Related Experiment Video
Updated: Jul 6, 2026

Impacts of Free-falling Spheres on a Deep Liquid Pool with Altered Fluid and Impactor Surface Conditions
Published on: February 17, 2019
Adaptive computer-based spatial-filtering method for more accurate estimation of the surface velocity of debris flow
M S Uddin1, H Inaba, Y Itakura
1Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan.
Abstract:
An adaptive computer-based spatial-filtering velocimeter to measure the surface velocity of a natural debris flow with high accuracy is described that can adjust the filter parameters, specifically, the slit width of the filter, based on the surface-pattern characteristics of the flow. A computer simulation confirms the effectiveness of this technique. The surface velocity of a natural debris flow at the Mt. Yakedake Volcano, Japan, was estimated by this adaptive method, and the results were compared with those obtained by two other methods: hardware-based spatial filtering and normal computer-based spatial filtering.
Related Concept Videos
Uniform Depth Channel Flow: Problem Solving
Linear Approximations
Uniform Depth Channel Flow
Vector Functions and Motion: Problem Solving
