Lens distortion correction and enhancement based on local self-similarity for high-quality consumer imaging systems | IEEE Journals & Magazine | IEEE Xplore

Lens distortion correction and enhancement based on local self-similarity for high-quality consumer imaging systems


Abstract:

In this paper, a novel image enhancement system for a wide-angle lens camera is presented. The proposed system consists of; i) lens distortion correction using space-vary...Show More

Abstract:

In this paper, a novel image enhancement system for a wide-angle lens camera is presented. The proposed system consists of; i) lens distortion correction using space-varying interpolation kernels and ii) image restoration based on the local self-similarity. The correction process for the geometric distortion produced by a wide-angle lens results in radial distortion artifacts caused by non-linear resampling. To reduce such artifacts, the proposed algorithm uses space-varying interpolation kernels derived from the lens calibration data. The corrected image is further enhanced using self-example-based image restoration. Experimental results demonstrate the proposed method can correctly remove the geometric distortion and further enhance the quality of the radially interpolated image.
Published in: IEEE Transactions on Consumer Electronics ( Volume: 60, Issue: 1, February 2014)
Page(s): 18 - 22
Date of Publication: 02 April 2014

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