Perspectives Workshop: Visualization and Image Processing of Tensor Fields Dagstuhl Seminar
نویسندگان
چکیده
From 18.04.04 to 23.04.04, the Dagstuhl Seminar 04172 Perspectives Workshop: Visualization and Image Processing of Tensor Fields was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The rst section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available. Warping and Registration of Di usion Tensor MR Images Daniel Alexander (University College London, GB) I will discuss the problems of warping and registration of di usion-tensor MR images. The orientational information complicates the process of warping tensor elds, since the warp a ects both the location and orientation of the data. I will review the literature on strategies for data reorientation during tensoreld warping. Registration and matching of tensor elds has similar complications, since we must reorient tensors in a warped image before comparing it to the target. However, the orientational information in tensor elds potentially enhances the matching process. Homogeneous regions of scalar data are very di cult to match accurately, since a wide variety of transformations provide the same similarity score. The variety of transformations that can match homogeneous regions of tensor data, however, is much smaller since the orientations must match after warping. I will describe some early attempts to exploit orientation matching to improve image registration.
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