Article ; Online: Deep feature based cross-slide registration.
2022 Volume 104, Page(s) 102162
Abstract: Registration of multiple sections in a tissue block is an important pre-requisite task before any cross-slide image analysis. Non-rigid registration methods are capable of finding correspondence by locally transforming a moving image. These methods often ...
Abstract | Registration of multiple sections in a tissue block is an important pre-requisite task before any cross-slide image analysis. Non-rigid registration methods are capable of finding correspondence by locally transforming a moving image. These methods often rely on an initial guess to roughly align an image pair linearly and globally. This is essential to prevent convergence to a non-optimal minimum. We explore a deep feature based registration (DFBR) method which utilises data-driven descriptors to estimate the global transformation. A multi-stage strategy is adopted for improving the quality of registration. A visualisation tool is developed to view registered pairs of WSIs at different magnifications. With the help of this tool, one can apply a transformation on the fly without the need to generate a transformed moving WSI in a pyramidal form. We compare the performance on our dataset of data-driven descriptors with that of hand-crafted descriptors. Our approach can align the images with only small registration errors. The efficacy of our proposed method is evaluated for a subsequent non-rigid registration step. To this end, the first two steps of the ANHIR winner's framework are replaced with DFBR to register image pairs provided by the challenge. The modified framework produce comparable results to those of the challenge winning team. |
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MeSH term(s) | Image Processing, Computer-Assisted/methods |
Language | English |
Publishing date | 2022-12-19 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 639451-6 |
ISSN | 1879-0771 ; 0895-6111 |
ISSN (online) | 1879-0771 |
ISSN | 0895-6111 |
DOI | 10.1016/j.compmedimag.2022.102162 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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