Image registration using robust correlation

Jeongtae Kim1, J.A. Fessler1
1Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, USA

Tóm tắt

We have investigated an intensity-based image registration technique using a robust correlation coefficient as a similarity measure. The proposed method has an advantage over the ordinary correlation coefficient since it reduces the effect of "outlier" image intensity values. For the application of image registration to radiotherapy or image-guided surgery, there may be outlier samples due to the presence of the objects such as surgical instruments. We have verified the usefulness of the proposed method by simulation and phantom experiment.

Từ khóa

#Robustness #Covariance matrix #Equations #Image registration #Maximum likelihood estimation #Surgery #Surgical instruments #Imaging phantoms #Shape #Gaussian distribution

Tài liệu tham khảo

10.1118/1.597276 10.1109/4233.681173 huber, 1981, Robust Statistics Wiley Series in Probability and Statistics, 10.1002/0471725250 10.1016/0360-3016(95)02082-9 10.1088/0031-9155/41/4/008 10.1118/1.598005 10.1118/1.1420395