A METHOD FOR EARLY DETECTION AND IDENTIFICATION OF MICROBIAL-COLONIES, APPARATUS FOR PERFORMING THE METHOD AND COMPUTER PROGRAM
First Claim
1. Method for detection of microbial colonies on a surface, comprising:
- obtaining one or a plurality of digital images (I0, I1, I2, I3, I4) of the surface, said digital images (I0, I1, I2, I3, I4) being represented by at least two-dimensional matrices of pixel values;
calculating a statistical noise distribution based on at least one of the digital images (I0);
applying the statistical noise distribution calculated in the calculation step to the one or the plurality of digital images (I0, I1, I2, I3, I4); and
detecting an object of interest as a candidate for a microbial colony based on deviation of pixel values from the noise distribution.
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Abstract
The present invention is directed to a method for detection of microbial colonies on a surface, comprising the steps of obtaining one or a plurality of digital images I0, I1, I2, I3, I4 of the surface, said digital images I0, I1, I2, I3, I4 being represented by at least two-dimensional matrices of pixel values, calculating a statistical noise distribution based on at least one of the digital images I0, applying the statistical noise distribution calculated in the calculation step to the one or the plurality of digital images I0, I1, I2, I3, I4, and detecting an object of interest as a candidate for a microbial colony based on deviation of pixel values from the noise distribution.
7 Citations
17 Claims
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1. Method for detection of microbial colonies on a surface, comprising:
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obtaining one or a plurality of digital images (I0, I1, I2, I3, I4) of the surface, said digital images (I0, I1, I2, I3, I4) being represented by at least two-dimensional matrices of pixel values; calculating a statistical noise distribution based on at least one of the digital images (I0); applying the statistical noise distribution calculated in the calculation step to the one or the plurality of digital images (I0, I1, I2, I3, I4); and detecting an object of interest as a candidate for a microbial colony based on deviation of pixel values from the noise distribution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 17)
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10. An apparatus for detection of microbial colonies on a surface, comprising:
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means (1) for obtaining one or a plurality of digital images (I0, I1, I2, I3, I4) of the surface, said digital images (I0, I1, I2, I3, I4) being represented by at least two-dimensional matrices of pixel values; means (3) for calculating a statistical noise distribution based on at least one of the digital images (I0); means (5) for applying the statistical noise distribution calculated in the calculation step to the plurality of digital images (I0, I1, I2, I3, I4); and means (7) for detecting an object of interest as a candidate for a microbial colony based on deviation of pixel values from the noise distribution. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification