An Algorithm of Refinement of Image Alignment for Image Subtraction

Details An Algorithm of Refinement of Image Alignment for Image Subtraction An Algorithm of Refinement of Image Alignment for Image Subtraction

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..434..465y&link_type=abstract

Astronomical Data Analysis Software and Systems XIX. Proceedings of a conference held October 4-8, 2009 in Sapporo, Japan. Edite

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An algorithm is presented for estimating a shift between a pair of images. When subtracting a image from another image with a slight shift, we recognize many positive-negative (bipolar) pattern around objects. The idea of this study is to use the pattern for estimating the best alignment solution. Moving one image around the other, we can draw many vectors toward the best position, and estimate the best position as the intersection of the vectors.

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