Performance Research of Gray-scale Image Registration Algorithm in Radiotherapy
- VernacularTitle:放疗中基于灰度的图像配准算法性能研究
- Author:
Mi ZHANG
;
Xiaoming WU
- Publication Type:Journal Article
- Keywords:
2D-2D image registration;
radiotherapy;
registration error
- From:
Chinese Medical Equipment Journal
1993;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To introduce the key issues of image registration in radiotherapy and study the performances of the three kinds of registry ways based on gray-scale registration, included mean-square measure, normalized correlation measure and mutual information measure. Methods After analysis of elements of the matching algorithm, the different registration algorithm performance are evaluated by the use of a comprehensive registration error based on C ++ to be realized, which can compare with the evaluation results of traditional target registration error. Results All three kinds of measure can both match accurately in plesiotype model images, which registration accuracy and speed in the standard of mutual information measure is more stable, integrated registration error is only half of the other two measures. Conclusion The comprehensive evaluation result by using registration error is more objective, the mutual information measure is better registration measure in radiotherapy.
