Estimated from the "rain strength" video during the heavy rain disaster

Nippon News Network (NNN)

As the disaster caused by heavy rains continues, a new attempt began to measure the intensity of rain in real time from the camera image. Director Yoaki Nakatani, Director of the National Land Technology Policy Institute, "This experiment will be a basic experiment to create technology to analyze strong rain from digital images." It was an attempt to measure the amount and strength of the surveillance camera, and on the 6th, it was performed with 15 mm to 135 mm rain per hour. While shooting the rain with the camera, enter the data of the rainfall at that time in the system. The AI ​​learns the size of the camera's image and the size of the raindrops, and estimates the rainfall from the camera image. Even in places where there is no raindrop of Amedas, there is a possibility that the rainfall can be estimated from the video of the surveillance camera, and it is expected to be practical in the future. Director Hiroaki Nakatani "As the basic data increases explosively, we can see a different world. We are developing technology in hopes of such a thing." We have set up about 14,000 surveillance cameras nationwide, and we are considering whether it can be used as a tool to know the strength of rain in the future.