系统仿真学报 ›› 2015, Vol. 27 ›› Issue (3): 579-583.

• 虚拟现实与可视化 • 上一篇    下一篇

基于几何映射的遥感成像光照仿真方法

王晨昊   

  1. 中国人民解放军91635部队, 北京 102249
  • 收稿日期:2014-03-12 修回日期:2014-06-16 出版日期:2015-03-08 发布日期:2020-08-20
  • 作者简介:王晨昊(1980-),男,辽宁新民人,博士,工程师,研究方向为遥感信息处理与应用。

Light Illumination Simulation Approach for Remote Sensing Image Based on Geometric Mapping

Wang Chenhao   

  1. PLA Unit of 91635, Beijing 102249, China
  • Received:2014-03-12 Revised:2014-06-16 Online:2015-03-08 Published:2020-08-20

摘要: 光照条件是影响可见光遥感成像结果的重要因素,是成像仿真领域的一项重要研究内容。提出一种基于几何映射的遥感成像光照仿真方法,以单幅遥感图像样本和三维模型为输入,获取不同光照条件仿真图像。对输入的样本图像进行几何定标,并通过逆向渲染提取场景的可见光反射特性数据;利用场景几何模型,通过几何映射方法获取样本图像各像素点的几何信息;根据设定的光照条件在图像空间进行成像仿真计算,获取不同光照条件的仿真结果。实验表明,该方法能够实现较为真实的光照仿真。

关键词: 遥感图像, 可见光成像, 成像仿真, 重光照

Abstract: Light Illumination is one of the most important parts of imaging simulation research. A new light illumination simulation approach for remote sensing image based on geometry mapping was proposed. The first step was the geometric calibration of the input image, and the visible light reflection property was extracted by the inverse rendering approach; Second, geometric information of each pixel in the input image was obtained by geometric mapping; and the simulation output of new light illumination condition could be got with the imaging calculation in the image space. Results show that the new approach can achieve simulation image of high reliability.

Key words: remote sensing image, visible light imaging, imaging simulation, relighting

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