Multimodal registration of nmr-volumes and histological cross-sections of barley grains on the cell broadband engine processor

Rainer Pielot, Udo Seiffert, Bertram Manz, Diana Weier, Frank Volke, Falk Schreiber, Winfriede Weschke

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Representation of developmental gradients in biological structures requires visualization of storage compounds, metabolites or mRNA hybridization patterns in a 3D morphological framework. NMR imaging can generate such a 3D framework by non-invasive scanning of living structures. Histology provides the distribution of developmental markers as 2D cross-sections. Multimodal alignment tries to put such different image modalities into correspondence. Here we compare different methods for rigid registration of 3D NMR datasets and 2D cross-sections of developing barley grains. As metrics for similarity measurements mutual information, cross correlation and overlap index are used. In addition, different filters are applied to the images before the alignment. The algorithms are parallelized, partially vectorized and implemented on the Cell Broadband Engine processor in a Playstation® 3. Evaluation is done by a comparison of the results to a manually defined gold standard of a NMR dataset and a corresponding 2D cross-section of the same grain. The results show, that best alignment is achieved by application of mutual information on sobel-filtered images and, compared to the implementation on a standard single-core CPU, the computation is accelerated by a factor up to 1.95.

Original languageEnglish
Title of host publicationVISAPP 2009 - Proceedings of the 4th International Conference on Computer Vision Theory and Applications
PublisherScitepress
Pages241-244
Number of pages4
ISBN (Print)9789898111692
Publication statusPublished - 2009
Externally publishedYes
Event4th International Conference on Computer Vision Theory and Applications, VISAPP 2009 - Lisboa, Portugal
Duration: 5 Feb 20098 Feb 2009

Publication series

NameVISAPP 2009 - Proceedings of the 4th International Conference on Computer Vision Theory and Applications
Volume1

Conference

Conference4th International Conference on Computer Vision Theory and Applications, VISAPP 2009
CountryPortugal
CityLisboa
Period5/02/098/02/09

Keywords

  • Alignment
  • Multimodal
  • Nmr
  • Registration

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