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12 October 2015 Application of high-precision matching about multisensor in fast stereo imaging
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Abstract
High precision matching of linear array multi-sensor is the key to ensure fast stereo imaging. This paper has presented the general principle of active and passive imaging sensor, designed a high precision matching calibration system of linear array multi-sensor based on large-diameter collimator combined with assisted laser light source, and put forward an optical axis parallelism calibration technology suitable for linear array active and passive imaging sensor. This technology makes use of image acquisition system to obtain spot center, in order to match multi-linear array laser receive and transmit optical axes. At the same time, this paper uses linear visible light sources to extract the optical axis of the laser, then completes the parallelism calibration between lasers receive and transmit optical axes of multi-linear array sensors and active and passive optical axis. The matching relationship between the visible pixel and laser radar detecting element can be obtained when using this technique to calibrate the active and passive imaging sensor. And this relationship is applied to the fast stereo imaging experiment of active and passive imaging sensor and gained good imaging effect.
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Huijing Zhang, Mei Zhou, Haohao Wu, and Dandan Zhang "Application of high-precision matching about multisensor in fast stereo imaging", Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 963928 (12 October 2015); https://doi.org/10.1117/12.2194909
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