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US 7,444,035 B2Granted
Better picture for inexpensive cameras
AssigneeArcSoft, Inc.
InventorsDonghui Wu, Lingxiang Zhou
Life of this patent
Estimating the term…
Abstract
A method for correcting a radial distortion in an image includes receiving a radial distortion parameter from the user and calculating new intensity values of points in the image to correct a radial exposure distortion in the image.
Claims7
A method for correcting a radial exposure distortion in an image, comprising:
- calculating new intensity values of points in the image with the following equation:
- I′(x,y)=I(x,y)1+k(x2+y2),
- where I′(x,y) is an intensity value of a point in the image with radial exposure, I(x,y) is an intensity value of the point without radial exposure, (x,y) are the coordinates of the point, and k is a radial distortion parameter.
Dependencies are inferred from the claim text.