基于PBRT的光学遥感成像仿真

摘要

Optical remote sensing imaging simulation is a complicated system engineering, involving multiple interdisciplinary fields, and its engineering implementation is difficult. Using open source software, the development cost of optical imaging simula-tion can be effectively reduced and the development cycle can be shortened. According to the principle of optical remote sensing imaging, based on the PBRT which was a physically based rendering system, the simulation system of the optical remote sensing imaging for a three-dimensional scene was designed and implemented. By the measured spectral data, simulation results under dif-ferent weather, illumination and optical band were obtained.%光学遥感成像仿真是一个复杂的系统工程，涉及多个交叉学科领域，工程实现难度大。基于开源软件进行光学成像仿真可有效降低研发成本、缩短开发周期。根据光学遥感成像原理，在基于物理的真实感渲染系统PBRT的基础上，设计并实现了基于三维场景的光学遥感成像仿真系统，并采用实测光谱数据获得了不同天候、光照和波段下的仿真结果。