Camera-Vision-Based Water Level Estimation

摘要

This letter presents a camera-vision-based water level estimation method that uses a single image. Existing state-of-the-art multiple-image and airborne ultrasonic sensor-based water level estimation methods rely on a large number of image frames to stabilize the results given the heavy background jitter. In real environments, our proposed two-step histogram-based method is superior to performance of previous image and sensor-based methods in terms of efficiency, robustness, and accuracy.