Title :
Fast Recognition and Precise Centroiding of Artificial Targets
Author :
Feng Qiqiang ; Li Zongchun ; Chen Xin ; Li Guangyun
Author_Institution :
Dept. of Surveying Eng. & Instrum., Zhengzhou Inst. of Surveying & Mapping, Zhengzhou, China
Abstract :
The paper presents a combined algorithm to recognize and locate the retro-reflective targets in images used in digital industrial photogrammetry. It recognizes the targets based on edge search and locates their centers based on intensity-weighted centroiding approach. Experiments prove that the algorithms can recognize the targets and locate their centers in images accurately with precision about 0.02 pixels, which meets the needs for accuracy of precise digital industrial photogrammetry.
Keywords :
edge detection; image recognition; image resolution; photogrammetry; artificial targets centroiding; digital industrial photogrammetry; intensity-weighted centroiding approach; retro-reflective targets; Coordinate measuring machines; Digital images; Glass; Image recognition; Instruments; Light scattering; Optical materials; Optical scattering; Pixel; Target recognition;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5304651
