Comparison of two methods for measuring orientation
Related Experiment Video
Updated: Oct 28, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
Published on: August 22, 2025
1Department of Oral Radiology, Academic Center for Dentistry Amsterdam (ACTA), The Netherlands.
Abstract:
At the Department of Dental Radiology of ACTA, the line fraction deviation (LFD) method was developed to measure orientation on radiographic trabecular patterns. This article explains the measurement of the LFD index of orientation in a downscaled model. When investigations began to produce noteworthy results, the need for deeper understanding of the method and the resulting diagrams increased. Because it had previously been applied on rather complex patterns originating from bone it seemed worthwhile to study simpler images as well, which might yield a more intuitive understanding of the diagrams. Moreover, it seemed useful to compare the new LFD method with the well-accepted mean intercept length (MIL) method. Fifty images originating from cancellous bone structures and 25 drawings were analyzed. The results show that the MIL method tends to produce ellipses (not only on images originating from bone), and also that the LFD method is more sensitive to anisotropy.
Related Concept Videos
Relative Motion Analysis using Rotating Axes
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it instrumental in...
Relative Motion Analysis using Rotating Axes-Problem Solving
Here, in order to determine the magnitude of velocity and acceleration for point...
Properties of Enantiomers and Optical Activity
Oriented Surfaces
Adjusting a Traverse
Angle of Twist: Problem Solving
