. Author manuscript; available in PMC: 2017 Dec 1.

Published in final edited form as: Biomech Model Mechanobiol. 2016 Mar 5;15(6):1467–1478. doi: 10.1007/s10237-016-0776-3

Table 1.

Comparison of image analysis methods using grayscale confocal images of bovine ligament at 63x and 20x.

	FFT, Band-pass (FiberFit)		FFT, Minimum (Matlab)		Structure Tensor (OrientationJ)
	63x	20x	63x	20x	63x	20x
μ Error	3.3 ± 3.1 deg	3.8 ± 3.0 deg	14.4 ± 16.3 deg	16.2 ± 12.2 deg	4.1 ± 5.3 deg	2.4 ± 1.8 deg^a
k Error	13.3 ± 8.2%^b	35.0 ± 15.5%^a	31.1 ± 23.1%	83.8 ± 7.5%	52.0 ± 23.4%	48.1 ± 18.2%^a

= More accurate results than the FFT, minimum method (p <0.05)

= More accurate results than the structure tensor method (p <0.05)