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Image Processing System for Measuring Surface Velocities
- Rice, C. T., Wilson, B. N., Appleman, M., Brown, J. W.
- Applied engineering in agriculture 1988 v.4 no.4 pp. 332-339
- agricultural engineering, algorithms, image analysis, video cameras
- Image processing techniques for measuring dynamic changes of surface velocities in rill flows are described. Surface velocities were determined by the movement of small wooden beads as they floated past a video camera. The system was evaluated for accuracy using a well defined velocity medium. Algorithms were then tested using water flows in a small rectangular channel. Results indicated that the system was an accurate and efficient technique for measuring surface velocities. The accuracy of the system was estimated as ± 10 mm/s.