CCD影像遙測波浪之研究

Sensing Water Surface Fluctuations through CCD Image Sequences

周宗仁(Chun-Ren Chou) ； 尹彰(John Z. Yim) ； 黃偉柏(Wei-Po Huang)

《海洋工程學刊》 3卷1期 (2003/07) Pp. 53-71

https://doi.org/10.6266/JCOE.2003.0301.04

摘要

本研究是應用遙測技術，以電耦荷元件影像攝影機(CCD, charged coupled device)拍攝波場的變化，同時配合波高計陣列的量測，將兩種量測系統的量測數據，以規則波實驗回歸出轉換函數，計算波場的週期與波高。另外，遙測不規則波時，當波浪斜率小於0.04時，遙測與實測結果開始產生較大的偏離。實驗總共進行兩個區域的量測，以驗證轉換函數的通用性。

關鍵字

遙測技術 ； 電耦荷元件影像攝影機

並列摘要

Experiments were carried out to assess the feasibility of measuring wave fields using a CCD camera system. Information concerning the wave fields can be extracted from the CCD images in forms of gray scales. By comparison with results measured by wave gauge arrays at the same location, the gray scales can then be related to the physical wave characteristics through a transfer function. The results obtained from regular wave experiments were then used for the cases with irregular waves. It is shown that, the results deviate from the ”in situ” measurements for cases when the wave slopes are less than 0.04. Two regions of interests were used in the study to test the universality of the transfer function.

並列關鍵字

charged coupled device ； remote sensing