Comparative Study of Human Age Estimation with or without Preclassification of Gender and Facial Expression

Table 5

Comparison of MAEs with and without the preclassification of facial expression (unit: years old).

Database	Using only; MLBP	Using only; Gabor filtering	Proposed method
Facial expression database
Annoyed	6.00	10.526	6.605
Happy	8.121	12.168	8.102
Neutral	6.396	11.644	6.360
Sad	10.063	12.484	10.641
Surprised	8.645	10.671	8.290
Average MAE	7.218	11.715	7.226
Whole PAL database	6.581	11.908	6.528