Digitizer for an optical coherence tomography imager
AssigneeAcqiris
InventorsDaniel Aebischer, Pierre-François Maistre, Tobias Blaser
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Abstract
A digitizer and processor device for a swept-source optical coherence tomography (SS-OCT) imaging system, comprising: an input configured to receive an OCT signal; a control input configured to receive a k-clock signal; a combiner unit (130) receiving the OCT signal and the k-clock signal configured to output a composite signal; a digitizing unit (60) arranged to convert the composite signal into a digital composite signal (69); a data processing unit (70) arranged to determine a profile of optical density in a sample that generated the OCT signal based on the digital composite signal (69).
Claims9
A digitizer and processor device for a swept-source optical coherence tomography imaging system, comprising:
- an input configured to receive an OCT analogue signal;
- a control input configured to receive a k-clock analogue signal;
- a combiner unit receiving the OCT analogue signal and the k-clock analogue signal, configured to output a composite analogue signal;
- a digitizing unit arranged to convert the composite analogue signal into a digital composite signal;
- a data processing unit arranged to determine a tomographic profile of the sample that generated the OCT signal based on the digital composite signal,
- wherein the data processing unit comprises one or more digital filters arranged to extract from the digital composite signal a digital OCT signal representing the contribution of the OCT signal to the digital composite signal, and a digital k-clock signal representin the contribution of the k-clock signal to the digital composite signal.
Dependencies are inferred from the claim text.