Open AccessStudy on stereo photography for ocean wave measurements in no sea control points
Author(s) -
Wenzheng Jiang,
Yue Yuan,
Wang Ying-Xia
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.119101
Subject(s) - photography , wind wave , measure (data warehouse) , calibration , computer science , remote sensing , stereo camera , scale (ratio) , geology , computer vision , physics , oceanography , art , visual arts , quantum mechanics , database
A novel stereo photography method is developed for ocean wave measurement, and the mathematical model and algorithm are also developed. A new exterior calibration technique is built by the least square method in combination with the sea wave theory. Compared with the conventional calibration technique, the present method does not need the sea control points are not needed. Thus, this novel stereo photography method can easily be extended to the measurement the sea waves on a mobile platform. The laboratory experiments show that the stereo photography system proposed in the present paper is accurate and can be used to measure Gravity-Capillary waves. Meanwhile, from the outfield experiments we can also find that our method is feasible to measure large-scale ocean wave and the measured area (overlay) is up to 104 m2.