Reducing noise in digital images
First Claim
Patent Images
1. A method comprising:
- receiving, from an image sensor, a target digital image contaminated by noise of unknown magnitude that is represented by a reference digital image; and
applying a process that uses statistical analysis of the target digital image and of the reference digital image, to estimate a magnitude of the noise for at least some pixels of the target digital image.
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Abstract
A target digital image is received from an image sensor. The image is contaminated by noise of unknown magnitude that is represented by a reference digital image. A process is applied that uses statistical analysis of the target digital image and of the reference digital image to estimate a magnitude of the noise for at least some pixels of the target digital image.
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Citations
26 Claims
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1. A method comprising:
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receiving, from an image sensor, a target digital image contaminated by noise of unknown magnitude that is represented by a reference digital image; and applying a process that uses statistical analysis of the target digital image and of the reference digital image, to estimate a magnitude of the noise for at least some pixels of the target digital image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus comprising
a software processor configured to receive, from an image sensor, a target digital image contaminated by noise of unknown magnitude that is represented by a reference digital image; - and
apply a process that uses statistical analysis of the target digital image and of the reference digital image, to estimate a magnitude of the noise for at least some pixels of the target digital image. - View Dependent Claims (25)
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26. An apparatus comprising
means for receiving, from an image sensor, a target digital image contaminated by noise of unknown magnitude that is represented by a reference digital image; - and
means for applying a process that uses statistical analysis of the target digital image and of the reference digital image obtained, to estimate a magnitude of the noise for at least some pixels of the target digital image.
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Specification