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US 9,538,955 B2Granted
Method and apparatus for determining anatomic properties of a patient
AssigneeKoninklijke Philips N.V.
InventorsStijn De Waele, Adrienne Heinrich, Frederik Jan De Bruijn
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Abstract
A method is disclosed for determining anatomical properties of a patient, the patient having an oral cavity and a throat, comprising a) projecting at least one structured light pattern into the patient's oral cavity; b) detecting at least one reflected light pattern, each of the reflected light patterns emanating from reflection of a corresponding projected structured light pattern; c) analysing the at least one reflected structured light pattern in view of the at least one structured light pattern, thereby determining anatomical properties of the patient; and an associated imaging device.
Claims13
A method for determining anatomical properties of a patient, said patient having an oral cavity and a throat, comprising:
- a) projecting at least one structured light pattern into said patient's oral cavity;
- b) detecting at least one reflected light pattern, each of said reflected light patterns emanating from reflection of a corresponding projected structured light pattern;
- c) analysing said at least one reflected structured light pattern in view of said at least one structured light pattern, thereby determining anatomical properties of said patient;
- wherein each of said at least one structured light pattern comprises a set of predetermined parallel lines of projected light and is such that said set of predetermined parallel lines of projected light defines a structure comprising an area of higher projected light line density and an area lower projected light line density areas and/or comprising an area of larger projected light line thickness and an area of smaller projected light line thickness, the projections thereof corresponding with predetermined locations in said oral cavity and throat, further comprising polarising said structured light patterns before reflection, according to a first polarisation mode, and polarising said reflected light patterns before detection, according to a second polarisation mode, said first and second polarisation modes being opposite.
1 more element
An imaging device for determining anatomical properties of a patient, said patient having an oral cavity and a throat, comprising
- a. a means for projecting at least one structured light pattern into said patient's oral cavity;
- b. a means for detecting at least one reflected light pattern, each of said reflected light patterns emanating from reflection of a corresponding projected structured light pattern;
- c. a means for analysing said at least one reflected structured light pattern in view of said at least one structured light pattern, thereby determining anatomical properties of said patient;
- wherein each of said at least one structured light pattern comprises a set of predetermined parallel lines of projected light and is such that said set of predetermined parallel lines defines a structure comprising an area of higher projected light line density and an area of lower projected light line density and/or comprising an area of larger projected light line thickness and an area of projected light smaller line thickness, the projections thereof corresponding with predetermined locations in said oral cavity and throat;
- further comprising a first polarization means structured to polarize said at least one structured light pattern according to a first polarization mode before being projected into said patient's oral cavity, and a second polarization means structured to polarize said at least one reflected light pattern before being detected by said means for detecting according to a second polarization mode, wherein said first and second polarization modes are opposite.
2 more elements
An imaging device for determining anatomical properties of a patient, said patient having an oral cavity and a throat, comprising
- a. a projector for projecting at least one structured light pattern into said patient's oral cavity;
- b. an imaging device for detecting at least one reflected light pattern, each of said reflected light patterns emanating from reflection of a corresponding projected structured light pattern;
- c. a computer comprising software for analysing said at least one reflected structured light pattern in view of said at least one structured light pattern, thereby determining anatomical properties of said patient;
- wherein each of said at least one structured light pattern comprises a set of predetermined parallel lines of projected light and is such that said set of predetermined parallel lines defines a structure comprising an area of higher projected light line density and an area of lower projected light line density and/or comprising an area of larger projected light line thickness and an area of projected light smaller line thickness, the projections thereof corresponding with predetermined locations in said oral cavity and throat;
- further comprising a first polarization filter structured to polarize said at least one structured light pattern according to a first polarization mode before being projected into said patient's oral cavity, and a second polarization filter structured to polarize said at least one reflected light pattern before being detected by said imaging device according to a second polarization mode, wherein said first and second polarization modes are opposite.
2 more elements
An imaging device for determining anatomical properties of a patient, said patient having an oral cavity and a throat, comprising
- a. a projector for projecting at least one structured light pattern into said patient's oral cavity;
- b. an imaging device for detecting at least one reflected light pattern, each of said reflected light patterns emanating from reflection of a corresponding projected structured light pattern;
- c. a computer comprising software for analysing said at least one reflected structured light pattern in view of said at least one structured light pattern, thereby determining anatomical properties of said patient;
- wherein each of said at least one structured light pattern comprises a set of predetermined parallel lines of projected light and is such that said set of predetermined parallel lines defines a structure comprising an area of higher projected light line density and an area of lower projected light line density and/or comprising an area of larger projected light line thickness and an area of projected light smaller line thickness, the projections thereof corresponding with predetermined locations in said oral cavity and throat, wherein the analysing comprises detecting fractures in reflected lines of reflected light patterns, and associating said fractures with boundaries of anatomic features of said oral cavity.
1 more element
An imaging device for determining anatomical properties of a patient, said patient having an oral cavity and a throat, comprising
- a. a projector for projecting at least one structured light pattern into said patient's oral cavity;
- b. an imaging device for detecting at least one reflected light pattern, each of said reflected light patterns emanating from reflection of a corresponding projected structured light pattern;
- c. a computer comprising software for analysing said at least one reflected structured light pattern in view of said at least one structured light pattern, thereby determining anatomical properties of said patient;
- wherein each of said at least one structured light pattern comprises a set of predetermined parallel lines of projected light and is such that said set of predetermined parallel lines defines a structure comprising an area of higher projected light line density and an area of lower projected light line density and/or comprising an area of larger projected light line thickness and an area of projected light smaller line thickness, the projections thereof corresponding with predetermined locations in said oral cavity and throat, wherein the analysing comprises detecting deformation of reflected lines of reflected light patterns detected in (b), and associating said deformation with shape information of anatomic features of said oral cavity.
1 more element
Dependencies are inferred from the claim text.