How to measure the body's parameter from the exist video?
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A non-intrusive and contactless method for measuring physiological parameters such as heart rate, interbeat interval, and respiration rate from video footage has been proposed . The method utilizes facial skin color variation caused by blood circulation to extract the blood volume pulse signal from facial regions. Signal processing techniques such as independent component analysis, fast Fourier transform, and principal component analysis are applied to the video frames to obtain the desired physiological parameters . Another approach involves dividing the video frames into blocks and selecting the block with the highest peak signal-to-noise ratio. A photoplethysmogram signal is then extracted from the selected block and processed to obtain an enhanced signal for determining the physiological parameter . These methods offer a non-contact and cost-effective solution for measuring physiological parameters from existing video footage, with potential applications in telemedicine and personal healthcare .
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| The paper describes a method to measure a physiological parameter by obtaining a PPG signal from a video image of a body part. The video image is divided into blocks, and the block with the highest peak signal-to-noise ratio (PSNR) is selected. A photo plethysmogram (PPG) signal is then extracted from the selected block, and further processing is performed to obtain an enhanced PPG signal for determining the value of the physiological parameter. | |
| The paper describes a physiological parameter measurement device that uses a video processing module to extract a photoplethysmogram (PPG) signal from a video of a body part, which can then be processed to determine the value of the physiological parameter. | |
| The paper describes a method for measuring physiological parameters from a video by filming the body part of the subject and analyzing the frames to determine the continuity of the video coherence. | |
| The paper proposes a non-contact method using video processing to measure physiological parameters such as heart rate, interbeat interval, and respiration rate. |
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