Yupeng Guo, Shengzhong Rong, Jing Dong, Tao Ji, Yingying Niu, Hongjun Guan
Perceptions of attitudes toward statistics among medical undergraduates: insights from a regional medical college in China
BMC medical education
automatic analysis human facial expression challenging problem many applications existing automated systems facial expression analysis attempt recognize prototypic emotional expressions anger happiness instead representing another approach machine analysis prototypic facial expressions emotion method presented paper attempts handle large range human facial behavior recognizing facial muscle actions produce expressions virtually existing vision systems facial muscle action detection deal frontalview face images cannot handle temporal dynamics facial actions paper present system automatic recognition facial action units aus temporal models long profileview face image sequences exploit particle filtering track 15 facial points input faceprofile sequence introduce facialactiondynamics recognition continuous video input using temporal rules algorithm performs automatic segmentation input video facial expressions pictured recognition temporal segments ie onset apex offset 27 aus occurring alone combination input faceprofile video recognition rate 87 achieved