In this paper, we propose a methods to eliminate PPG sensor noise resulted from user motion during measurement. Measured PPG signals require approperiate signal processing methods since various types of noises such as a motion noise by user movement and signal noises occurred from the change of measuring environments. This paper suggests a signal processing method that eliminates motion noises by measuring several PPG channels that are based on the stable patterns of the practical users. The PPG signals are measured by the two channels in this experiment. When the individual error rates are 20%, the proposed algorithm reduces the errors to 9.56%. ※ 본 논문은 2012년 울산대학교 연구비에 의하여 연구되었습니다.First Author:울산대학교 전기공학부,
A mobile phone (Hand Phone) is designed to display stereo images taken from a camera attached to it.Software of processing a stereo image pair to be displayed on the display panel of the phone is developed and a detachable viewing zone forming optics is installed for the stereoscopic image generation without moirés. Since the phone is operating only in the palm of the phone's owner, special cares needed in photographing the image pair are described.
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