Spatio-temporal defect pixel interpolation using 3-D frequency selective extrapolation

Conference contribution
(Conference Contribution)

Publication Details

Author(s): Meisinger K, Aach T, Kaup A
Publication year: 2007
Volume: 4
Pages range: 149-152
ISBN: 9781424414376


Flat panel X-ray detectors allow the immediate availability of the acquired images for display. However, they provide images with defective areas amongst others due to manufacturing problems. In this contribution, we present a frequency selective extrapolation method in order to restore these defects by extending the surrounding signal into the defective area. In case of static radiographs, the spatial surrounding is evaluated by a 2-D approach. Defects in sequences acquired by cine-angiography or fluoroscopy are processed by 3-D extrapolation. The defects are replaced by extrapolating the signal from the spatial and at the same time temporal surrounding, taking previous and subsequent frames into account. Hence, inherent motion compensation is accomplished. The application of the spatial and where applicable spatio-temporal extrapolation approach allows to restore smooth areas, edges, patterns as well as noise. The ability to restore noise is especially important for medical images because it leads to a natural appearance of the concealed defective areas. ©2007 IEEE.

FAU Authors / FAU Editors

Kaup, André Prof. Dr.-Ing.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung

How to cite

Meisinger, K., Aach, T., & Kaup, A. (2007). Spatio-temporal defect pixel interpolation using 3-D frequency selective extrapolation. (pp. 149-152). San Antonio, Texas, US.

Meisinger, Katrin, T. Aach, and Andre Kaup. "Spatio-temporal defect pixel interpolation using 3-D frequency selective extrapolation." Proceedings of the 14th IEEE International Conference on Image Processing, ICIP 2007, San Antonio, Texas 2007. 149-152.


Last updated on 2018-20-12 at 13:50