Wm. Theimer et Ha. Mallot, PHASE-BASED BINOCULAR VERGENCE CONTROL AND DEPTH RECONSTRUCTION USINGACTIVE VISION, CVGIP. Image understanding, 60(3), 1994, pp. 343-358
Citations number
26
Categorie Soggetti
Computer Sciences, Special Topics","Computer Science Software Graphycs Programming
We present a technique for guiding vergence movements for an active st
ereo camera system and for calculating dense disparity maps. Both proc
esses are described in the same theoretical framework based on phase d
ifferences in complex Gabor filter responses, modeling receptive field
properties in the visual cortex. While the camera movements are compu
ted with input images of coarse spatial resolution, the disparity map
calculation uses a finer resolution in the scale space. The correspond
ence problem is solved implicitly by restricting the disparity range a
round zero disparity (Panum's area in the human visual system). The ve
rgence process is interpreted as a mechanism to minimize global dispar
ity, thereby setting a 3D region of interest for subsequent disparity
detection. The disparity map represents smaller local disparities as a
n important cue for depth perception. Experimental data for the integr
ated performance of vergence in natural scenes followed by disparity m
ap calculations are presented. (C) 1994 Academic Press, Inc.