Showing papers on "Distance transform published in 1980"
TL;DR: This paper shows how a simple label propagation technique, in conjunction with some novel ideas about how labels can be applied to an image to express semantic knowledge, leads to the simplification of a number of diverse and difficult image analysis tasks.
34 citations
Patent•
19 Mar 1980TL;DR: In this paper, the authors derived a representation of the autocorrelation function of the brightness distribution of the image of a point by dividing the image point representation into a quotient formed by the average of the norm of the correlation function for each image point and varying the distance between the objective and the sample.
Abstract: Every image point of an image of a sample formed by an optical objective, focussed by, for each image point, deriving a representation of the autocorrelation function of the brightness distribution of the image of that image point, deriving a representation of the average of the autocorrelation function of the brightness distribution of a plurality of image points in the region of that image point, deriving a representation constituting a function of the quotient formed by dividing the representation of the autocorrelation function for that image point by the representation of the average of the autocorrelation function, and varying the distance between the objective and the sample while iteratively performing the above steps of deriving for determining the distance at which the function of the quotient has a maximum value.
21 citations