Range reconstruction model for 3D gated imaging

ChingSeong Tan; TongYuen Chai; SingYee Chua; Xin Wang; BokMin Goi; Gerald Seet

doi:10.1117/12.2022812

30 September 2013 Range reconstruction model for 3D gated imaging

ChingSeong Tan, TongYuen Chai, SingYee Chua, Xin Wang, BokMin Goi, Gerald Seet

Proceedings Volume 8842, Novel Optical Systems Design and Optimization XVI; 88420R (2013) https://doi.org/10.1117/12.2022812
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Range gated imaging is a remote sensing acquisition which involves the emission of a laser pulse and an intensified camera to gate the reflected laser pulse. Range accuracy has always been an issue especially when a highly accurate reconstructed model is expected as the final outcome. The reflected pulse profile and pulse instability are among the issues that affect the range accuracy when a general solution such as constant offset is not applicable. In this paper, a study to estimate a more accurate model for the reflected pulse profile has been investigated through experiments. T Location-Scale model has been proposed to replace the Gaussian model as the general assumption for range-gated image formation model. The improvement on range accuracy which is around 0.3% has been verified through simulation based on the acquired samples. The series of range-gated images can be reconstructed into a three-dimensional depth map through range calculation. This can be used in the subsequent range reconstruction works.

Citation Download Citation

ChingSeong Tan, TongYuen Chai, SingYee Chua, Xin Wang, BokMin Goi, and Gerald Seet "Range reconstruction model for 3D gated imaging", Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 88420R (30 September 2013); https://doi.org/10.1117/12.2022812

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KEYWORDS

3D modeling

3D image processing

3D image reconstruction

Cameras

Pulsed laser operation

Gated imaging

Imaging systems

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