Method and apparatus for removing image noise
AssigneeSamsung Electronics Co., Ltd.
InventorsMi-yeon LEE, Seung-hoon HAN
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Abstract
Provided are a method and apparatus for removing image noise. The method includes: separating an input image signal into a signal component and a noise component; converting the noise component into a decorrelated noise component that is spatiotemporally decorrelated from neighboring pixels; and generating an image signal by adding the decorrelated noise component to the signal component.
Claims16
A method of removing image noise, the method comprising:
- separating an input image signal into a signal component and a noise component;
- converting the noise component into a decorrelated noise component that is spatiotemporally decorrelated from neighboring pixels;
- and
- generating an output image signal by adding the decorrelated noise component to the signal component.
An apparatus for removing image noise, the apparatus comprising:
- a signal separating unit which separates an input image signal into a signal component and a noise component;
- a decorrelation performing unit which converts the noise component into a decorrelated noise component that is spatiotemporally decorrelated from neighboring pixels;
- and
- an adding unit which adds the decorrelated noise component to the signal component to obtain an output image signal.
A computer-readable recording medium having embodied thereon a program for executing a method of removing image noise, the method comprising:
- separating an input image signal into a signal component and a noise component;
- converting the noise component into a decorrelated noise component that is spatiotemporally decorrelated from neighboring pixels;
- and
- generating an image signal by adding the decorrelated noise component to the signal component.
Dependencies are inferred from the claim text.