基于EBAPS的昼夜微光成像跟踪系统

Day and Night Low-light Level Imaging and TrackingSystem based on EBAPS

摘要:

电子轰击型有源像素传感器(electron bombarded active pixel sensor,EBAPS)作为一种数字化微光成像器件,具备昼夜条件下清晰成像的能力,相比可见光成像和红外成像,其成像系统具有小型化、低成本和低功耗的显著优势,成为成像领域的一个研究热点。以国产化某型EBAPS微光器件为基础,采用全国产化的设计理念,以FPGA作为核心处理器,完成EBAPS器件驱动电路、图像处理和跟踪电路、显示电路的设计。同时构建了满足昼夜复用的光学系统,搭建了一种小型化的手持成像跟踪系统。实验结果表明,EBAPS昼夜成像系统可在1×10-⁴lx～1×104^{lx照度条件下达到良好的成像和跟踪效果。}

Abstract:

As a digital low-light imaging device, the electron bombarded active pixel sensor (EBAPS) has the ability to get clear image under both day and night conditions. Compared with visible light and infrared imaging, its imaging system has significant advantages of miniaturization, low cost and low power consumption, which has become a research hotspot in the field of imaging. Based on a domestic EBAPS low-light device, adopting the fully domestic design concept and using FPGA as the main processor, EBAPS device driving circuit, image processing and tracking circuit, and display circuit were completed. With an optical system that satisfied the requirements of both day and night was constructed, a miniaturized handheld imaging and tracking system was built. Experimental results show that the EBAPS imaging system can get clear imaging and achieve good tracking effects under illuminance conditions ranging from 1×10?? lx to 1×10? lx.