Automated method for estimation of terrain height from SPOT stereo pair images

Hiroshi Hanaizumi; Tsutomu Hibino; Sadao Fujimura

doi:10.1117/12.154678

31 August 1993 Automated method for estimation of terrain height from SPOT stereo pair images

Hiroshi Hanaizumi; Tsutomu Hibino; Sadao Fujimura

Author Affiliations +

Proceedings Volume 1941, Ground Sensing; (1993) https://doi.org/10.1117/12.154678
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

An automated method is proposed for terrain height estimation from SPOT stereo pair images. This method consists of two procedures: registration between stereo pair images and terrain height estimation. In the first stage, stereo pair images are roughly rectified from initially selected 4 ground control point (GCP) pairs. Automated process is used for generating GCP pairs in the second stage. For the derivation of epipolar constraint, images are registered by piece-wise Affine transformation (ATF) using these GCP pairs. Accurate rectification is made by dynamic programming (DP) matching process applied to pair of epipolar lines. Terrain height is obtained from corresponding points on the stereo pair images by using a triangulation technique. Mean height error of this method is evaluated as less than 30 m.

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Hiroshi Hanaizumi, Hiroshi Hanaizumi, Tsutomu Hibino, Tsutomu Hibino, Sadao Fujimura, Sadao Fujimura, } "Automated method for estimation of terrain height from SPOT stereo pair images", Proc. SPIE 1941, Ground Sensing, (31 August 1993); doi: 10.1117/12.154678; https://doi.org/10.1117/12.154678

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