. Author manuscript; available in PMC: 2009 Aug 1.

Published in final edited form as: Med Image Anal. 2008 Jan 17;12(4):397–412. doi: 10.1016/j.media.2007.12.005

Table 2.

The mean MLE scores for synthetic data using four tracking techniques over 50 frames. Normalized MLE scores (0–100) were calculated every 25 frames according to Equation (10): 0 for the perfect match to 100 for the worst. The best results are shown in italic. Results are comparable to those in Table 1 for in-vivo data.

	Mean/Std conserr		Mean/Std abserr
	Frames 1–25	Frames 26–50	Frames 1–25	Frames 26–50
Block Matching	2.12±0.19	3.29±0.49	6.91±5.28	7.94±5.06
Optical Flow	3.96±1.24	4.12±1.64	7.07±5.12	7.02±3.74
Block Matching - Optical Flow	5.64±2.60	6.03±3.43	7.18±4.96	8.39±4.23
Block Flow	2.53±0.11	2.52± 0.12	2.84±0.21	2.87±0.15