高逼真激光雷达场景建模与分析

doi:10.3969/j.issn.1001-2400.2015.03.013

Abstract

Abstract:

In order to improve the fidelity of laser imaging simulation, the ray tracing method is used to construct a laser radar system which can get the synthetic laser radar images of 3D scenes. By using the laser scattering law, the illumination model widely used in computer graphic is modeled into a laser radar imaging model for high-fidelity simulation. The improvements of the model are follows: ①adding the direct reflection term, ②changing the multiple light source model in luminance into the multiple reflection model in power, and ③introducing the detector noise into the model. Laser radar images are calculated for a typical 3D scene. A comparison of the calculated results with the real laser radar images is made, which shows that the calculated result is similar to the one received by the laser radar system. And quantitative analysis shows that there also exists a difference, with the reasons are analyzed.

Key words: ray tracing, laser imaging, rending scene, scattering computing

CLC Number:

TN958.98

CHAI Guobei;ZHANG Jianqi;LIU Delian;TIAN Limin;GUO Bingtao. Laser radar imaging model for high-fidelity simulation and its analysis[J].J4, 2015, 42(3): 73-77.

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Laser radar imaging model for high-fidelity simulation and its analysis

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