画像処理型流速測定法を用いた流量観測技術の実用化に向けた検討

抄録

Monitoring of river-discharge is of great importance in river management. Measurement systems of river-discharge have been installed in many rivers in Japan, however it is quite difficult to measure a river-discharge with a float method appropriately in an extremely flood condition. In order to measure a river-discharge in any flood situations, we introduced image-processing techniques, namely space-time image velocimetry (STIV) and float particle tracking velocimetry (Float PTV) method. The results indicate that the performance of image-processing techniques was almost comparable to that of a float. Furthermore, CCTV camera is quite available for the river-discharge measurement.