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Yonezawa Toshiaki


Study on Measurement of Speed and Direction of Sea Waves by Image Processing in Consideration of Ship's Attitude

宇部工業高等専門学校研究報告 Volume 57 Page 11-16
published_at 2011-03
UN20057000003.pdf
[fulltext] 7.83 MB
Title
船舶姿勢を考慮した画像処理による海洋波の方位・速度計測に関する研究
Study on Measurement of Speed and Direction of Sea Waves by Image Processing in Consideration of Ship's Attitude
Creators Yonezawa Toshiaki
Creators Sakata Ryuichi
Source Identifiers
Creator Keywords
sea wave image processing speed direction ship’s attitude
When one drives the ship near quay, direction and speed of sea waves has been measured with eyes. Therefore the measurement is less-accurate. Thus its improvement has been hoped. So the study proposes a measurement system of direction and speed of sea waves using camera images as part of ship handling support system. This system films the state of sea surface with video cameras, and imports different frame imageries at each unit time (frame). Then this system measures direction and speed of sea waves by calculating correlation coefficient between measurement window of each image after appropriate processing. It is confirmed that this system measures direction and speed of sea waves with high accuracy. Also it is confirmed that this system measures even with camera mounted on the ship affected by the rolling.
Languages jpn
Resource Type departmental bulletin paper
Publishers 宇部工業高等専門学校
Date Issued 2011-03
File Version Version of Record
Access Rights open access
Relations
[ISSN]0386-4359
[NCID]AN00019833