The Improved Algorithm of Fast Panorama Stitching for Image Sequence and Reducing the Distortion Errors

Table 1

Experimental data in extracting SIFT features.

Number	Number of SIFT feature points	Time(s)
		Scale space extrema detection	Keypoint localization	Orientation assignment	Keypoint descriptor	Total
Figure 2(a)	2844	1.716	1.670	0.249	2.590	5.225
Figure 2(b)	2269	1.635	1.451	0.203	2.012	4.319
Figure 2(c)	2652	1.685	1.576	0.202	2.278	4.741
Figure 2(d)	3315	1.528	1.748	0.249	2.839	5.364