Research of the multidimension high-accuracy subpixel subdivision algorithm based on TMS320C50

Heying Leng; Jingru Wang; Junzhao Dai

doi:10.1117/12.441596

25 September 2001 Research of the multidimension high-accuracy subpixel subdivision algorithm based on TMS320C50

Heying Leng, Jingru Wang, Junzhao Dai

Proceedings Volume 4553, Visualization and Optimization Techniques; (2001) https://doi.org/10.1117/12.441596
Event: Multispectral Image Processing and Pattern Recognition, 2001, Wuhan, China

Abstract

Based on the analysis on the bottleneck for improving CCD measurement resolving power in the high-accuracy image detection system, sub-pixel subdivision technology is presented. Through comparison the advantage and disadvantage of current subdivision algorithms, we propose a new 1D sub- pixel subdivision algorithm called Adaptive Weighing Fitting algorithm in the paper, which is suitable for such image as low contrast, low SNR and complex background. And we implement the real-time algorithm in the high-speed system platform based on TMS320C50. Then a fast 2D sub-pixel subdivision algorithm based on correlation feature and direction feature of image border is also discussed for improving the location accuracy of complex border. By many simulation experiments and practical detection in spot, the satisfied subdivision result are obtained.

Citation Download Citation

Heying Leng, Jingru Wang, and Junzhao Dai "Research of the multidimension high-accuracy subpixel subdivision algorithm based on TMS320C50", Proc. SPIE 4553, Visualization and Optimization Techniques, (25 September 2001); https://doi.org/10.1117/12.441596

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KEYWORDS

Image segmentation

Computer simulations

Digital imaging

Charge-coupled devices

Digital signal processing

Image processing

Image quality

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