基于FFT和DCT的相位相关函数对聚焦和散焦图像的比较

2012 International Conference on Machine Vision and Image Processing (MVIP) Pub Date : 2012-12-01 DOI:10.1109/MVIP.2012.6428788

A. Raj, S. Majeeth, R. Staunton

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引用次数: 3

摘要

本文提出了一种基于DCT和FFT的相位相关技术的比较研究，用于估计聚焦和散焦图像的平移位移。虽然基于FFT的技术对运动估计是有效的，但考虑到实时实现，基于DCT的技术更简单，计算效率更高。模拟聚焦和散焦图像的实验结果表明，在像素和亚像素水平上，FFT的结果与FFT相当。

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A comparison of FFT and DCT based Phase Correlation function for focused and defocused images

The paper presents a comparison study between DCT and FFT based Phase Correlation techniques to estimate translational shifts in focused and defocused images. Though FFT based techniques are efficient for motion estimation, considering real-time implementation, DCT based techniques are simpler and computationally efficient. Experimental results with simulated focused and defocused images show comparable results to FFT's both in pixel and sub-pixel levels.

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2012 International Conference on Machine Vision and Image Processing (MVIP)

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