Determination of Shape and Fall Velocity of Raindrops by lmage Processing
Summary :
A computer-based system for the automatic determination of the physical parameters of rainfall was developed. The measuring device consists of a light source and two TV cameras. Images of raindrops that fell through the slit were observed on a frosted glass plate as shadow images which were photographed simultaneously by two TV cameras with different shutter speeds and analyzed. The data indicated that the shape of raindrops were spheroid in case of small diameter but were slightly deformed into an oblate spheroid in case of larger diameter, and the fall velocity tends to increase with increasing size of raindrops. Rainfall rates calculated from the shape and velocity were compared with those measured directly and found to agree.
- Publication
- IEICE TRANSACTIONS on Information Vol.E78-D No.8 pp.1051-1057
- Publication Date
- 1995/08/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Image Processing, Computer Graphics and Pattern Recognition
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Ken-ichiro MURAMOTO, "Determination of Shape and Fall Velocity of Raindrops by lmage Processing" in IEICE TRANSACTIONS on Information,
vol. E78-D, no. 8, pp. 1051-1057, August 1995, doi: .
Abstract: A computer-based system for the automatic determination of the physical parameters of rainfall was developed. The measuring device consists of a light source and two TV cameras. Images of raindrops that fell through the slit were observed on a frosted glass plate as shadow images which were photographed simultaneously by two TV cameras with different shutter speeds and analyzed. The data indicated that the shape of raindrops were spheroid in case of small diameter but were slightly deformed into an oblate spheroid in case of larger diameter, and the fall velocity tends to increase with increasing size of raindrops. Rainfall rates calculated from the shape and velocity were compared with those measured directly and found to agree.
URL: https://global.ieice.org/en_transactions/information/10.1587/e78-d_8_1051/_p
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@ARTICLE{e78-d_8_1051,
author={Ken-ichiro MURAMOTO, },
journal={IEICE TRANSACTIONS on Information},
title={Determination of Shape and Fall Velocity of Raindrops by lmage Processing},
year={1995},
volume={E78-D},
number={8},
pages={1051-1057},
abstract={A computer-based system for the automatic determination of the physical parameters of rainfall was developed. The measuring device consists of a light source and two TV cameras. Images of raindrops that fell through the slit were observed on a frosted glass plate as shadow images which were photographed simultaneously by two TV cameras with different shutter speeds and analyzed. The data indicated that the shape of raindrops were spheroid in case of small diameter but were slightly deformed into an oblate spheroid in case of larger diameter, and the fall velocity tends to increase with increasing size of raindrops. Rainfall rates calculated from the shape and velocity were compared with those measured directly and found to agree.},
keywords={},
doi={},
ISSN={},
month={August},}
Copy
TY - JOUR
TI - Determination of Shape and Fall Velocity of Raindrops by lmage Processing
T2 - IEICE TRANSACTIONS on Information
SP - 1051
EP - 1057
AU - Ken-ichiro MURAMOTO
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E78-D
IS - 8
JA - IEICE TRANSACTIONS on Information
Y1 - August 1995
AB - A computer-based system for the automatic determination of the physical parameters of rainfall was developed. The measuring device consists of a light source and two TV cameras. Images of raindrops that fell through the slit were observed on a frosted glass plate as shadow images which were photographed simultaneously by two TV cameras with different shutter speeds and analyzed. The data indicated that the shape of raindrops were spheroid in case of small diameter but were slightly deformed into an oblate spheroid in case of larger diameter, and the fall velocity tends to increase with increasing size of raindrops. Rainfall rates calculated from the shape and velocity were compared with those measured directly and found to agree.
ER -
English
