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Effects of image alignment error on vehicle license image reconstruction using non-uniform interpolation method

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2 Author(s)
Shih-Chieh Lin ; Dept. of Power Mech. Eng., Nat. Tsing Hua Univ., Hsinchu ; Chih-Ting Chen

In this study, effects of image alignment error on vehicle license image reconstruction using the non-uniform interpolation method were studied. It is expected that the increase in measurement error will degrade the reconstructed image. Several image registration methods which were used to estimate the position and orientation differences between low resolution images are also tested. It was found that the Fourier method is superior to other methods. The non-uniform interpolation method is then used to reconstruct vehicle license plate images from images with a character size as small as 3 times 6 pixels. Results show that although the number or character is still not easy to read, the reconstructed image shows a better readability than the original image.

Published in:

Cybernetics and Intelligent Systems, 2008 IEEE Conference on

Date of Conference:

21-24 Sept. 2008