alexa Generalized spin filtering and an improved derivative-sign binary image method for the extraction of fringe skeletons.
Engineering

Engineering

International Journal of Sensor Networks and Data Communications

Author(s): Yu Q, Liu X, Sun X

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Abstract Generalized spin filters, including several directional filters such as the directional median filter and the directional binary filter, are proposed for removal of the noise of fringe patterns and the extraction of fringe skeletons with the help of fringe-orientation maps (FOM's). The generalized spin filters can filter off noise on fringe patterns and binary fringe patterns efficiently, without distortion of fringe features. A quadrantal angle filter is developed to filter off the FOM. With these new filters, the derivative-sign binary image (DSBI) method for extraction of fringe skeletons is improved considerably. The improved DSBI method can extract high-density skeletons as well as common density skeletons.
This article was published in Appl Opt and referenced in International Journal of Sensor Networks and Data Communications

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