Conference contribution


Dynamic Pixel Binning allows Spatial and Angular Resolution Tradeoffs to improve Image Quality in X-Ray C-Arm CT


Publication Details
Author(s): Steg A, Reichenbach M, Söll C, Shi L, Maier A, Rieß C
Publication year: 2016
Pages range: 577-580
Event: IEEE International Symposium on Biomedical Imaging (ISBI)
Event location: Prague

Abstract

When designing an acquisition protocol for a C-arm CT acquisition, a tradeoff has to be made between scan time and the amount of acquired data. If the scan is increased, data of spatially and angular higher resolution can be acquired. If the scan time is fixed, one has to tradeoff spatial and angular resolution, which may either lead to oversmoothing or artifacts from angular undersampling. In this work, we investigate the viability of smart cameras for pushing the boundary for this bottleneck considerably further. The detector pixels are enhanced by processing units that are able to perform a limited amount of local operations. This allows an online, dynamical adaptation of the pixel binning, depending on whether a local neighborhood is smooth or not. We demonstrate on phantom data that this approach allows to save about 75\% of the data, obtaining a reconstruction quality comparable to 1 x 1 binning at a data rate comparable to 2 x 2 pixel binning.



How to cite
APA: Steg, A., Reichenbach, M., Söll, C., Shi, L., Maier, A., & Rieß, C. (2016). Dynamic Pixel Binning allows Spatial and Angular Resolution Tradeoffs to improve Image Quality in X-Ray C-Arm CT. (pp. 577-580). Prague.

MLA: Steg, Alexander, et al. "Dynamic Pixel Binning allows Spatial and Angular Resolution Tradeoffs to improve Image Quality in X-Ray C-Arm CT." Proceedings of the IEEE International Symposium on Biomedical Imaging (ISBI), Prague 2016. 577-580.

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