Fast global motion estimation via iterative least-square method

CASIA OpenIR > 09年以前成果

	Fast global motion estimation via iterative least-square method
	Wang, J; Wang, HF; Liu, QS; Lu, HQ; Narayanan, PJ; Nayar, SK; Shum, HY
发表期刊	COMPUTER VISION - ACCV 2006, PT II
	2006
卷号	3852 页码:343-352
文章类型	Article
摘要	This paper presents a Fast algorithm for global motion estimation based on Iterative Least-Square Estimation (ILSE) technique. Compared with the traditional framework, three improvements were made to accelerate the computation progress. First, a new 3-parameter linear model, together with its solution using modified ILSE method, is proposed to describe and estimate global motion, which is simple and reasonable. Second, a pre-analysis method, Gradient Thresholding (GT) method, is introduced to pre-analyze the image macro-blocks before global motion estimation using their gradient information, which reduce the computational cost by reducing the amount of involved blocks. Lastly, Successive Elimination Algorithm (SEA), which is used to calculate motion field, is improved by a now presented matching criterion considering both the gradient information and the intensity information. The presented method has been tested on a variety of image sequences, and experimental results illustrate its promising performance.
WOS标题词	Science & Technology ; Technology
关键词[WOS]	SUCCESSIVE ELIMINATION ALGORITHM
收录类别	ISTP ; SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods
WOS记录号	WOS:000235773200035
引用统计
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/9272
专题	09年以前成果
作者单位	Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Wang, J,Wang, HF,Liu, QS,et al. Fast global motion estimation via iterative least-square method[J]. COMPUTER VISION - ACCV 2006, PT II,2006,3852:343-352.
APA	Wang, J.,Wang, HF.,Liu, QS.,Lu, HQ.,Narayanan, PJ.,...&Shum, HY.(2006).Fast global motion estimation via iterative least-square method.COMPUTER VISION - ACCV 2006, PT II,3852,343-352.
MLA	Wang, J,et al."Fast global motion estimation via iterative least-square method".COMPUTER VISION - ACCV 2006, PT II 3852(2006):343-352.