Target ranging using passive sensing approaches

Arun K. Dalmia; Mohan M. Trivedi

doi:10.1117/12.210604

2 June 1995 Target ranging using passive sensing approaches

Arun K. Dalmia, Mohan M. Trivedi

Proceedings Volume 2469, Targets and Backgrounds: Characterization and Representation; (1995) https://doi.org/10.1117/12.210604
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

An integrated approach to extract depth, efficiently and accurately, from a sequence of images is presented in this paper. The method combines the ability of the stereo processing to acquire highly accurate depth measurements and the efficiency of the spatial and temporal gradient analysis. As a result of this integration, depth measurements of high quality are obtained at speed approximately ten-times higher than that of the stereo processing. Without any a priori information of the locations of the points in the scene, the correspondence problem in the stereo processing is computationally expensive. In our approach, we use the spatial and temporal gradient analysis, which has been shown to provide depth with high efficiency but limited accuracy, to guide the matching process of stereo. Extensive experiments on real- scenes have shown the ability to acquire depth with mean error of less than 3 percent.

Citation Download Citation

Arun K. Dalmia and Mohan M. Trivedi "Target ranging using passive sensing approaches", Proc. SPIE 2469, Targets and Backgrounds: Characterization and Representation, (2 June 1995); https://doi.org/10.1117/12.210604

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