Through water image by using continuous photos

Jan Shiang Chen, Chi Kuei Wang

研究成果: Conference contribution

摘要

Underwater features at shallow depth (∼ 40 cm) are difficult to be observed and monitored. The water surface disturbed by flow and wind action prevents the direct observation from above water. Water-proofed camera or video are also hard to maneuver in such situations. In this study, we tackle this problem by using continuous photos (∼2000 photos per site) taken from above water and setup on a tripod. We employed a Nikon D200 camera, which takes about 3 - 12 minutes for each site. A grey card of photogrammetric grade is used to adjust the temporal change of illumination condition. Test sites include two flow types, i.e., no perceptible flow and smooth. A mode-based filter scheme is developed to filter the pixels that are disturbed by wave actions. The results show that the proposed filter is most effective for both flow types, where the water surface is mostly flat.

原文English
主出版物標題30th Asian Conference on Remote Sensing 2009, ACRS 2009
頁面1593-1598
頁數6
出版狀態Published - 2009 十二月 1
事件30th Asian Conference on Remote Sensing 2009, ACRS 2009 - Beijing, China
持續時間: 2009 十月 182009 十月 23

出版系列

名字30th Asian Conference on Remote Sensing 2009, ACRS 2009
3

Other

Other30th Asian Conference on Remote Sensing 2009, ACRS 2009
國家/地區China
城市Beijing
期間09-10-1809-10-23

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信

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