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

机译:基于FFT和DCT基相位相关函数的比较,用于聚焦和离焦图像

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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.
机译:本文介绍了基于DCT和FFT基相相关技术的比较研究,以估算聚焦和离焦图像中的翻译变换。 虽然基于FFT基的技术对于运动估计是高效的,但考虑到实时实现,基于DCT的技术更简单,计算得更有效。 模拟聚焦和离焦图像的实验结果显示了与像素和子像素级别的FFT相当的结果。

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