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Proceedings Paper

Efficient Depth Estimation Using Trinocular Stereo
Author(s): Charles Hansen; Nicholas Ayache; Francis Lustman
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Paper Abstract

We present recent advancements in our passive trinocular stereo system. These include a technique for calibrating and rectifying in a very efficient and simple manner the triplets of images taken for trinocular stereovision systems. After the rectification of images, epipolar lines are parallel to the axes of the image coordinate frames. Therefore, potential matches between the three images satisfy simpler relations, allowing for a less complicated and more efficient matching algorithm. We also describe a more robust and general control strategy now employed in our trinocular stereo system. We have also developed an innovative method for the recon-struction of 3-D segments which provides better results and a new validation technique based on the observation that neighbors in the image should be neighbors in space. Experiments are presented demonstrating these advancements.

Paper Details

Date Published: 5 January 1989
PDF: 8 pages
Proc. SPIE 1003, Sensor Fusion: Spatial Reasoning and Scene Interpretation, (5 January 1989); doi: 10.1117/12.948922
Show Author Affiliations
Charles Hansen, INRIA (France)
Nicholas Ayache, INRIA (France)
Francis Lustman, INRIA (France)


Published in SPIE Proceedings Vol. 1003:
Sensor Fusion: Spatial Reasoning and Scene Interpretation
Paul S. Schenker, Editor(s)

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