Share Email Print
cover

Proceedings Paper

Stereo vision for small targets in IR image sequences
Author(s): Boris Jutzi; Richard Gabler; Klaus Jaeger
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Surveillance systems against missile attacks require the automatic detection of targets with low false alarm rate (FAR). Infrared Search and Track (IRST) systems offer a passive detection of threats at long ranges. For maximum reaction time and the arrangement of counter measurements, it is necessary to declare the objects as early as possible. For this purpose the detection and tracking algorithms have to deal with point objects. Conventional object features like shape, size and texture are usually unreliable for small objects. More reliable features of point objects are three-dimensional spatial position and velocity. At least two sensors observing the same scene are required for multi-ocular stereo vision. Mainly three steps are relevant for successful stereo image processing. First of all the precise camera calibration (estimating the intrinsic and extrinsic parameters) is necessary to satisfy the demand of high degree of accuracy, especially for long range targets. Secondly the correspondence problem for the detected objects must be solved. Thirdly the three-dimensional location of the potential target has to be determined by projective transformation. For an evaluation a measurement campaign to capture image data was carried out with real targets using two identical IR cameras and additionally synthetic IR image sequences have been generated and processed. In this paper a straightforward solution for stereo analysis based on stationary bin-ocular sensors is presented, the current results are shown suggestions for future work are given.

Paper Details

Date Published: 26 November 2001
PDF: 10 pages
Proc. SPIE 4473, Signal and Data Processing of Small Targets 2001, (26 November 2001); doi: 10.1117/12.492795
Show Author Affiliations
Boris Jutzi, FGAN-Forschungsinstitut fuer Optronik und Mustererkennung (Germany)
Richard Gabler, FGAN-Forschungsinstitut fuer Optronik und Mustererkennung (Germany)
Klaus Jaeger, FGAN-Forschungsinstitut fuer Optronik und Mustererkennung (Germany)


Published in SPIE Proceedings Vol. 4473:
Signal and Data Processing of Small Targets 2001
Oliver E. Drummond, Editor(s)

© SPIE. Terms of Use
Back to Top