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Conference Paper on Non-Rigid Registration (NRR) Validation
Posted on Wednesday, January 11 @ 02:53:04 GMT by admin
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Our paper to ISBI 2006 has just been accepted and it is available on-line as well:
Abstract:
E compare two methods for assessing the performance of groupwise non-rigid registration algorithms. One approach, which has been described previously, utilizes a measure of overlap between data labels. Our new approach exploits the fact that, given a set of non-rigidly registered images, a generative statistical appearance model can be constructed. We observe that the quality of the model depends on the quality of the registration, and can be evaluated by comparing synthetic images sampled from the model with the original image set. We derive indices of model specificity and generalisation that can be used to assess model/registration quality. We show that both approaches detect the loss of registration as a set of correctly registered MR images of the brain is progressively perturbed. We compare the sensitivities of the different methods and show that, as well as requiring no ground truth, our new specificity measure provides the most sensitive approach to detecting misregistration.
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| Wednesday, October 19 | | · | Registration Assessment Without Ground Truth Proven Most Sensitive |
| Thursday, September 15 | | · | Registration Without Ground-Truth Solution - Proof of Concept/Empirical Evidence |
| Friday, September 02 | | · | FTP Access or a ZIP Archive |
| Wednesday, August 24 | | · | Registration: Tanimoto Overlap and Model-based Evaluation |
| Thursday, August 18 | | · | Specificity, Generalisation and Registration |
| Monday, July 25 | | · | Placing Labels at Strong Edges |
| Tuesday, July 19 | | · | Model Construction and Registration in Medical Imaging |
| Thursday, July 14 | | · | Euclidean Image Distance |
| Thursday, July 07 | | · | Evaluation of Appearance Models |
| Tuesday, July 05 | | · | Parallel Work |
| Monday, July 04 | | · | Label Propagation |
| Sunday, July 03 | | · | Segmentation Propagation from Model |
| Friday, July 01 | | · | Segmentation in Relation to Models and NRR |
| · | Mean of Squared Differences (MSD) Unstable at Registration |
| Thursday, June 30 | | · | 3-D Surface Visualisation |
| · | Migration of Code |
| · | MIAS-IRC and MARS |
| Wednesday, June 29 | | · | Simultaneous Segmentation, Registration and Models |
| · | Migration from AART to MARS |
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