关键词：
Principal Component analysis;Surface Mount Technology;Character recognition
摘要：
In this paper, we present an approach to recognizing characters in surface mount technology (SMT) product. Firstly, we capture the SMT characters image by a camera. Some feature information which can represent the SMT product character images is extracted. Secondly, by processing and analyzing the feature information, Principal Component analysis is used in characters recognition. Lastly, a SMT characters recognition system based on VC++ is developed. The experiment has shown that the system has some advantages in acquisition speed, readability and portability, and practical.
摘要：
In this paper, a compressing and reconstruction method for a noise video based on Compressed Sensing (CS) theory is proposed. At first, the CS theory is presented. Then the noise video is estimated from noisy measurement by solving the convex minimization problem. The video recovery algorithms based on gradient-based method is used to compressing and reconstructing the noise signal. And a compressive sensing algorithm with gradient-based method is proposed. At last, the performance of the proposed approach is shown and compared with some conventional algorithms. Our method can obtain best results in terms of peak signal noise ratio (PSNR) than those achieved by common methods with only a little runtime.
作者机构：
College of Electrical and Information Engineering, Hunan University, Hunan;410082, China;Department of Computer Science, Hengyang Normal University, Hengyang;421008, China;[赵辉煌; 王耀南] College of Electrical and Information Engineering, Hunan University, Hunan
通讯机构：
[Zhao, H.] C;College of Electrical and Information Engineering, Hunan University, Hunan, China
期刊：
Applied Mechanics and Materials,2012年198-199:1395-1398 ISSN：1660-9336
通讯作者：
Sun, Y.(sunyaqiyu@163.com)
作者机构：
[Sun, Yaqi] Department of Computer Science, Hengyang Normal University, Hunan 421008, China;[Liu, Yu; Sun, Yaqi; Xiao, Kuohua] College of Mechanical and Control Engineering, GuiLin University of Technology, Guangxi 541004, China
通讯机构：
[Sun, Y.] D;Department of Computer Science, , Hunan 421008, China
会议名称：
2012 International Applied Mechanics,Mechatronics Automation & System Simulation Meeting(AMMASS2012)(2012应用力学、机械自动化与系统模拟国际会议)
会议时间：
2012-06-24
会议地点：
杭州
会议论文集名称：
2012 International Applied Mechanics,Mechatronics Automation & System Simulation Meeting(AMMASS2012)(2012应用力学、机械自动化与系统模拟国际会议)论文集
关键词：
Dijkstra algorithm;Shortest path;Travel path searching system
摘要：
The existing transportation service system in public travel route can not satisfy the people's actual travel need because of various technologies reasons. In our study, we set the tourist attractions as a vertex, and simplified the traditional algorithm for complex network computing. Aim to use the advantage of Dijkstra algorithm, the Dijkstra algorithm was applied to tourism path search. The experimental results have illustrated that the Dijkstra algorithm can accomplish a good result in search efficiency.
