Project Details
Projekt
Sinogram Fusion for Multispectral CT Measurements (SOUL-CT)
Subject Area
Measurement Systems
Image and Language Processing, Computer Graphics and Visualisation, Human Computer Interaction, Ubiquitous and Wearable Computing
Production Systems, Operations Management, Quality Management and Factory Planning
Image and Language Processing, Computer Graphics and Visualisation, Human Computer Interaction, Ubiquitous and Wearable Computing
Production Systems, Operations Management, Quality Management and Factory Planning
Term
since 2025
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 564608409
The aim of the proposal is to significantly reduce the measurement uncertainty of multispectral CT measurements (MSP) by developing a method for combining complementary information in the radon space. By interpreting the sinograms, the distribution of the individual materials as well as the areas affected by artifacts are detected and exploited for fusion. The interpretation of the sinograms allows a weighting or a pre-selection of areas which shall be corrected, whereas the MSP methods known to the applicant use identical correction approaches on all voxels. Compared to a conventional CT measurement of a multi-material component (performed with a single generator energy), the fusion aims at a significant reduction of artifacts. The fusion in the radon space avoids losses due to the reconstruction of the individual volumes and provides a reduction of the measurement uncertainty compared to both conventional and MSP measurements which use a post-reconstruction fusion approach. Further, by fusing before reconstructing the volume model, a notable reduction of the data necessary for a multispectral CT measurement is achieved.
DFG Programme
Research Grants
