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Iterative Reconstruction Software. X-AID

Unsurpassed Image quality.
Higher sample throughput.
Maximum of flexibility.

X-AID - Software for
statistical iterative CT reconstruction

X-AID is a reconstruction software providing a statistical iterative reconstruction module optimized to meet the complex challenges of industrial, geological, bio-medical and dental CT imaging. Advanced processing tools, a powerful conventional FDK reconstruction and the easy-to-use module for statistical iterative reconstruction ensure that you obtain the best image quality even under imperfect imaging conditions.

Your advantages using X-AID

Superior image quality

Statistical iterative reconstruction provides superior image quality for low photon statistics (low dose imaging) and incomplete projection data (undersampling, limited angle).

Increase of scanner throughput

In many cases, the scanner throughput is limited due to the low source power. Statistical iterative reconstruction makes it possible to increase scanner throughput while preserving the image quality.

Reduction of artefacts

Statistical iterative reconstruction is able to reduce various kinds of reconstruction artefacts like beam-starvation artefacts and undersampling artefacts.

Very fast reconstructions

X-AID ensures shortest reconstruction times for large data sizes. Check the technical details for further information.

Easy to use

X-AID is intuitve and easy-to-use. You do not require profound knowledge about the complex algorithms to obtain optimal reconstruction results.

Independent of CT hardware

X-AID is independent from your CT hardware. It can be integrated to existing workflows, either by using our GUI solution or by implementing it into the customer software.

X-AID - Toolbox and reconstruction modules

X-AID already supports data import routines from various CT systems and additionally has a raw data import routine. If you have a CT system or setup, which is not yet supported, we will customize that for you. Contact us if you would like to know more.
An exact centershift correction is crucial for the quality of the reconstructed volume. Already a small deviation from the correct value leads to clearly noticeable unsharpness of the edges. We have developed a unique centershift correction method which is not only accurate but also very robust against noise and artefacts in the images.
image In particular during long measurements sample- or stage-drifts can occur due to instabilities or not perfectly mounted samples. These drifts can not be corrected with a center-shift correction and lead to unusable reconstructions. In many cases, a new measurement would be required which takes time, costs money and sometimes is even not possible. Therefore X-AID is equipped with a poweful drift-correction module which compensates for movements that happen during the measurements.
image Conventional CT scanners are equipped with polychromatic X-ray sources that emit X-ray photons within a broad energy range. Conventional reconstruction techniques, like the FDK, however do not model the polychromaticity but assume a monochromatic X-ray source which emits photons only at a specific energy.

In the final reconstruction, this effect leads to strong beam-hardening cupping artefacts and metal artefacts like streaks behind high-absorbing materials. X-AID is equipped with a beam-hardening correction module that is able to correct these kinds of artefacts.
Pixel inconsistencies of the X-ray detector lead to ring-artefacts which degrade the quality of the reconstructed volume and often complicate the correct analysis of the data.

X-AID is equipped with a ring-correction module to correct for ring-artefacts.
X-AID comes with a very fast FDK reconstruction module to perform conventional reconstructions if data quality is good enough.

Performance benchmarks 2 GPU Titan X 4 GPU Titan X
1601 x 1024 x 1024 12 sec. 10 sec.
3217 x 2048 x 2048 170 sec. 48 sec.
image In industrial CT fast measurements are required to reduce scan costs or to quickly obtain information about production quality of the material. Fast CT measurements can be achieved either by applying a short integration time, which results in a high noise level in the projections and further to a loss of image details in the reconstructed volume or by taking a low number of projection images, which results in strong undersampling artefacts in the reconstructed volume.

Low-dose measurements for example in dental CT and bio-medical CT also result in a high noise level and the loss of image details.

X-AID is equipped with a model-based statistical iterative image reconstruction (SIR) modul which is capable to strongly reduce the noise in the reconstructed volume and to correct for undersampling artefacts while preserving the image details.

Performance benchmarks 2 GPU Titan X 4 GPU Titan X
1601 x 1024 x 1024 24 min. 12 min.
3217 x 2048 x 2048 35 min.
X-AID comes with a variety of edge-preserving and non-edge preserving image filters to reduce the noise in the reconstructed volume.
X-AID is equipped with a data slizing tool which allows you to view your data directly within the X-AID GUI. Line profiles can be displayed to compare edge-sharpness and to measure distances.


X-AID improves reconstruction results, no matter which type or brand of CT scanner hardware you have. It is based on Python & C++ and can be implemented into existing workflows, either by customizing the standard graphical-user-interface or by integrating the reconstruction modules into your software solutions.