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《China Wood Industry》 2002-03
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Method of On-line Detecting Wood Surface Defects by Laser

HAN Yu jie 1, ZHU Guo xi 1, Chiaki TANAKA 2 (1.Northeast Forestry University, Harbin 150040, China; 2.Shimane University, Matsue 690 8504,Japan)  
This paper presentes an on line method for detecting crack and knot of planed lumber surface. The system is consisted of a laser sensor which provides scanning signal, a FFT analyser which records a curve and a personal computer which analyses and processes data from FFT analyser. The system could not only distinguish crack and knot of wood surface quickly and accurately, but also calculate size of each defect according to the data from record curve.
【CateGory Index】: TS67
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Chinese Journal Full-text Database 4 Hits
1 REN Hong-e(Northeast Forestry University,Harbin Heilongjiang 150040,China);Study of Theory for Video Identify of Knots on Log Based on Mathematics Model[J];Application Research of Computers;2006-03
2 CHENG Wei1,2,ZHU Dian-xiang1(1.Nanjing Forestry University,Nanjing 210037,Jiangsu,China;2.Huaiyin Institute of Technology,Huai'an 223001,Jiangsu,China);Design of the Veneer Automatic Classification System Based on Computer Vision[J];China Wood Industry;2007-03
3 ;Design of testing system for the fast-growing Poplar veneer by computer vision[J];Woodworking Machinery;2007-01
4 FENG Jun-yan,FENG Qi-bo,KUANG Cui-fang (Department of Physics, Beijing Jiaotong University, Beijing 100044,China);Present Status of High Precision Laser Displacement Sensor Based on Triangulation[J];Journal of Applied Optics;2004-03
China Proceedings of conference Full-text Database 2 Hits
1 FENG Junyan FENG Qibo Kuang Cuifang (Department of Physics, Northern Jiaotong University, Beijing 100044);Status of Laser Displacement Measurement Techniques Based on Triangulation[A];[C];2003
2 Zhifeng Zhang Qibo Feng Shiqian Chen Cuifang Kuang School of Science,Beijing Jiaotong University,Beijing,100044,China;Theoretical analysis of the gauge laser sensor and several design parameters[A];[C];2005
Chinese Journal Full-text Database 10 Hits
1 Liu Tieying\ Fan Liming\ Zheng Gang (College of Instruments,University of Shanghai for Science and Technology,Shanghai 200093);A new algorithm for determination of the particle size distributionwith bimodel RosinRammler function[J];JOURNAL OF UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY;1998-02
2 ZHAOXiu-li (Department of Ordnance Science and Technology. NAEI, Yantai. Shandong. 264001);Research on the Development Of OpenGL Application Program Based on Windows[J];Journal of Naval Aeronautical;2005-06
3 SUN Yi1, SUN Hong-yu1, BAI Peng1, WANG Yu2, TIAN Yan-ping2(l. School of Electronic and Information Engineering, Dalian Univ of Tech, Dalian 116024, China; 2.Steel Tube Factory of China Oil & Gas Pipeline Burean, Liaoning Liaoyarig 111000, China). P115-118,122;Real-time automatic detection of weld defects in X-ray images[J];Transactions of The China Welding Institution;2004-02
4 ZHANG Li-na1,Li Xiao-lin2,TANG Gao-feng3(1.Department of Mathematics,Xianyang Normal University,Xianyang 712000,China;2.Department of Computer,Xianyang Normal University,Xianyang 712000,China;3.Department of Technology Industry,Xianyang Normal University,Xianyang 712000,China);Image Decomposition Methods Based on PDE[J];Aeronautical Computing Technique;2008-06
5 YANG Bo (Institute of Image Recognition and Computer Vision,Hunan Normal Univ ersity,Changsha 410081,China);Image Segmentation of the Genetic Algorithms on the Base of Otsu[J];Journal of Natural Science of Hunan Normal University;2003-01
6 XUE Shu Wen ZONG Ming Cheng DING Tie Ying TANG Hui Jun (Department of Physics, Northern Jiaotong University, Beijing 100044, China);PULSED VIDEO IR THERMOGRAPHY TESTING OF SUBSURFACE DEFECTS IN METAL[J];JOURNAL OF INFRARED AND MILLIMETER WAVES;1998-06
