A Multiprocessor Based Automatic Hail Flow Image Processing System

In hail flow analysis, hail characteristics such as isolated hail size histogram and hail velocity distribution are very important. An innovative automatic hail flow measuring system is described in this paper. The system applies Rewo filter based image processing, automatic learning, and multiprocessor techniques to analyze both temporal and spatial features of multiple hail flow video frames. The testing results of five hundred hail frames having a total of more than two thousand hail particles show the advantages of this system in automation, robustness, statistic reliability and accuracy compared to radar and manual calculation.