In their daily work, radiologists often need tolocalize and align parts of CT
volume scans to perform among others differential diagnosis. In these cases,
it is desired to load only the relevant sub volume of the scan and toalign
the sub volume automatically to the correct position of the query scan.
Common techniques employ landmark detectors and interpolation to solve this
problem. Yet, these techniques are are not applicable in case of very small
volume scans where the query scan comprises only a small amount of images. In
this paper, we propose a method to use small sub volumes in CT volume scans
for identifying and aligning CT Scans. Our solution employs combinations of
weighted image descriptors and instance-based regression and thus
demonstrates the need for machine learning techniques in the case of position
prediction. The experiments show that the new method improves the mean error
and standard deviation by 6% and 10%, respectively, compared to a state of
the art method.
Proc. of the 28textsuperscriptth International Conference on Machine Learning (ICML). Workshop on Learning for Global Challenges