Spectral imaging
AssigneeKoninklijke Philips Electronics N.V.
InventorEwald Roessl
Life of this patent
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Abstract
A spectral processor (118) includes a first processing channel (120) that generates a first spectral signal derived from a detector signal, wherein the first spectral signal includes first spectral information about the detector signal, and a second processing channel (120) that generates a second spectral signal derived from the detector signal, wherein the second spectral signal includes second spectral information about the detector signal, wherein the first and second spectral signals are used to spectrally resolve the detector signal, and wherein the detector signal is indicative of detected polychromatic radiation.
Claims24
A spectral processor that processes a detector signal indicative of polychromatic radiation detected by an imaging system, comprising:
- a first processing channel that generates a first spectral signal derived from the detector signal, wherein the first spectral signal includes first spectral information about the detector signal;
- and
- a second processing channel that generates a second spectral signal derived from the same detector signal, wherein the second spectral signal includes second spectral information about the detector signal, wherein the first and second spectral signals are used to spectrally resolve the detector signal.
A method, comprising:
- detecting polychromatic radiation traversing an examination region of an imaging system;
- generating a signal indicative of the energy distribution of the detected radiation;
- determining first spectral information about the energy distribution of the radiation from the detector signal;
- determining second spectral information about the energy distribution of the radiation from the detector signal, wherein the first and second information are different;
- and
- spectrally resolving the detector signal based on the first and second spectral information.
An imaging system, comprising:
- a radiation source that emits polychromatic radiation that traverses an examination region:
- a detector array that detects the radiation and generates a signal indicative thereof;
- and
- a spectral processor processing the detector signal, the spectral processor, including:
- a first processing channel that generates a first spectral signal derived from the detector signal, wherein the first spectral signal includes first spectral information about the detector signal;
- and
- a second processing channel that generates a second spectral signal derived from the detector signal, wherein the second spectral signal includes second spectral information about the detector signal,
- wherein the first and second spectral signals are used to spectrally resolve the detector signal.
Dependencies are inferred from the claim text.