zusammenfassung
In three experiments we investigated whether the perception of 3D structure from the optic-flow involves a process of spatial integration. The observeramp;amp;amp;lsquo;s task was to judge the 3D orientation of local velocity field patches. In two conditions, the patches were presented either in isolation, or as part of a global optic-flow. In Experiment 1, the global optic-flow was a linear velocity field. In Experiment 2, the patches were embedded in a randomly perturbed linear velocity field. In Experiment 3, the local patches belonged to a smoothly curved surface. The results of these three experiments lead to two main conclusions: (1) a process linking spatially separated patches into global entities does affect the perception of local surface orientation induced by the optic-flow, and (2) linearity or smoothness of the global velocity field are not necessary conditions for spatial integration.