Feature Analysis and Classification of Particle Data from Two-Dimensional Video Disdrometer

HTML  Download Download as PDF (Size: 6465KB)  PP. 1-14  
DOI: 10.4236/ars.2015.41001    3,789 Downloads   4,794 Views  Citations

ABSTRACT

We developed a ground observation system for solid precipitation using two-dimensional video disdrometer (2DVD). Among 16,010 particles observed by the system, around 10% of them were randomly sampled and manually classified into five classes which are snowflake, snowflake-like, intermediate, graupel-like, and graupel. At first, each particle was represented as a vector of 72 features containing fractal dimension and box-count to represent the complexity of particle shape. Feature analysis on the dataset clarified the importance of fractal dimension and box-count features for characterizing particles varying from snowflakes to graupels. On the other hand, performance evaluation of two-class classification by Support Vector Machine (SVM) was conducted. The experimental results revealed that, by selecting only 10 features out of 72, the average accuracy of classifying particles into snowflakes and graupels could reach around 95.4%, which had not been achieved by previous studies.

Share and Cite:

Gavrilov, S. , Kubo, M. , Tran, V. , Ngo, D. , Nguyen, N. , Nguyen, L. , Lumbanraja, F. , Phan, D. and Satou, K. (2015) Feature Analysis and Classification of Particle Data from Two-Dimensional Video Disdrometer. Advances in Remote Sensing, 4, 1-14. doi: 10.4236/ars.2015.41001.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.