Illinois Tool Works Inc.

Julien Noel

Joseph Schlecht

Eric Ferley

Yuxin Wang

Roland Le Floc'h

Joshua A Sharpe

An imaging system generates a first radiograph based on a first pattern of radiation detected by a Linear Diode Array (LDA) radiation detector positioned to detect a radiation beam emitted by a radiation generator. The LDA radiation detector comprises a plurality of modules. Each respective module of the plurality of modules comprises a respective plurality of photodiodes corresponding to pixels. Furthermore, the imaging system may determine, based on the first radiograph, a size of a gap between two of the modules of the LDA radiation detector. After determining the size of the gap, the imaging system may generate a second radiograph based on a second pattern of radiation detected by the LDA radiation detector. The imaging system may generate a third radiograph by modifying, based on the size of the gap, the second radiograph to compensate for the gap.

Gap resolution for linear detector array

An x-ray imaging system may include an x-ray generator, one or more radiation detectors, a rotary stage, a linear translation stage, a motion control system, and a data acquisition system. The rotary stage has an axis of rotation arranged perpendicular to an axis of an x-ray beam emitted by the x-ray generator. The linear translation stage may be configured to move the rotary stage linearly along an axis aligned with the axis of rotation of the rotary stage. The motion control system may synchronize rotational motion of the rotary stage and linear motion of the linear translation stage. The data acquisition system may comprise processors configured to receive user input parameters. The processors may configure, based at least in part on the user input parameters, the x-ray imaging system to acquire radiographs. The processors may generate a three-dimensional image from the radiographs.

Helical computed tomography

An x-ray imaging system (), such as a X-ray computerized tomographic system, may acquire a series of radiographs at different detector positions along a first translation axis or a second translation axis parallel to orientation directions of detector pixels of a radiation detector (). In a first embodiment, the different detector positions may be separated by a distance less than a linear size of the radiation detector () along the first translation axis or the second translation axis, respectively. The radiographs may be assembled into a radiograph larger than each radiograph in the series of radiographs, resulting in image stitching. In a second embodiment, the different detector positions may be separated by a distance less than a pixel size of the radiation detector (), also referred as sub-pixel shifting of the detector. The radiographs may be assembled to form a radiograph with a higher resolution than the acquired radiographs, resulting in superresolution.

Growing community of inventors

Puteaux, France

Julien Noel