Obtaining the Heart Rate Information from the Speckle Images by Fractal Analysis Method

Obtaining the Heart Rate Information from the Speckle Images by Fractal Analysis Method

Heart rate is the main data that shows if the heart is working properly. Therefore, obtaining the heartrate information has a vital importance. There are some methods to measure the heart rate, but themost commonly used one is the Electrocardiography (ECG). However, this method is expensive andnon-portable. Therewithal, optical studies have recently been conducted to measure heart rate. Beingnon-invasive, inexpensive, and safe are the advantages of optical measurements. Laser specklecontrast imaging is an effective and simple technique for imaging heterogeneous environments suchas human and animal tissues. By laser speckle contrast analysis, heart rate can be obtained easily. Itis the standard technique, but fractal analysis method is also very convenient way to study speckleimages because speckle pattern is quite appropriate for studying fractality due to its granularstructure. In this paper, we present fractal analysis method for obtaining heart rate information fromspeckle images. The results of this method for the various in-vivo and in-vitro data were comparedwith the reference model results of speckle contrast analysis method and it is observed that theproposed analysis method has provided sufficient results.

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