NDLI: Improved chamfer matching method for surface mount component positioning

Content Provider	IET Digital Library
Author	Bai, Lifei Yang, Xianqiang Gao, Huijun
Abstract	This study is concerned with the surface mount component positioning problem and an improved chamfer matching method based on iterative position and rotation angle estimation approach is proposed. Instead of performing matching of the image with different pre-specified angle templates pixel by pixel, as does in traditional chamfer matching methods, the gradient information of the distance transform image is incorporated into the chamfer matching method and reduced computational cost of the method is achieved. The iterative formulas to update the translation and rotation angle are derived by reference to the characteristic of rigid body motion. The criterions of search region establishment, seed point selection and terminal conditions are given. The effectiveness of the proposed method is verified by applying the method to component positioning with actual captured images.
Starting Page	1265
Ending Page	1272
Page Count	8
ISSN	17519659
Volume Number	11
e-ISSN	17519667
Issue Number	Issue 12, Dec (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/11/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2016.0866
Journal	IET Image Processing
Publisher Date	2017-08-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Angle Templates Computational Cost Reduction Computer Vision And Image Processing Technique Distance Transform Image Electronics Industry Gradient Information Gradient Method Image Capture Image Matching Image Pixel Image Recognition Improved Chamfer Matching Method Industrial Application of IT Interpolation And Function Approximation Iterative Formulas Iterative Position Linear Algebra Numerical Analysis Optimisation Optimisation Technique Printed Circuit Production Engineering Computing Rigid Body Motion Rotation Angle Rotation Angle Estimation Approach Search Problem Search Region Establishment Seed Point Selection Surface Mount Component Positioning Surface Mount Technology Terminal Condition Translation Angle
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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