| 何峰,汪方斌,严瑞阳,董必春.基于FPGA的简易偏振成像系统设计[J].安徽建筑大学学报,2022,30(): |
| 基于FPGA的简易偏振成像系统设计 |
| Design of Simple Polarization Imaging System Based on FPGA |
| 投稿时间：2021-08-19 修订日期：2021-09-28 |
| DOI： |
| 中文关键词: 偏振成像 FPGA 偏振度 |
| 英文关键词: polarization imaging FPGA degree of polarization |
| 基金项目:安徽省自然科学基金(2008085UD09, 1808085ME125)、安徽省教育厅高校自然科学重点项目(KJ2020A0487,KJ2019A0795)、安徽省重点研发计划(1804a09020009)。 |
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| 中文摘要: |
| 偏振成像是一种获取目标物表面光学反射偏振特征的新型成像技术，与传统成像相比可以获取更多的目标物信息。本文设计了一种简易轻便应用于多场景下的偏振成像采集系统。系统由光学成像模块、FPGA主芯片、上位机图像获取三部分组成，实现图像的采集、传输与显示。FPGA主芯片驱动图像传感器，采集经内置偏振分光棱镜将携带目标物表面信息的反射光分解成P分量和S分量图像，通过解析获得目标物的偏振度图像；同时分析了系统可能产生误差的原因并进行了标定。实验结果表明：本文设计的成像系统在不同场景下，均可稳定、实时采集到P分量和S分量图像，解析出偏振度图像。 |
| 英文摘要: |
| Polarized imaging is a new technology to obtain the polarization characteristic of the light from the observed target surface, by which can obtain more target information than the traditional optical?intensity imaging. In this paper, a polarization imaging acquisition system for multiple scene application consisting of optical imaging module, FPGA main chip and computer image calculation subsystem was designed, by which image acquisition, transmission and display can be realized at the same time. The FPGA main chip drives the image sensor to collect the reflected light and carry the object surface information into P and S component images by an inlay polarization prism, then the polarization degree image of the target can be obtained by parsing. Meanwhile, the possible measurement error reasons were also analyzed and the system was calibrated. The experimental results show that the P and S component images can be acquired and the?corresponding polarization degree image of the target can be calculated steadily and in real-time by the imaging system designed in this paper. |
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