Table 1: Comparisons of the recognition accuracy (%) and running time (ms) between single DBN and double DBNs (5 training samples per class, other 5 images per class as test samples,100 classes BJJTU Palmprint Database).

Recognition Accuracy (%) T1(ms) T2(ms) T(ms)
DBN(P) 92.88 13.0433 0.0116 13.0549
DBN(R) 48.52 20.1200 0.0098 20.1298
IR-DDBN 95.56 22.6392 0.0159 22.6550