Life Sciences

Data on life sciences detailed by A. Mackenzie and co-authors

Published in Telemedicine Law Weekly, June 14th, 2008

According to a study from London, the United Kingdom, "Standard deviation is used as a measure of noise in digital images for quality control. For systems that have a non-linear response between pixel value and air kerma, the standard deviation of the pixel values will not be meaningful unless the image data is linearized using the response function of the system."

"Two methods are compared for estimating standard deviation without linearizing the image data. A estimates the true standard deviation by subtracting the corrected mean pixel value from the corrected sum of the mean pixel value and pixel standard deviation. B divides the pixel standard deviation by the...

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Source: Telemedicine Law Weekly (2008-06-14)

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