Inspec keywords: feature extraction; medical image processing; emotion recognition; image sequences; muscle; face recognition; video signal processing; pose estimation

Other keywords: nonlocalised physical fatigue detection; supervised descent method; head motion; facial feature point tracking method; realistic environment; natural lighting; facial expression; face quality assessment system; video sequence; pose variation; maximal muscle activity; facial video-based detection

Subjects: Medical and biomedical uses of fields, radiations, and radioactivity; health physics; Patient diagnostic methods and instrumentation; Computer vision and image processing techniques; Biology and medical computing; Video signal processing; Biomedical measurement and imaging; Image recognition