Abstract
Conventional stereophotogrammetry uses a canonical configuration in which the optical axes of both cameras are parallel. However, if we follow lessons from evolution and swivel the cameras so that their axes intersect in a fixation point, then we obtain considerably better depth resolution. We modified our real-time stereo hardware to handle verging axis configurations and show that the predicted depth resolution is practically obtainable. We compare two techniques for rectifying images for verging configurations. Bouguet’s technique gives a simpler geometry - the iso-disparity lines are straight and the familiar reciprocal relationship between depth and disparity may still be used. However when the iso-disparity lines are the Veith-Muller circles, slightly better depth resolution may be obtained in the periphery of the field of view - at the expense of a more complex conversion from disparity to depth.
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Jawed, K., Morris, J. (2011). Verging Axis Stereophotogrammetry. In: Ho, YS. (eds) Advances in Image and Video Technology. PSIVT 2011. Lecture Notes in Computer Science, vol 7087. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25367-6_18
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DOI: https://doi.org/10.1007/978-3-642-25367-6_18
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