Sleeve for Knee Angle Monitoring: An IMU-POF Sensor Fusion System. - Laura Susana Vargas-Valencia; Felipe B. A. Schneider; Arnaldo G. Leal-Junior; Pablo Caicedo-Rodríguez; Wilson Alexander Sierra Arévalo; Luis Eduardo Rodríguez Cheu; Teodiano Freire Bastos-Filho; Anselmo Frizera-Neto (IEEE J. Biomed. Health Informatics, 2021)