A VLSI implementation of barrel distortion correction for wide-angle camera images

  • Authors:
  • Pei-Yin Chen;Chien-Chuan Huang;Yeu-Horng Shiau;Yao-Tung Chen

  • Affiliations:
  • Digital IC Design Laboratory, Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan;Digital IC Design Laboratory, Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan;Digital IC Design Laboratory, Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan;Digital IC Design Laboratory, Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan

  • Venue:
  • IEEE Transactions on Circuits and Systems II: Express Briefs
  • Year:
  • 2009

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Abstract

Wide-angle cameras are widely used in surveillance and medical imaging applications nowadays. Images captured by wide-angle lens suffer from barrel distortion which means that the outer regions of the image are compressed more than the inner one. A low-cost high-speed VLSI implementation for barrel distortion correction is presented in this brief. In our simulation, the proposed circuit can achieve 200 MHz with 45 K gate counts by using TSMC 0.18 µm technology. Compared with the previous distortion correction design, our circuit requires less hardware cost and achieves faster working speed.