Method and apparatus for estimating breathing rate

摘要: A method and apparatus for extracting a breathing rate estimate from video images of respiring subject. Signals corresponding to the spatial coordinates feature points tracked through sequence are filtered excessively large changes attenuated reduce movement artefacts. The signals differentiated which correlate most strongly with other selected. selected subject principal component analysis best quality top five components is its frequency used calculate output estimate. particularly suitable detecting respiration in secure rooms where image substantially whole room only small part image, maybe covered or uncovered.