Abstract: We propose a new star pattern identification algorithm using the vector pattern matching technique on the celestial sphere. The proposed algorithm provides more robust identification ...

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From the enormous blue whale to the delicate monarch butterfly, animals of all shapes and sizes migrate across the globe. These migrations connect distant habitats, from the tropics to the poles.

Seamless star shape US holiday American US patriotic border background pattern. Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on ...