Local Dominant Directional Symmetrical Coding Patterns for Facial Expression Recognition

Table 4

The feature size and feature extraction time of different descriptors on the JAFFE database.

Descriptor	Feature size	Feature extraction time (s)
LBP [17]	16384	92.56
CS-LBP [18]	1024	6.18
Gabor [19]	40960	1332.15
HOG [20]	2304	2.35
LDP [13]	16384	86.33
LDNP [14]	4096	46.75
es-LBP [15]	1534	206.88
GDP [21]	16384	234.21
LDDSCP	896	7.84