Study on Beeline Edge Subpixel Localization for Mechanical Part
- Resource Type
- Conference
- Authors
- Cui, Yanping; Ge, Xingwei; Fu, Qifeng; Yue, Yanfang
- Source
- 2009 2nd International Congress on Image and Signal Processing Image and Signal Processing, 2009. CISP '09. 2nd International Congress on. :1-5 Oct, 2009
- Subject
- Computing and Processing
Signal Processing and Analysis
Image edge detection
Least squares methods
Discrete transforms
Convolution
Measurement techniques
Computer vision
Mechanical variables measurement
Image reconstruction
Moment methods
Interpolation
- Language
Beeline is the important element in the computer vision measurement. Subpixel detection of beeline on image plane based on spatial moment and 3D reconstruction of spatial beeline was researched. First the LOG operator was used to locate the edge at the level of pixel quickly, and then the spatial moment was used to detect subpixel location of the discrete points of edge. The least square fitting was adopted to fit the subpixel edge points which have been detected by Hough transform. The validity and precision of spatial moment subpixel edge detection and the detection of beeline on image plane was studied. The experiments show that spatial moment subpixel edge detection and the detection of beeline on image plane have acquired high precision.