EMCCD视频图像处理算法设计直方图均衡
毕业论文关键词： EMCCD 直方图均衡化 灰度统计 图像增强 FPGA VHDL 图像传感器
Title: The EMCCD video image processing algorithm —— histogram equalization Abstract： The EMCCD (electron multiplying charge coupled device) video image processing algorithm ——histogram equalization is based on the probability theory of gray histogram statistics and transform applications. The video image processing system finally realized on the hardware platform of FPGA. Histogram equalization is a widely used space image enhancement technique. Usually used to increase the image's global contrast. By this method, the brightness could be better distributed on the histogram. This can be used to enhance the local contrast without affecting the overall contrast. This paper mainly introduces the algorithm design and software & hardware realization of EMCCD video image gray histogram equalization and improved the traditional video image equalization algorithms by removing the floating point in operation process. Analyzed the two layer collaborative system structure and working principle of operation as well as the function and significance in the process and transmission of video image processing. The test results show that the system is stable and imaging clear，the exposure time and gain control effect obvious and the histogram equalization processing of video images successfully implement, meet the design requirements.
Keywords: EMCCD Histogram-equalization Gray-statistics Image-enhancement FPGA VHDL Image-sensor
目录
1绪论3
1.1本课题研究的背景和意义3
1.2EMCCD视频图像直方图均衡化原理概述.3
1.3视频图像处理技术发展现状.4
1.4论文主要研究内容5
2EMCCD成像系统构架..7
2.1EMCCD结构.7
2.2EMCCD工作过程8
2.2.1光电转换与存储..8
2.2.2电荷的转移9
2.2.3电荷的检测9
2.3FPGA视频图像处理平台简介10
2.4EMCCD系统整体架构.11
3直方图均衡化算法设计.12
3.1设计思路.12
3.1.1基本算法.12
3.1.2算法改进方案12
3.2算法matlab仿真检验..13
3.2.1matlab仿真效果图..13
3.2.2仿真结果分析15
3.3EMCCD视频图像均衡化算法硬件实现..16
3.3.1EMCCD视频图像灰度直方图统计模块..16
3.3.2EMCCD视频图像灰度直方图均衡化模块16
3.3.3EMCCD视频图像灰度直方图均衡化映射模块..17
3.3.4直方图均衡化模块集成及整体构架方式..18
3.4系统时序支持模块..19
3.4.1帧转移模块..19
3.4.2行转移模块..19
3.4.3串行读出模块19