VIDEO-BASED BREAKWATER OVER-TOPPING MONITORING
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 유제선 | - |
dc.contributor.author | 도기덕 | - |
dc.contributor.author | 전기천 | - |
dc.contributor.author | 심재설 | - |
dc.contributor.author | 신성원 | - |
dc.date.accessioned | 2020-07-16T10:30:16Z | - |
dc.date.available | 2020-07-16T10:30:16Z | - |
dc.date.created | 2020-02-11 | - |
dc.date.issued | 2012-12-10 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/27227 | - |
dc.description.abstract | In recent years, swell-like large wave events have occurred on the east coast of Korea, causing severe breakwater over-topping disasters and dozens of life losses. Breakwater over-topping is mainly characterized by incident waves rather than other physical sources such as tide, currents, etc. A breakwater over-topping monitoring system, developed to reduce coastal damages by the swell-like waves around Korea, was enabled by CCTV imaging and analysis technique. In detail, the CCTV image frame sequences were sampled at 3 Hz during a time period of 15 minutes, and rectified using the surveyed breakwater geometry data, i.e., ground control points. The horizontal waterline oscillations which could be converted to run-up motions using the measured breakwater slope were extracted across the sloped breakwater incline from the rectified image sequences using a line detection method. Characteristics of the breakwater run-ups were analyzed from the time-series of the extracted waterline fluctuations using the spectral analysis method. Comparisons of the run-up and incident wave properties showed that the run-up heights were linearly influenced by the incident wave heights. than other physical sources such as tide, currents, etc. A breakwater over-topping monitoring system, developed to reduce coastal damages by the swell-like waves around Korea, was enabled by CCTV imaging and analysis technique. In detail, the CCTV image frame sequences were sampled at 3 Hz during a time period of 15 minutes, and rectified using the surveyed breakwater geometry data, i.e., ground control points. The horizontal waterline oscillations which could be converted to run-up motions using the measured breakwater slope were extracted across the sloped breakwater incline from the rectified image sequences using a line detection method. Characteristics of the breakwater run-ups were analyzed from the time-series of the extracted waterline fluctuations using the spectral analysis method. Comparisons of | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | Pacific | - |
dc.relation.isPartOf | PACON2012 | - |
dc.title | VIDEO-BASED BREAKWATER OVER-TOPPING MONITORING | - |
dc.type | Conference | - |
dc.citation.conferencePlace | US | - |
dc.citation.endPage | 76 | - |
dc.citation.startPage | 76 | - |
dc.citation.title | PACON2012 | - |
dc.contributor.alternativeName | 유제선 | - |
dc.contributor.alternativeName | 도기덕 | - |
dc.contributor.alternativeName | 전기천 | - |
dc.contributor.alternativeName | 심재설 | - |
dc.identifier.bibliographicCitation | PACON2012, pp.76 | - |
dc.description.journalClass | 1 | - |