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http://dx.doi.org/10.5573/ieek.2013.50.6.131

Design and Implementation of a Low-Complexity Real-Time Barrel Distortion Corrector for Wide-Angle Cameras  

Jeong, Hui-Seong (School of electronics, Telecommunication and computer engineering, Korea Aerospace University)
Kim, Won-Tae (School of electronics, Telecommunication and computer engineering, Korea Aerospace University)
Lee, Gwang-Ho (School of electronics, Telecommunication and computer engineering, Korea Aerospace University)
Kim, Tae-Hwan (School of electronics, Telecommunication and computer engineering, Korea Aerospace University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.6, 2013 , pp. 131-137 More about this Journal
Abstract
The barrel distortion makes serious problems in a wide-angle camera employing a lens of a short focal length. This paper presents a low-complexity hardware architecture for a real-time barrel distortion corrector and its implementation. In the proposed barrel distortion corrector, the conventional algorithm is modified so that the correction is performed incrementally, which results in the reduction of the number of required hardware modules for the distortion correction. The proposed barrel distortion corrector has a pipelined architecture so as to achieve a high-throughput correction. The correction rate is 74.86 frames per sec at the operating frequency of 314MHz in a $0.11{\mu}m$ CMOS process, where the frame size is $2048{\times}2048$. The proposed barrel distortion corrector is implemented with 14.3K logic gates.
Keywords
barrel distortion; distortion correction; wide-angle lens; hardware implementation; digital signal processing;
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Times Cited By KSCI : 2  (Citation Analysis)
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