Research on Image Azimuth Determination Based on Shadow Feature

Zhao Hui Liu; Wen Bang Sun; Ming Li; Di Wu

doi:10.4028/www.scientific.net/AMM.488-489.910

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 488-489Research on Image Azimuth Determination Based on...

Research on Image Azimuth Determination Based on Shadow Feature

Abstract:

Nowadays, the image azimuth determination is an important content of image processing. At present, the image azimuth is determined by solar azimuth angle achieved by look-up table, but the method is imprecise and inconvenient. To overcome such drawbacks, a novel determination method was proposed in the paper. First, the solar declination at imaging time is calculated. Then, the shadow deflection is determined by comparing the solar declination with the latitude of imaging place. Finally, the solar azimuth angle is calculated to determine the image azimuth based on the relation between shadow feature and solar azimuth angle. The theoretical analysis shows that the proposed method is more effectual then traditional methods.

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Periodical:

Applied Mechanics and Materials (Volumes 488-489)

Pages:

910-913

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.488-489.910

Citation:

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Online since:

January 2014

Authors:

Zhao Hui Liu*, Wen Bang Sun, Ming Li, Di Wu

Keywords:

Image Azimuth, Shadow Feature, Solar Azimuth Angle, Solar Declination

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* - Corresponding Author

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