Title :
The non-eye typhoon center locating with parallel computing
Author :
Liu, Zhengguang ; Wu, Bing ; Xue, Juntao ; Liu, Huanzhu
Author_Institution :
Sch. of Eng. Electr. & Autom., Tianjin Univ., China
Abstract :
A new mathematical morphology-based algorithm is proposed to achieve automatic center location of noneye typhoon. The center of a noneye typhoon is near the geometric center of the cloud system and has higher temperature. For each infrared satellite cloud image, the locating procedures are as follows: a) noises filtering, b) main cloud systems segmenting, c) center locating and d) multispectral image verification. The algorithms are based on operations of mathematical morphology, and designed in IBM SP2 massively parallel computer. The experiment results show that the algorithm locates the centers of most noneye typhoons successfully and achieves faster, more precise and nonhuman interactive noneye typhoon center positioning.
Keywords :
atmospheric movements; geophysical signal processing; image segmentation; mathematical morphology; parallel algorithms; parallel programming; storms; weather forecasting; IBM SP2 massively parallel computer; cloud system geometric center; cloud system segmentation; infrared satellite cloud image; mathematical morphology-based algorithm; multispectral image verification; noise filtering; noneye typhoon center locating; parallel computing; Clouds; Filtering; Image segmentation; Infrared imaging; Morphology; Multispectral imaging; Parallel processing; Satellites; Temperature; Typhoons;
Conference_Titel :
Parallel and Distributed Computing, Applications and Technologies, 2003. PDCAT'2003. Proceedings of the Fourth International Conference on
Print_ISBN :
0-7803-7840-7
DOI :
10.1109/PDCAT.2003.1236350