Design and performance characterization of simultaneous reflectance and surface-mapping laser scanner for application in underwater inspection

Frank M. Caimi; Donna M. Kocak; Coy Colquitt

doi:10.1117/12.351650

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2 July 1999 Design and performance characterization of simultaneous reflectance and surface-mapping laser scanner for application in underwater inspection

Frank M. Caimi, Donna M. Kocak, Coy Colquitt

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Proceedings Volume 3787, Optical Scanning: Design and Application; (1999) https://doi.org/10.1117/12.351650
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

In this paper we describe an approach and present results from a recently developed system that produces video-rate, 3D maps of the image space using a scanning laser configuration and a patented micro-channel plate intensified detector. The scene is viewed from a separate location to provide depth information via triangulation. The detector provides an estimate of position of the apparent landing spot of the laser beam for each scan angle from which a depth estimate is calculated. The system is designed to scan an approximate 15 X 15 degree field-of-view at distances from 1.5 to 2.5 meters with a resolution of 1.5 cm at rates of 10 - 30 full images per second, and can accommodate range gating to reduce scattered light interference.

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Frank M. Caimi, Donna M. Kocak, and Coy Colquitt "Design and performance characterization of simultaneous reflectance and surface-mapping laser scanner for application in underwater inspection", Proc. SPIE 3787, Optical Scanning: Design and Application, (2 July 1999); https://doi.org/10.1117/12.351650

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