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- W2363752931 abstract "Centroid algorithm is common used in star point centers calculation.An in-depth study was made to improve the accuracy of the centroid algorithm.The universal model of centroid algorithm was proposed based on 3 different formulae of centroid algorithm.And two parameters in this model the threshold T and the exponent of gray-weighted k could greatly influence the accuracy of centroid algorithm.The relationship between the accuracy of centroid algorithm and the parameters T and k was analyzed with both simulated and actual star images,and the same conclusions were obtained.When T and k increasing from 0,the centroid error went down in first and then up.With T and k being background gray and 2.0 respectively,the minimum centroid error was obtained.T cannot be set too big to reserve enough information,but the same high-accuracy purpose could be reached through increasing k.The accuracy could increase more than 25% using the appropriate T and k." @default.
- W2363752931 created "2016-06-24" @default.
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- W2363752931 date "2012-01-01" @default.
- W2363752931 modified "2023-09-24" @default.
- W2363752931 title "High-Accuracy Centroid Algorithm of Star Points" @default.
- W2363752931 hasPublicationYear "2012" @default.
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