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http://dx.doi.org/10.5573/ieie.2014.51.9.057

A Low-Complexity Real-Time Barrel Distortion Correction Processor Combined with Color Demosaicking  

Jeong, Hui-Seong (School of electronics, Telecommunication and computer engineering, Korea Aerospace University)
Park, Yun-Ju (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.51, no.9, 2014 , pp. 57-66 More about this Journal
Abstract
This paper presents a low-complexity barrel distortion correction processor for wide-angle cameras. The proposed processor performs the barrel distortion correction jointly with the color demosaicking, so that the hardware complexity can be reduced significantly. In addition, to reduce the required memory bandwidth, an efficient memory interface is proposed by utilizing the spatial locality of the memory access in the correction process. The proposed processor is implemented with 35K logic gates in a $0.11-{\mu}m$ CMOS process and its correction speed is 150 Mpixels/s at the operating frequency of 606MHz, where the supported frame size is $2048{\times}2048$ and the required memory bandwidth is 1 read/cycle.
Keywords
barrel distortion correction; color demosaicking; wide-angle lens; very large scale integration (VLSI); digital signal processing;
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Times Cited By KSCI : 2  (Citation Analysis)
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