scholarly journals Dominant point detection based on discrete curve structure and applications

2018 ◽  
Vol 95 ◽  
pp. 177-192 ◽  
Author(s):  
Hayat Nasser ◽  
Phuc Ngo ◽  
Isabelle Debled-Rennesson
Keyword(s):  
Curve Structure ◽  
Dominant Point ◽  
Point Detection ◽  
Discrete Curve

scholarly journals A discrete geometry approach for dominant point detection

2011 ◽  
Vol 44 (1) ◽  
pp. 32-44 ◽  
Author(s):  
Thanh Phuong Nguyen ◽  
Isabelle Debled-Rennesson
Keyword(s):  
Discrete Geometry ◽  
Dominant Point ◽  
Point Detection

scholarly journals Planar Contour Primitive Recognition of Thin Sheet Part Dimensional Inspection System

2011 ◽  
Vol 2-3 ◽  
pp. 463-468
Author(s):  
Ji Gang Wu ◽  
Kuan Fang He ◽  
Bin Qin
Keyword(s):  
Hough Transform ◽  
Thin Sheet ◽  
Detection Methods ◽  
Inspection System ◽  
Threshold Method ◽  
Dimensional Inspection ◽  
Straight Line ◽  
Dominant Point ◽  
Contour Point ◽  
Point Detection

According to the two indices of inspection accuracy and inspection speed, a planar contour primitive recognition method of thin sheet part dimensional inspection system based on curvature and HOUGH transform is proposed. A contour point classification algorithm based on neighborhood values is developed, and a curvature threshold method is selected to filter the contour points, and a projection height method is selected to distinguish the property of the primitive and classify the contour points, and the straight line primitive and arc primitive segmentation and merging algorithms are constructed respectively by HOUGH transform. The inspection accuracy and inspection speed of the proposed method are compared and analyzed by contrast experiments between the proposed method and four dominant point detection methods such as Chung & Tsai method and so on. The dominant point detection ability of the proposed method is tested by a simulation planar contour which includes all kinds of dominant points. The experimental results indicate that the proposed method can recognize primitives exactly, the inspection speed is fast and the universality is good.

A heuristic method for initial dominant point detection for polygonal approximations

2019 ◽  
Vol 23 (18) ◽  
pp. 8435-8452 ◽  
Author(s):  
S. Kalaivani ◽  
Bimal Kumar Ray
Keyword(s):  
Heuristic Method ◽  
Dominant Point ◽  
Point Detection
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