Efficient Parallel Implementation of Active Appearance Model Fitting Algorithm on GPU

Table 1

The time per frame and the time per iteration of different data size.

Data size (pixels)	Time per frame (ms)		Time per iteration (ms)
	CPU	GPU	CPU	GPU
4096	75.57	9.74	7.56	0.97
8192	180.58	11.08	18.06	1.11
12288	271.40	12.65	27.14	1.27
16384	366.81	14.06	36.68	1.41
20480	445.58	15.18	44.56	1.52
24576	543.34	16.64	54.33	1.66
28672	632.59	17.94	63.26	1.79
32768	727.48	19.15	72.75	1.92
36864	813.35	20.58	81.34	2.06
40960	903.71	21.85	90.37	2.18
45056	1000.40	23.02	100.04	2.30
49152	1077.62	24.47	107.76	2.45
53248	1158.40	26.54	115.84	2.65
57344	1243.77	26.91	124.38	2.69
61440	1333.50	28.26	133.35	2.83
65536	1423.24	29.58	142.32	2.96