Heuristic hybrid genetic algorithm based shape matching approach for the pose detection of backlight units in LCD module assembly

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	Heuristic hybrid genetic algorithm based shape matching approach for the pose detection of backlight units in LCD module assembly
	Cai HY(蔡慧英); Zhu F(朱枫); Wu QX(吴清潇); Li SC(李思聪)
刊名	International Journal of Advanced Manufacturing Technology
	2016
卷号	87 期号:9 页码:3437-3447
关键词	Pose detection Backlight unit Heuristic hybrid genetic algorithm Dominant orientation
ISSN号	0268-3768
通讯作者	蔡慧英
产权排序	1
中文摘要	Backlight unit (BLU) and open cell are two critical parts of the liquid crystal display (LCD) module (LCM) which is the most significant component of LCD TV. To place the open cell into a BLU automatically using an assembly robot, this paper proposes a heuristic hybrid genetic algorithm (HHGA) based shape matching approach to detect the pose (orientation and position) of the BLU. The approach takes advantages of line structures of the BLUs to avoid the most time-consuming exhaustive search. Firstly, obtain initial orientation of a BLU by the dominant orientations which can be obtained with the statistical gradient orientation histograms. Secondly, search the optimal pose through the HHGA which mainly consists of local search strategy, crossover strategy, clone strategy, and mutation strategy. Local search strategy is designed according to the rising trend of matching features around the optimal pose and along the lines. Crossover and clone are heuristic strategies designed according to the distribution characteristics of local maxima to produce new meaningful offspring. Mutation is a necessary strategy to keep the diversity of the population. The performance of the proposed approach has been tested on an image database acquired from the LCM assembly lines and compared with standard hybrid GA and exhaustive search by a new statistical indicator. Experimental results show that the proposed approach has a high efficiency within limited time and is suitable for the pose detection of the BLUs.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Automation & Control Systems ; Engineering, Manufacturing
研究领域[WOS]	Automation & Control Systems ; Engineering
关键词[WOS]	INSPECTION
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000388988300085
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/18495]
专题	沈阳自动化研究所_光电信息技术研究室
推荐引用方式 GB/T 7714	Cai HY,Zhu F,Wu QX,et al. Heuristic hybrid genetic algorithm based shape matching approach for the pose detection of backlight units in LCD module assembly[J]. International Journal of Advanced Manufacturing Technology,2016,87(9):3437-3447.
APA	Cai HY,Zhu F,Wu QX,&Li SC.(2016).Heuristic hybrid genetic algorithm based shape matching approach for the pose detection of backlight units in LCD module assembly.International Journal of Advanced Manufacturing Technology,87(9),3437-3447.
MLA	Cai HY,et al."Heuristic hybrid genetic algorithm based shape matching approach for the pose detection of backlight units in LCD module assembly".International Journal of Advanced Manufacturing Technology 87.9(2016):3437-3447.