7 Luo Wei Peng Fuyuan Liu Jian Luo Wei Postgraduate; Dept. of Electronics and Information Eng., HUST, Wuhan 430074, China.;Automatic Grading System for Color Ceramic Tiles[J];Journal of Huazhong University of Science and Technology;2001-03
8 Yang Shubin Peng Fuyuan Zhang Zengchang Master; Dept. of Electronics & Information Eng., Huazhong Univ. of Sci. Tech., Wuhan 430074, China.;Morphological edge detector with multiscale adaptive weighting[J];Journal of Huazhong University of Science and Technology;2002-10
9 Li Wei Huang Xinhua Wang Min Wan Guohong Li Wei Doctoral Candidate.; Dept. of Control Sci. & Eng., Huazhong Univ. of Sci. & Tech., Wuhan 430074, China.;The steel surface inspection system based on computer vision[J];Journal of Huazhong University of Science and Technology;2003-02
10 ;Virtual Instrument——A New Developmental Stage of the Mordern Instrument[J];Measurement & Control Technology;2001-10
【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 ZHAO Jun~1,QU Tonghai~2(1.Heilongjiang Electric Power Research Institute,Harbin 150030,China;2.Huadian Energy Company Limited,Harbin 150001,China);Emulational study on a high-precision displacement measuring system based on spot-structure light[J];Heilongjiang Electric Power;2006-05
2 ZHAO Hao YU Xiao-yang ZHANG Xiu-bao (College of Measurement-control Technology & Communications Engineering,Harbin Univ.Sci.Tech.,Harbin 150040,China);A Simulation Study of Precise Displacement Sensor Based on Dot Structured Light[J];Journal of Harbin University of Science and Technology;2007-02
3 ZHAO Hui, ZHANG Hai-bo, TAO Wei (School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China);Resolution analysis of laser triangulation displacement sensor and parameters optimization[J];Infrared and Laser Engineering;2008-S1
4 CAO Hong-chao CHEN Lei WANG Bo ZHU Wan-bin 1.State Key laboratory d Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China;3.Institute of Science,PLA University of Science and Technology,Nanjing 211101,China;The study of a new kind structure of high precision laser displacement sensor based on triangulation[J];Laser Journal;2007-06
5 ;The Method and Data Processing of Laser Measuring about the Ridge Belt[J];Metrology & Measurement Technique;2010-06
6 XIAO Bin-jie SHU Wei-qun(Departments of Control Science and Engineering,Tongji University,Shanghai 200092,China);Research on Feature Extraction of Defects on Wood Surfaces Based on Image Fusion[J];Computer Science;2011-04
7 LIU Xing-chu,JIN Yong-jun,ZHANG Jian-wu(School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200030,China);Time domain simulation of stochastic vibration for maglev track inspection vehicle[J];Journal of Jiangsu University(Natural Science Edition);2006-05
8 GU Xue-min,QIN Xian-sheng,HE Feng,CAI Yong,LIU Qiong,SONG Xin;An online machine-vision system in bamboo chips color sorting[J];Manufacturing Automation;2010-11
9 ZHAO Tian-yu1,2 , WU Yi-ming1,CHEN Liang-yi1,ZHU Li-feng1,2,LIU Yu-bo1,2(Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences1, Xi’an 710119,P.R.China;Graduate School of Chinese Academy of Sciences2, Beijing 100039,P.R.China);Research on Structured Light and Phase Measurement by Comparison[J];Science Technology and Engineering;2007-17
10 MA Juan-juan1,JIN Yong2(1.School of Information and Communication Engineering,North University of China,Taiyuan Shanxi 030051,China;2.National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan Shanxi 030051,China);Research on Automatic Detection Technology for Wood Board Surface Defects[J];Forestry Machinery & Woodworking Equipment;2010-09
China Proceedings of conference Full-text Database 2 Hits
1 Zhang Li 1,2,Zhang Xiangxue 2,Ding Jinyun 1,Zhang Zhifeng 1 1.School of Science,Beijing Jiaotong University,Beijing,100044,2.College of Science,Beijing Forestry University,Beijing,100083,;The Laser Triangulation Measurement System Based on Embedded System[A];[C];2007
2 HE Ning, ZHOU Tian-hua, SI Li-hong Department of Communication and Information Engineering, GUET, Guilin 541004, China;Design and realization of the height of liquid level measurement with laser[A];[C];2005
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