Registration technique that matches binary boundary maps extracted from raw data, rather than matching actual data, is considerably faster than other techniques. Boundary maps, which are digital representations of regions where image amplitudes change significantly, typically represent data compression of 60 to 70 percent. Maps allow average products to be computed with addition rather than multiplication, further reducing computation time.
Image registration using binary boundary maps
NASA Tech Briefs ; 2 , 4
1978-03-01
Miscellaneous
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English
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