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The gold-standard rigid-body rotational difference for each registration was set by rotating one image in the image pair with respect to the other image.
They've found indications that the inner core is rotating slightly faster than the rest of the planet, although geologists disagree on the size of that rotational difference and on how, exactly, the core manages to resist being gravitationally locked to the surrounding mantle.
The experimental results clearly supported this idea, because it was found that, for each subject, the time taken to confirm that both objects of a pair were, in fact, identical, increased in direct proportion to the angular rotational difference between them.
Figure 1 shows a schematic of the method for estimating the rotational difference.
The synthetic rotational difference between the two images Figures 2(a) and 2(c) was 11.46°.
Thus, the rotational difference D2 indicates the cosine between u i of data x i and u1 of data y1.
Similar(37)
A one-sample t-test was used to investigate whether the six means of the translational and rotational differences differ significantly from zero.
The three translational differences (ulnar, dorsal, and distal translational) and three rotational differences (palmar rotation, ulnar deviation, and pronation) are derived from the 4 × 4 transformation matrices that resulted from image registration [ 13].
FP assay is based on the rotational differences between a small soluble molecule in solution (labeled with a fluorochrome) and the small molecule combined with its ligand.
Translational differences of two methods are 28% in x-axis and 29% in y-axis and rotational differences are17% in x-axis, 23% in y-axis and 13% in z-axis.
The main motivation for using visual features to match radar scans instead of trying to align the radar scans is that visual features are easily matched despite large translational and rotational differences, which is more difficult using other scan matching techniques.
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