文档介绍：Lung Image Volume Registration Using the Affine
Transformation and Demons Algorithm
Yingyue Zhou Hongbin Zang
School of Information Engineering School of Manufacturing Science and Engineering
Southwest University of Science and Technology Southwest University of Science and Technology
MianYang, Sichuan, 621010, China MianYang, Sichuan, 621010, China
******@. zanghongb@
Abstract—A method to register the expiration and inspiration references[3-5], some feature points (anatomical feature points
breath-hold HRCT lung image volumes was presented. We or lung surfaces points) were chosen to server as finding the
considered that the deformation between the expiration and sparse displacement field. For the local deformation, some
inspiration of lung can be posed into a global affine references [1-3] minimized an energy posed of a
transformation and a local deformation. Before registration, we tradeoff between image dissimilarity and deformation
segmented the lung parenchyma from thoracic HRCT slices. regularity; while, the other reference [4] employed radial basis
Then, we used a prior anatomy knowledge based method to find functions (RBFs) using the shifted log function for elastic
the global affine transformation parameters, and re-sampled a warping. These articles analyzed the registration techniques in
side of lung to align the c