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Increase of noise immunity of photomask images binarization in the space of the wavelet transform

Author(s): Shcherbakova G. Yu. | Dilevsky A. A. | Krylov V. N. | Logvinov O. V. | Plachinda O. E.

Journal: Tekhnologiya i Konstruirovanie v Elektronnoi Apparature
ISSN 2225-5818

Issue: 6;
Start page: 23;
Date: 2011;
Original page

Keywords: binarization | wavelet-transform | subgradient | noise immunity

An information technology for histogram analysis and a method for noise immunity binary processing of integrated and printed circuits board photo-masks image based on this technology was carryed out. This method based on the sub-gradient iterative noise stability optimization method satisfies the demands of the automated optical control of photo-masks and printed circuits in the error and noise immunity. The maximum binary processing error does not exceed 1 pixel if the signal-to-noise ratio is more than 7.
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Tango Rapperswil
Tango Rapperswil