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Due to mathematical limitations, conventional phase-only correlation (POC) technique can only be applied to grayscale images or at most complex images. A full color image must be first converted to a grayscale one before performing the POC, during which the chrominance information has been wasted. In this paper, a novel extension of the POC technique to the quaternion field (QPOC) is proposed, which...
The aim of this paper is to describe the implementation a face tracking algorithm for video conferencing environment using the normalized cross correlation method. The reference image was selected based on human skin properties in the YCbCr color space. The results obtained on different color spaces showed that the YCbCr color space had higher tracker detection rates (TDR) compared to the RGB and...
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