Weighted Similarity-Invariant Linear Algorithm for Camera Calibration With Rotating 1-D Objects

	Weighted Similarity-Invariant Linear Algorithm for Camera Calibration With Rotating 1-D Objects
	Shi, Kunfeng; Dong, Qiulei; Wu, Fuchao
发表期刊	IEEE TRANSACTIONS ON IMAGE PROCESSING
	2012-08-01
卷号	21 期号:8 页码:3806-3812
文章类型	Article
摘要	In this paper, a weighted similarity-invariant linear algorithm for camera calibration with rotating 1-D objects is proposed. First, we propose a new estimation method for computing the relative depth of the free endpoint on the 1-D object and prove its robustness against noise compared with those used in previous literature. The introduced estimator is invariant to image similarity transforms, resulting in a similarity-invariant linear calibration algorithm which is slightly more accurate than the well-known normalized linear algorithm. Then, we use the reciprocals of the standard deviations of the estimated relative depths from different images as the weights on the constraint equations of the similarity-invariant linear calibration algorithm, and propose a weighted similarity-invariant linear calibration algorithm with higher accuracy. Experimental results on synthetic data as well as on real image data show the effectiveness of our proposed algorithm.
关键词	1-d Calibration Object Camera Calibration Weighted Similarity-invariant Linear Algorithm (Wsila)
WOS标题词	Science & Technology ; Technology
关键词[WOS]	ONE-DIMENSIONAL OBJECTS
收录类别	SCI
语种	英语
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS记录号	WOS:000306598100039
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/2979
专题	多模态人工智能系统全国重点实验室_机器人视觉
通讯作者	Dong, Qiulei
作者单位	Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Beijing 100190, Peoples R China
第一作者单位	模式识别国家重点实验室
通讯作者单位	模式识别国家重点实验室
推荐引用方式 GB/T 7714	Shi, Kunfeng,Dong, Qiulei,Wu, Fuchao. Weighted Similarity-Invariant Linear Algorithm for Camera Calibration With Rotating 1-D Objects[J]. IEEE TRANSACTIONS ON IMAGE PROCESSING,2012,21(8):3806-3812.
APA	Shi, Kunfeng,Dong, Qiulei,&Wu, Fuchao.(2012).Weighted Similarity-Invariant Linear Algorithm for Camera Calibration With Rotating 1-D Objects.IEEE TRANSACTIONS ON IMAGE PROCESSING,21(8),3806-3812.
MLA	Shi, Kunfeng,et al."Weighted Similarity-Invariant Linear Algorithm for Camera Calibration With Rotating 1-D Objects".IEEE TRANSACTIONS ON IMAGE PROCESSING 21.8(2012):3806-3812.

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