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http://dx.doi.org/10.9708/jksci/2012.17.12.049

A Hardware Design for Realtime Correction of a Barrel Distortion Using the Nearest Pixels on a Corrected Image  

Song, Namhun (Dept. of Computer Engineering, Kwangwoon University)
Yi, Joonhwan (Dept. of Computer Engineering, Kwangwoon University)
Publication Information
Journal of the Korea Society of Computer and Information / v.17, no.12, 2012 , pp. 49-60 More about this Journal
Abstract
In this paper, we propose a hardware design for correction of barrel distortion using the nearest coordinates in the corrected image. Because it applies the nearest distance on corrected image rather than adjacent distance on distorted image, the picture quality is improved by the image whole area, solve the staircase phenomenon in the exterior area. But, because of additional arithmetic operation using design of bilinear interpolation, required arithmetic operation is increased. Look up table(LUT) structure is proposed in order to solve this, coordinate rotation digital computer(CORDIC) algorithm is applied. The results of the synthesis using Design compiler, the design of implementing all processes of the interpolation method with the hardware is higher than the previous design about the throughput, In case of the rear camera, the design of using LUT and hardware together can reduce the size than the design of implementing all processes with the hardware.
Keywords
Barrel distortion correction; rear camera; fisheye lens; interpolation; spherical projection model; CORDIC algorithm;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 S. Chen, H. Huang, and C. Luo, "Time multiplexed VLSI architecture for realtime barrel distortion correction in video endoscopic images," Circuits and Systems for Video Technology, IEEE Trans. on, Vol 21, No 11, pp. 1612-1621, November 2011.   DOI   ScienceOn
2 W. Feng, Y. Liu, "Omnidirectional vision tracking and positioning for vehicles," Natural Computation, 2008. ICNC '08. Fourth International Vol 6, pp. 183 -187, October 2008.
3 X. ming Dong, "Landmark design and realtime recognition based on fisheye image for robot navigation," Computer Engineering and Technology (ICCET), 2010 2nd International Conference on, Vol 1, pp. 437-440, April 2010.
4 J. Brauers, "Geometric calibration of lens and filter distortions for multispectral filter wheel cameras," IEEE Trans on Image Processing, Vol 20, No 2, pp. 496-505, February 2011.   DOI   ScienceOn
5 T. Rahman, "An efficient camera calibration technique offering robustness and accuracy over a wide range of lens distortion," IEEE Trans on Image Processing, Vol 21, No 2, pp. 626-637, February 2012.   DOI   ScienceOn
6 Zijian Zhao, "Camera calibration with three noncollinear points under special motions," IEEE Transactions on Image Processing, Vol 17, No 12, pp. 2393-2402, December 2008.   DOI   ScienceOn
7 K. Y. Shin, "Multi camera calibration method for optical motion capture system," Journal of the Korea society of computer and information, Vol 14, No 6, pp. 41-49, June 2009.   과학기술학회마을
8 M. Ahmed, "Nonmetric calibration of camera lens distortion: differential methods and robust estimation," IEEE Transactions on Image Processing, Vol 14, No 8, pp. 1215-1230, August 2005.   DOI   ScienceOn
9 K. Johnson, P. W. Smith, and M. A. Abidi, "A quadric surface projection model for wide angle lenses," Proc. of SPIE Conf. on Intelligent Robots, and Computer Vision XVII: Algorithms, Techniques, and Active Vision, Vol. 3522, Boston, MA, November. 1999, pp. 424-434.
10 M. Sone, N. Sudo, H. Yokotsuka, "Comparison of image interpolation methods applied to least squares matching," Computational Intelligence for Modelling Control & Automation, 2008 Internation al Conference on, pp. 1017-1022, December 2008.
11 S. M. Jung, "Quality improvement scheme of interpolated image using the characteristics of the adjacent pixels," Journal of the Korea society of computer and information, Vol 16, No 11, pp. 95-102, October 2011.   과학기술학회마을   DOI   ScienceOn
12 J. Y. Han, "Fisheye image correction and low power scaler design," master's thesis, Kwangwoon University, 2010.
13 Y. J. Lee, "Near pixels fisheye lens image correction based on near pixels of a corrected image,"master's thesis, Kwangwoon University, 2011.
14 K. Vijayan Asari, "Design of an efficient VLSI architecture for non linear spatial warping of wide angle camera images," Journal of Systems Architecture, Vol. 50, No 12, pp. 743-755, August 2004.   DOI   ScienceOn
15 H. T. Ngo and V. K. Asari, "A pipelined archi tecture for realtime correction of barrel distortion in wide angle camera images," IEEE Trans. Circuits Syst. Video Techno., Vol. 15, No. 3, pp. 436-444, March 2005.   DOI   ScienceOn
16 P. Y. Chen, C. C. Huang, Y. H. Shiau, and Y.T. Chen,"A VLSI implementation of barrel distortion correction for wide angle camera images," IEEE Trans. Circuits Syst. 2 Express Briefs, Vol. 56, No. 1, pp. 51-55, January 2009.   DOI   ScienceOn
17 Synopsys Inc, "DesignWare building block IP." [Online]. Available: http://www.synopsys.com
18 J. Volder, "The CORDIC trigonometric computing technique," Electronic Computers, IRE Transactions on, Vol EC-8, No 3, pp. 330-334, September 1959.   DOI   ScienceOn
19 Kodak lossless true color image, http://r0k.us/graphics/kodak