基于FPGA的SAD立体匹配算法实现
关键词 计算机视觉 立体匹配 区域匹配 SAD FPGA
毕业论文设计说明书（论文）外文摘要
Title SAD stereo matching algorithm based on FPGA implementations
Abstract
Stereo vision matching technology is a key part of the field of computer vision research，and is also a difficulty in this area. The sum of the absolute difference between the pixel gray, SAD algorithm, is an algorithm based on region matching in stereo vision matching algorithm. In this paper, FPGA parallel computing and the rational pipelined design are used to complete hardware implementation of the SAD algorithm. Describing the stereo matching theoretical, SAD calculation algorithm is given to compare with other area-based matching algorithms. Using computer software VC2010 to simulate the SAD algorithm. Preliminary understanding SAD calculation algorithm, and providing programming experience for implementation of hardware. Altera's FPGA systems the DE2-115 board and Quartus software are used to realize the hard implementation of SAD algorithm. This paper describes the hardware simulation algorithm implementation process, and gives the final hardware implementation parallax image display.
Keywords Computer Vision Stereo matching Regional matching SAD FPGA
目次
1 绪论 1
1.1 立体视觉匹配 1
1.2 国内外研究现状 2
1.3 本文的研究内容和结构 3
1.3.1 研究内容 3
1.3.2 论文结构 3
2 SAD算法原理与FPGA技术 4
2.1 SAD的定义及计算方法 4
2.2 FPGA的基本原理和结构 5
2.2.1 FPGA的原理 5
2.2.2 DE2-115可编程逻辑器件结构 6
2.3 VGA的基本原理 7
3 SAD算法设计与硬件实现结构 8
3.1 FPGA的设计理念 8
3.2 基于VHDL的FPGA设计流程 8
3.3 硬件描述语言Verilog HDL 10
3.4 计算机立体视觉库OpenCV 10
3.5 SAD算法的软件实现结构 11
3.6 SAD算法的硬件实现结构 13
4 SAD硬件总体设计和实现 15
4.1 SAD各运算模块的设计和实现 15
4.1.1 SAD图像存储模块 15
4.1.2 SAD图像匹配模块 16
4.1.3 SAD图像输出模块 18
4.2 SAD算法仿真验证 20
4.3 综合及结果分析 21
结论 22
致谢 23
参考文献 24