Method for creating a contiguous image using multiple X-ray imagers
AssigneeAgfa Healthcare NV
InventorPaul De Keyser
Life of this patent
Estimating the term…
Abstract
A radiographic image is obtained by combining at least two radiographic sub-images acquired by at least an upper and lower 2-dimensional radiation sensor having sensor pixels. The radiation sensitive area of the lower sensor is overlapped by the upper sensor. Overlap is preferably at least two pixel rows, but can also be limited to non-imaging parts of the upper sensor. The radiation sensors may comprise a radiation to light converting layer. Preferably the sensors are built using CMOS technology, exhibiting less radiation absorption outside the radiation sensitive area.
Claims14
Method for obtaining a radiographic image comprising the steps of:
- acquiring at least two radiographic sub-images during a single radiographic exposure from a radiation source, using at least an upper and a lower 2-dimensional radiation sensor relative to the direction of the radiation source, the sensors each having an radiation sensitive area comprising pixels,
- combining the acquired radiographic sub-images to obtain a combined radiographic image, characterised in that the two 2-dimensional radiation sensors overlap each other, whereby the radiation sensitive part of the lower sensor is overlapped by the upper radiation sensor in the direction of the radiation source.
Radiographic imaging assembly comprising:
- at least an upper and a lower 2-dimensional radiation sensor, for acquiring at least two radiographic sub-images during a single radiographic exposure, having overlapping radiation sensitive areas in the direction of the incident radiation,
- combining means for combining the acquired images to obtain a single combined radiographic image.
Dependencies are inferred from the claim text.