A new liquid level measurement method based on randomized hough transform

摘要

Traditional level measurements based on sensors were easily affected by circumstance especially in severe industrial process, whose accuracy of measurement cannot meet the control requirement. In order to deal with the problem, a new level measurement method based on randomized Hough Transform was proposed. After pre-processing, noise-reduction and filtering to the original image, the randomized Hough Transform was used to recognize the liquid level. Experiment results showed that the error of the proposed method is within 2% and the average recognition time is within 0.1s. The proposed method can meet the requirement in industrial fields.