A method to extract wave tank data using video imagery and its comparison to conventional data collection techniques

被引：20

作者：

Erikson, LH ^{[1
]}

Hanson, H ^{[1
]}

机构：

[1] Lund Univ, Dept Water Resources Engn, S-22100 Lund, Sweden

来源：

COMPUTERS & GEOSCIENCES | 2005年 / 31卷 / 03期

关键词：

image analysis; laboratory experiment; automatic tracing; wave shape; profiles;

D O I：

10.1016/j.cageo.2004.10.006

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A procedure for obtaining quantitative wave and morphodynamic data in a laboratory setting using video images has been developed. The steps include image capture, rectification, and data extraction. All the necessary steps were maintained within the MATLAB environment so the process was streamlined and large amounts of data processed. The procedure involves the use of a program to rectify images, correcting for both lens distortion and camera position. A second program automatically extracts data from images to allow for high spatial and time frequency analysis. The method is shown to produce acceptable results as compared to more conventional methods of measuring wave and profile parameters in a wave tank experiment. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：371 / 384

页数：14

共 31 条

[1]

AAGAARD T, 1989, J COASTAL RES, V5, P547

[2]

Chapman N., 2000, DIGITAL MULTIMEDIA

[3]

DEAN RG, 1977, 12 U DEL DEP CIV ENG

[4]

Edelman T., 1972, P COAST ENG C, P719, DOI [10.1061/9780872620131.046, DOI 10.1061/9780872620131.046]

[5]

FENAISH TA, 1989, P 21 INT C COAST ENG, P1426

[6] Video measurement of swash zone hydrodynamics [J].

Foote, M ;

Horn, D .

GEOMORPHOLOGY, 1999, 29 (1-2) :59-76

[7]

FOOTE M, 1999, P 4 INT S COAST ENG, P393

[8] Quantification of swash flows using video-based particle image velocimetry [J].

Holland, KT ;

Puleo, JA ;

Kooney, TN .

COASTAL ENGINEERING, 2001, 44 (02) :65-77

[9]

HOLLAND KT, 1991, P COAST SED 91, P489

[10]

HOLLOMON DW, 1997, CHEM PLANT PROT, V13, P1

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