Noncontact 2D Plethysmography (N2DP) is a noninvasive lung volume monitoring technology for detecting and evaluating dynamic trends in human respiratory systems. The N2DP aims to eliminate any physical contact with the patient and produce volume and flow waveforms of normal breathing maneuvers by monitoring optical flow of the real-time video recording and creating movements’ optical flow vectors’ velocity field. Through such real-time detection of normal-breathing maneuvers and simultaneous analysis of corresponding normal flow-volume loops, N2DP demonstrates potential for real-time monitoring of patient’s respiratory mechanics.
Generally accepted non-invasive technologies rely on the sum of the changes detected at two specific points during a breathing cycle, thus, ignoring small and systematic distortions. By contrast, N2DP takes advantage of contemporary advances in image processing allowing analysis of infinite number of points on a series of images to produce flow-volume plot of patients’ normal breathing maneuver while providing less invasiveness than standard non-invasive technologies.
|Commitee:||Ary, James, Druzgalski, Christopher, Hamano, Fumio|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 51/05M(E), Masters Abstracts International|
|Subjects:||Biomedical engineering, Electrical engineering|
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