Cite as:
Chessa M, Sabatini S P, Solari F, 2009, "A virtual reality tool for disparity statistics in the peripersonal space" Perception 38 ECVP Abstract Supplement, page 32

A virtual reality tool for disparity statistics in the peripersonal space

M Chessa, S P Sabatini, F Solari

In stereoscopic vision research, attempts of assessing the disparity cues in natural settings during active vision tasks yield to several studies on the disparity statistics (Liu et al, 2008 Journal of Vision 8 1 - 14). Though systematic analyses of this issue in the peripersonal space (large vergence angles) in real-world situations (ie, 3-D exploration of a real environment) are still lacking, a tool has been developed that uses the virtual reality to simulate the actual projections impinging upon the retinas of an active visual system rather than render 3-D visual information for stereoscopic display. The simulator works on the 3-D data acquired by a laser scanner and performs the version and vergence movements following the strategies adopted by different active stereo vision systems, including biomimetic ones. The ground truth disparities of the projections of the scene points can be computed for each different fixation point, thus enabling disparity statistics in real-world situations. Moreover, the corresponding stereo image pairs, together with the actual position and orientation of the eyes, are available and can be used to assess and benchmark neural models for depth estimation and control strategies of the active vision systems.

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