Method and apparatus for reducing noise
AssigneeHanwha Techwin Co., Ltd.
InventorEun Cheol Choi
Life of this patent
Estimating the term…
Abstract
Provided are an apparatus and method of reducing noise of an image. The apparatus for reducing noise of an image includes: a motion detector configured to detect a motion from a current image; a weight setting unit configured to set a weight of the current image based on the motion and a weight of a previous image; and a noise reduction unit configured to apply the weight of the current image to the current image to reduce temporal noise of the current image.
Claims20
An apparatus for reducing noise of an image, the apparatus comprising at least one processor to implement:
- a motion detector configured to detect a motion from a current image;
- a weight setting unit configured to set a weight of the current image to be an average of a first weight corresponding to the motion and a weight of a previous image, when the first weight of the current image is less than the weight of the previous image;
- and
- a noise reduction unit configured to apply the average of the first weight and the weight of the previous image to the current image to reduce temporal noise of the current image.
A method of reducing noise of an image, the method comprising:
- detecting a motion from a current image;
- setting a weight of the current image to be an average of a first weight corresponding to the motion and a weight of a previous image, when the first weight of the current image is less than the weight of the previous image;
- and
- applying the average of the first weight and the weight of the previous image to the current image to reduce temporal noise of the current image.
Dependencies are inferred from the claim text.