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

Table 1

Comparisons of MAEs of MLBP method to those of single-level LBP method (unit: years old).

Database and; shape of subblock	Single-level LBP	MLBP
Testing database 1
Rectangular block division	6.981	6.351
Squared block division	7.125	6.536
Testing database 2
Rectangular block division	7.531	7.322
Squared block division	7.345	6.625
Average MAE
Rectangular block division	7.256	6.837
Squared block division [13]	7.235	6.581