基于DSP的图像测量系统的研究与实现

发布时间：2018-05-13 04:18

本文选题：图像测量 + 计算机视觉　；参考：《哈尔滨工业大学》2017年硕士论文

【摘要】：随着现代社会科学技术水平的不断进步与发展,图像测量系统在许多方面或领域中得到了很好应用,特别是在公共交通安全的管理方面、大气环境的监测和治理方面、海洋环境的监测和预防治理方面、工业生产质量的自动化控制方面、农业生产的过程管理方面以及对已经发生的或可能(或将要)发生的情况观察监视和预防分析决策等方面,这些领域都在不同程度上对一种通用的、小型化的图像测量系统有了一定的需求。图像测量系统是利用摄像机CCD技术对所需要测量或监视物体或目标所获得的图像,按一定的要求通过计算进行处理后得到所需要的结果的系统,由于使用了摄像机技术,该系统不仅可对远近不同距离所需测量的物体或目标按一定的要求进行不同参数的测量,还可对所需测量的物体或目标进行实时视频监视和对目标图像的锁定。本文介绍了图像测量系统的原理及其关键技术。首先利用CCD图像传感器将所获取的光信息转换成为电信号,并以电荷的形式传递光信息,实现对图像的获取、传输;再对获取到的图像信息进行特征方面提取,即锁定或标定图像信息中的目标信号,进行模拟信号与数字信号的转换;然后对获得的数字图像信号采用图像灰度化、图像滤波及图像校正等方法对图像进行预处理,实现图像的去噪和校正;再通过特征提取算法及图像边缘检测算法对图像中的目标进行边缘检测并标定;最后根据电信号脉冲标定方法计算目标的尺寸、面积、长度及距离。在此基础上,设计了基于DSP的图像测量系统,实现了图像测量系统的小型化,并开发了相关操作软件。最后使用该系统分别对多组图像数据进行了实验测试,基本达到预期的效果,验证了图像测量系统的有效性和实用性。
[Abstract]:With the progress and development of science and technology in modern society, image measurement system has been applied in many fields, especially in the management of public traffic safety, the monitoring and management of atmospheric environment. Monitoring and preventive management of the marine environment, automated control of the quality of industrial production, process management of agricultural production and observation, monitoring and preventive analysis of situations that have occurred or may (or will) occur, To some extent, these fields require a general and miniaturized image measurement system. Image measurement system is a system that uses camera CCD technology to measure or monitor the images of objects or targets, and processes the required results through calculation according to certain requirements, because of the use of camera technology, The system can not only measure the object or target with different parameters according to certain requirements, but also can monitor the object or target in real time and lock the target image. This paper introduces the principle and key technology of image measurement system. Firstly, the acquired optical information is converted into electric signal by CCD image sensor, and the optical information is transmitted in the form of electric charge to achieve the acquisition and transmission of the image, and then the feature extraction of the obtained image information is carried out. That is, locking or calibrating the target signal in the image information, converting the analog signal into the digital signal, and then preprocessing the obtained digital image signal by the methods of image grayscale, image filtering and image correction, etc. The image is denoised and corrected. Then the image edge detection and calibration are performed by feature extraction algorithm and image edge detection algorithm. Finally, the size, area, length and distance of the target are calculated according to the signal pulse calibration method. On this basis, the image measurement system based on DSP is designed, the miniaturization of the image measurement system is realized, and the related operation software is developed. Finally, the system is used to test several groups of image data, which basically achieves the desired results, and verifies the effectiveness and practicability of the image measurement system.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP391.41

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