基于DSP的机器视觉系统设计.doc

目录 摘要 2 Abstract 3 文献综述 4 1引言 7 1.1本文的研究背景 7 1.2 国内外机器视觉的研究现状 7 1.3 本文的研究方向 7 2机器视觉系统的系统组成 8 2.1概述 8 2.2图像的获取 9 2.2.1图像聚焦原理 9 2.2.2 图像传感器 10 2.3图像的处理和分析 15 2.3.1图像的增强 15 2.3.2图像的平滑 16 2.3.3图像的数据编码和传输 16 2.3.4边缘锐化 17 2.3.5图像的分割 17 2.3.6图像的识别 17 2..4输出或显示 17 3基于颜色的目标识别与跟踪 18 3.1概述 18 3.2图像的彩色模型 18 3.2.1 RGB模型 18 3.2.2 YUV模型 20 3.2.3 YUV与RGB格式转换公式 21 3.3图像识别 22 3.3.1基于边缘检测的图像分割算法 22 3.3.2图像目标的定位 23 4 系统主控芯片DSP2812 24 5系统的工作过程 28 6总结 30 附录 部分程序清单 31 参考文献: 38  基于DSP的机器视觉系统设计 摘要：TMS320F2812是TI公司推出的高性能32位定点信号处理器,它具有高度集成、高速、低功耗、易于开发等优点,特别适用于高性能数字控制和通讯等领域。 嵌入式图像处理技术是机器视觉应用的必然趋势，本文对基于色彩的图像识别技术进行了研究，结合TMS320F2812芯片高性能的嵌入式特性，提出了一种以DSP2812为控制核心的嵌入式图像识别系统。系统在运行过程中能够按照设定的流程采集图像，并且按照要求追踪到某一颜色的物体。 关键词： The Design of Machine Vision System Based on DSP Abstract：Digital image processing technology is a new technology originated in the 1960scomputer technology and VLSY (Very Large Scale Integration) .It has made great achievements not only in theory but in practical applications. Image Recognition based on the shape and color of the image is the two major research direction of the image processing technology. These two specific applications play a very great role in promoting the machine vision technology. TMS320F2812 is a high-performance 32-bit fixed-point signal processor of TI. It has some advantages such as highly integrated, high-speed, low power consumption. And also it has high-performance for digital control and communications and other fields. Embedded Image Processing technology is a inevitable trend of the machine vision. This paper show some study based on the color image recognition technology. At the same time in order to using the high-performance of the TMS320F2812 on Embedded system. We bring forward a scheme of embedded Image Recognition System based on high-performance embedded chips TMS320F2812.The system can crawl a picture follow the scheduled steps and track A certain color of objects. Key Words： Image Recognitionmbedded; Machine Vision; DSP2812