Error Analysis for Lucas-Kanade Based Schemes

被引：0

作者：

Marquez-Valle, Patricia ^{[1
]}

Gil, Debora

Hernandez-Sabate, Aura

机构：

[1] Comp Vis Ctr, Campus UAB, Bellaterra, Spain

来源：

IMAGE ANALYSIS AND RECOGNITION, PT I | 2012年 / 7324卷

关键词：

Optical flow; Confidence measure; Lucas-Kanade; Cardiac Magnetic Resonance; CONFIDENCE MEASURE;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Optical flow is a valuable tool for motion analysis in medical imaging sequences. A reliable application requires determining the accuracy of the computed optical flow. This is a main challenge given the absence of ground truth in medical sequences. This paper presents an error analysis of Lucas-Kanade schemes in terms of intrinsic design errors and numerical stability of the algorithm. Our analysis provides a confidence measure that is naturally correlated to the accuracy of the flow field. Our experiments show the higher predictive value of our confidence measure compared to existing measures.

引用

页码：184 / 191

页数：8

共 15 条

[1]

[Anonymous], 1997, NUMERICAL LINEAR ALG

[2]

[Anonymous], 1993, LNCS

[3] A Database and Evaluation Methodology for Optical Flow [J].

Baker, Simon ;

Scharstein, Daniel ;

Lewis, J. P. ;

Roth, Stefan ;

Black, Michael J. ;

Szeliski, Richard .

INTERNATIONAL JOURNAL OF COMPUTER VISION, 2011, 92 (01) :1-31

[4] Evaluation of differential optical flow techniques on synthesized echo images [J].

Baraldi, P ;

Sarti, A ;

Lamberti, C ;

Prandini, A ;

Sgallari, F .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1996, 43 (03) :259-272

[5] PERFORMANCE OF OPTICAL-FLOW TECHNIQUES [J].

BARRON, JL ;

FLEET, DJ ;

BEAUCHEMIN, SS .

INTERNATIONAL JOURNAL OF COMPUTER VISION, 1994, 12 (01) :43-77

[6]

Bruhn A., 2005, IJCV, V61, P221

[7]

Bruhn A, 2006, COMP IMAG VIS, P283

[8]

Duan Qi, 2006, Conf Proc IEEE Eng Med Biol Soc, V2006, P707

[9]

Kondermann C, 2008, LECT NOTES COMPUT SC, V5304, P290, DOI 10.1007/978-3-540-88690-7_22

[10]

Leung K., 2010, SPIE, V7623

← 1 2 →