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28 May 1999 Real-time image processing platform for the correction of x-ray-detector-related artifacts
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Abstract
Novel detector systems based on large area thin film electronics have the potential for an excellent image quality. However, the raw images derived from such detectors show various artifacts that have to be removed in real-time before the image is visualized to the user. Hence, superior flexibility in the applicable algorithms, sufficient system performance scalability, and a short processing delay are the key factors for the choice of a well suited processing platform due to the nature of the artifacts and due to the requirements of the medical applications. Further the very rapid progress in the available processing hardware has to be taken into account. A system comprising multiple nodes of a modern digital signal processor family can properly fulfill the key demands: high processing performance, strong data handling, full programmability and a processor family roadmap linked to state-of-the-art chip technology. Architecture principles, implementation aspects and first results derived from our new demonstrator system based on the modern SHARC DSP family are presented. The given first generation of the multiprocessor system corrects the basic artifacts at pixel rates of 50 Mpixel/s in 32-bit floating point arithmetic at a processing delay in the millisecond range.
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Norbert Jung, Thomas Gipp, Hans Jacobs, and Heiko Paul "Real-time image processing platform for the correction of x-ray-detector-related artifacts", Proc. SPIE 3659, Medical Imaging 1999: Physics of Medical Imaging, (28 May 1999); https://doi.org/10.1117/12.349483
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