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Journal of Electronic Imaging

On the standard deviation in charge-coupled device cameras: a variogram-based technique for nonuniform images
Author(s): Luis Miguel Sanchez-Brea; Eusebio Bernabeu
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Paper Abstract

When estimating the standard deviation of a magnitude with spatial dependence, it is necessary to carry out several measurements at every location where the magnitude is estimated. However, in image applications the standard deviation is commonly measured by means of only one high-uniform image. This procedure tends to increase the standard deviation due to spatial nonuniformity of the image. In this work we propose a new technique based on the variogram, which is a function that measures the spatial correlation of the image, that can be employed to accurately estimate the standard deviation of nonuniform images obtained by charge-coupled device cameras.

Paper Details

Date Published: 1 April 2002
PDF: 6 pages
J. Electron. Imag. 11(2) doi: 10.1117/1.1427043
Published in: Journal of Electronic Imaging Volume 11, Issue 2
Show Author Affiliations
Luis Miguel Sanchez-Brea, Univ. Complutense de Madrid (Spain)
Eusebio Bernabeu, Univ. Complutense de Madrid (Spain)


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