摘要CMOS图像传感器在工业和科研上的应用越来越广泛。数字接口已经被大量应用于紫外与微光相机的图像输出中。作为实验室“高速并行实时图像处理开发系统”项目的一部分，本文开展了基于FPGA的CMOS图像传感器的数字接口成像系统研究。81685

本文首先对传感器的发展和Cameralink数字接口进行了简介，然后介绍了成像系统硬件平台的总体框架及实验中所使用的器件。搭建了成像系统硬件平台后，接着在FPGA平台上进行了CMOS驱动模块、动态范围调整模块和数字输出模块的逻辑设计。图像动态范围调整运用了直方图均衡化和线性拉伸两种算法，并在matlab上进行了仿真实验，对两种算法进行评价分析，选择合适的算法在FPGA平台上实现。最后在搭建好的硬件平台上进行成像，图像通过Cameralink数字接口输出，并对输出图像和原图像进行比较分析。

关键词  CMOS  Cameralink  FPGA   matlab  动态范围

毕业设计说明书外文摘要

Title    Digital Interface CMOS Imaging Technology    Based on FPGA                             

Abstract With the development of sensor technology and digital processing technology, CMOS image sensors used in industry and research are increasingly widespread。 Digital interface is a kind of image transmission interface of high frame rate and high resolution image transmission, it has been widely used in low-light camera and UV camera。 As a part of the "high speed parallel real time image processing development system" project in the laboratory, this paper study a digital interface imaging system of CMOS image sensor based on FPGA。

Firstly, this paper makes a presentation of the CMOS sensor’s development and the Cameralink interface standard ，and then introduces overall framework of the imaging system hardware platform and the device used in the experiment．After the system hardware platform is built, the logic design of CMOS drive module, dynamic range adjustment module and digital output module is carried out on the FPGA platform。 Image dynamic range adjustment use two algorithms in matlab simulation experiments, evaluation and analysis of the two algorithms, implemented on FPGA platform。 Finally, comparative analysis of the system output image in the hardware platform has been built for imaging．

Keywords  CMOS  Cameralink  FPGA  matlab   dynamic Range

目   次

1 绪论 1

1。1 CMOS图像传感器发展历程概述 1

1。2 Cameralink接口标准简介 3

1。3 本文的研究背景 6

1。4 本文的主要研究内容 7

2 Cameralink数字接口成像系统平台 8

2。1 系统硬件总体结构 8

2。2 NSC1105传感器 8

2。3 A/D转换芯片 12

2。4 Cameralink 芯片和FPGA图像处理板 14

2。5 搭建成像系统硬件平台 16