The Effect of Variability in Stereo Camera Calibration and Registration Parameters on Three-Dimensional Reconstruction Distance Estimates

Report No. ARL-TR-3140
Authors: William F. Oberle
Date/Pages: February 2004; 50 pages
Abstract: The process of calculating distance from binocular or stereo vision is termed three-dimensional (3-D) reconstruction. Unlike some other approaches for estimating distance, e.g., LADAR (laser detection and ranging), this is not a direct measurement but is a geometric analysis requiring the knowledge of experimentally measured and mathematically derived parameters. Variability in these parameters results in variability in the calculated distances. This report investigates the effect that the variability in these parameters has on computed 3-D reconstruction distances. Results indicate that sub-pixel and milliradian accuracy are required for the parameters in order to have less than a 10% variation in the 3-D reconstruction process.
Distribution: Approved for public release
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Last Update / Reviewed: February 1, 2004