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US 2019/0293797 A1Published application
3d imaging system and method of 3d imaging
AssigneeTRW Inc.
InventorsAdam John Heenan, Martin Thompson, Roger Hazelden, Rob Pinnock
Life of this patent
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Abstract
A 3D imaging system includes a light source arranged to illuminate a scene with at least one optical pulse including light of at least two discrete wavelengths; an optical detector including an array of detection elements; and an optical modulator interposed in the optical path between the scene and the optical detector, the modulator being arranged to differentially amplitude modulate the two wavelengths in the reflected portion of the optical pulse as a function of time.
Claims20
A 3D imaging system comprising:
- a light source arranged to illuminate a scene with at least one optical pulse comprising light of at least two discrete wavelengths;
- an optical detector comprising an array of detection elements;
- and
- an optical modulator interposed in the optical path between the scene and the optical detector, the modulator being arranged to differentially amplitude modulate the two wavelengths in the reflected portion of the optical pulse as a function of time.
1 more element
A method of 3D imaging objects in a scene comprising the steps of:
- illuminating the scene with at least one pulse of light;
- differentially amplitude modulating at least two wavelengths in a portion of the pulse that is reflected or scattered from objects in the scene and focusing the modulated light onto at least one detector to form an image of the scene;
- and
- processing the at least one image to determine the range of objects in the scene.
1 more element
Dependencies are inferred from the claim text.