研究目的
To develop a flood area potential prediction system based on water level image of the nearby river.
研究成果
The system can detect and discriminate the above water measurement band to calculate water level height. When connected with LiDAR contour data, it can display potentially flooded areas when the river rises. The affected area nearly doubles for each meter of river level rise in the hilly southern part of Jakarta, with potentially higher figures in flatter areas.
研究不足
The system's accuracy may be affected by the quality of the web camera images and the resolution of the LiDAR data. The system is tested in a laboratory setting simulating actual conditions, and its performance in real-world scenarios may vary.
1：Experimental Design and Method Selection:
The system uses a simple web camera to capture water level images, processes these images to calculate water level height, and links this data to corresponding flood maps derived from LiDAR contour data.
2：Sample Selection and Data Sources:
The ROI is a measuring scale on a riverbank in downtown Jakarta. LiDAR contour data of Pesanggrahan River in South and West Jakarta is used for flood map segmentation.
3：List of Experimental Equipment and Materials:
Web camera, LiDAR data, GIS program.
4：Experimental Procedures and Operational Workflow:
The system captures images of the river water level, processes these images to determine the water level height, and displays the corresponding flood map based on LiDAR data.
5：Data Analysis Methods:
The difference between the measurement band’s full length and the detected length is calculated to determine water level height, which is then linked to the corresponding flood map.
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