An Approach for Horizon Extraction in Ocean Observation

A horizon extraction method in ocean observation is proposed. Extracting the horizon correctly from the sea images automatically is a challenge task in ocean environment due to the change of lighting or other diversified conditions. The approach converts a color image to a gray scale image with a fu...

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Bibliographic Details
Published in2009 2nd International Congress on Image and Signal Processing pp. 1 - 5
Main Authors Yuxin Wang, Zijun Liao, He Guo, Tianyang Liu, Yuansheng Yang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2009
Subjects
Color
Computer science
Helium
Image converters
Image edge detection
Marine technology
Oceans
Optimization methods
Sea level
Sea measurements
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ISBN1424441293
9781424441297
DOI10.1109/CISP.2009.5305740

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Summary:A horizon extraction method in ocean observation is proposed. Extracting the horizon correctly from the sea images automatically is a challenge task in ocean environment due to the change of lighting or other diversified conditions. The approach converts a color image to a gray scale image with a fusion scheme of nine color channels, and the conversion is insensitive to the variation of light. The weight of each color channel is computed with an optimization method, which will enlarge the difference between the gray value of sky and sea. At last, the horizon is extracted from the intersection line between the sky and sea in the gray image. Image experiments and real application have validated the method.
ISBN:1424441293
9781424441297
DOI:10.1109/CISP.2009.5305740