Realtime PPG based respiration rate estimation for remote health monitoring applications. - Selvakumar Karuppusamy; Elumalai Vinodh Kumar; M. Sailesh; Mamtani Varun; Anbu Allan; Nanda Biswajit; Panga Namrata; Sivaramakrishnan Upasana (Biomed. Signal Process. Control., 2022)