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Keywords: auto-focus
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Journal Articles
Journal:
World Journal of Engineering
World Journal of Engineering (2012) 9 (1): 51–56.
Published: 01 March 2012
... as evaluation function in auto-focus technology. Image definition evaluation function based on gradient is adopted in large step. Image definition evaluation function based on frequency-domain is adopted in small step. Search strategy adopts threshold method and curve fitting method. Edge invariant moment...
