Image acquisition
AssigneeKoninklijke Philips N.V.
InventorsRoger Steadman Booker, Roland Proksa
Life of this patent
Estimating the term…
Abstract
The present invention relates to a detection device for X-rays, an imaging system and a method for detecting electro-magnetic radiation using a detection device for X-rays, wherein an estimate of an incomplete measurement is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam or in an intensity of the electromagnetic radiation.
Claims11
A detection device for X-rays, comprising:
- at least one sensor configured to provide a current in response to electromagnetic radiation exposure during at least one image acquisition frame;
- at least one electronics board comprising at least one integrator providing a capacitor that is configured to discharge in response to the current provided by the sensor, wherein a discharge of the capacitor defines at least one cycle;
- a capacitor discharge analyzer configured to analyze the discharge of the capacitor and to provide a full-discharge signal when the capacitor is fully discharged in response to the current provided by the sensor;
- a counter configured to measure a cycle time, defined as a period between a start of a new cycle and a full discharge of the capacitor based on the full-discharge signal provided to the counter by the capacitor discharge analyzer;
- and
- a processor configured to:
- obtain the cycle time of the at least one cycle from the counter;
- store the obtained cycle time of the at least one cycle;
- compare the cycle time of the at least one cycle with one or more previously stored cycle times;
- and
- provide an estimate of an incomplete cycle acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam of the electromagnetic radiation or in an intensity of the electromagnetic radiation.
A method for detecting electromagnetic radiation comprising:
- sensing electromagnetic radiation exposure during at least one image acquisition frame;
- providing a cycle time of at least one cycle, wherein the cycle time is defined as the period to fully discharge a capacitor of at least one integrator of an electronics board of the detection device;
- storing the provided cycle time of the at least one cycle;
- and
- comparing the cycle time of the at least one cycle with one or more previously stored cycle times;
- wherein an estimate of an incomplete cycle is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam of the electromagnetic radiation or in an intensity of the electromagnetic radiation.
A non-transitory computer-readable medium having executable instructions stored thereon which, when executed by at least one processor, cause the at least one processor to perform a method for detecting electromagnetic radiation, the method comprising:
- sensing electromagnetic radiation exposure during at least one image acquisition frame;
- providing a cycle time of at least one cycle, wherein the cycle time is defined as the period to fully discharge a capacitor of at least one integrator of an electronics board of the detection device;
- storing the provided cycle time of the at least one cycle;
- and
- comparing the cycle time of the at least one cycle with one or more previously stored cycle times;
- wherein an estimate of an incomplete cycle is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam of the electromagnetic radiation or in an intensity of the electromagnetic radiation.
Dependencies are inferred from the claim text.