A New Algorithm of Eyed Typhoon Automatic Positioning Based on Single Infrared Satellite Cloud Image

Abstract:

According to the characteristic that the gray value difference is quite obvious in different areas of the singles infrared cloud, this paper puts forward an algorithm of the eyed typhoon's center automatic positioning. After pretreating the cloud image, we use the template to segment the airtight cloud wall area which has high gray value. In addition, the difference between gray values of the airtight cloud wall area is small. Then we do binarization processing to the image and use the method combined with the mathematical morphology and artificial intelligence to process the image in filtering smoothly. We remove the isolated interference point. Then we corrode image and adopt the seed filling algorithm to detect the candidate eye area. In the candidate eye area, the paper puts forward the discriminant function which is based on the combination of the gray information and the distance between the inspection points and the circle's center. The candidate eye area corresponded to the minimum value of the discriminant function is the center of the eyed typhoon. The experiment result shows that this algorithm has higher positioning accuracy and it can be used for meteorological service.

• Periodical: Applied Mechanics and Materials (Volumes 347-350)
• Pages: 3809-3814
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.347-350.3809
• Online since: August 2013
• Authors: Gang Yin, Yu Feng Chen
• Keywords: Automatic Positioning, Center of the Eyed Typhoon, Mathematical Morphology, Singles Infrared Cloud

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