Entropy-based dual-portal-to-3-DCT registration incorporating pixel correlation.

For patient setup verification in external beam radiotherapy (EBRT) of prostate cancer, we developed an information theoretic registration framework, called the minimax entropy registration framework, to simultaneously and iteratively segment portal images and register them to three-dimensional (3-D...

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Bibliographic Details
Published in:	IEEE Transactions on medical imaging 22, 1 (2003).
Main Author:	Bansal, R.
Format:	Article
Language:	English
Subjects:	Accuracy. Entropy-based dual-portal-to-3-DCT registration. Estimated distribution. External beam radiotherapy. Image pixels. Information theoretic registration framework. Iterative segmentation. Line processes. Max step. Maximum entropy. Min step. Minimax entropy registration framework. Mutual information-based registration algorithm. One-dimensional Markov random process. Patient setup verification. Pelvic bone. Pelvic structure. Pixel correlation. Pixel intensities. Portal images. Probability distribution. Prostate cancer. Real patient data. Simulated patient data. Three-dimensional computed tomography image data. Transformation parameters. Ultrasound image data.