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US 10,893,197 B2Granted
Passive and active stereo vision 3D sensors with variable focal length lenses
AssigneeMicrosoft Technology Licensing, LLC
InventorsRaymond Kirk Price, Denis Demandolx, Michael Bleyer, Jian Zhao
Life of this patent
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Abstract
A stereoscopic 3D imaging system includes multiple imaging sensors with adjustable optics. The adjustable optics are variable to alter the FOV of each of the multiple imaging sensors to improve angular resolution of the imaging system.
Claims20
A method of three-dimensional imaging, the method including:
- receiving a trigger command;
- in response to the trigger command, changing a field of view of a first imaging sensor and a second imaging sensor by moving one or more movable imaging lenses positioned proximate an input of the imaging sensor and movable relative to a photoreceptor of the imaging sensor, wherein the one or more movable imaging lenses are configured to vary a field of view of each imaging sensor such that a first field of view of the first imaging sensor and a second field of view of the second imaging sensor are fixed relative to one another;
- detecting a reflected light with the first imaging sensor and the second imaging sensor;
- and
- measuring a depth value by comparing information from the first imaging sensor and the second imaging sensor to calculate a stereoscopic depth measurement from a disparity of a first image from the first imaging sensor and a second image from the second imaging sensor.
2 more elements
A method of three-dimensional imaging, the method including:
- receiving a trigger command;
- in response to the trigger command, changing a field of view of a first imaging sensor and a second imaging sensor by moving one or more movable imaging lenses positioned proximate an input of the imaging sensor and movable relative to a photoreceptor of the imaging sensor, wherein the one or more movable imaging lenses are configured to vary a field of view of each imaging sensor such that a first field of view of the first imaging sensor and a second field of view of the second imaging sensor are fixed relative to one another;
- attenuating a portion of a reflected light with a bandpass filter to create a filtered light;
- detecting the filtered light with the first imaging sensor and the second imaging sensor;
- and
- measuring a depth value by comparing information from the first imaging sensor and the second imaging sensor to calculate a stereoscopic depth measurement from a disparity of a first image from the first imaging sensor and a second image from the second imaging sensor.
3 more elements
A method of three-dimensional imaging, the method including:
- emitting an output light in a first wavelength range with an illuminator;
- receiving a trigger command;
- in response to the trigger command, changing a field of illumination of the illuminator, wherein changing the field of illumination of the illuminator includes moving one or more movable illuminator lenses positioned proximate an output of the illuminator and movable relative to the output of the illuminator, and the one or more movable illuminator lenses are configured to vary the field of illumination such that the field of illumination and the first field of view of the first imaging sensor and the second field of view of the second imaging sensor are fixed relative to one another;
- in response to the trigger command, changing a field of view of a first imaging sensor and a second imaging sensor by moving one or more movable imaging lenses positioned proximate an input of the imaging sensor and movable relative to a photoreceptor of the imaging sensor, wherein the one or more movable imaging lenses are configured to vary a field of view of each imaging sensor such that a first field of view of the first imaging sensor and a second field of view of the second imaging sensor are fixed relative to one another;
- attenuating a portion of a reflected light with a bandpass filter outside of the first wavelength range to create a filtered light;
- detecting the filtered light with the first imaging sensor and the second imaging sensor;
- and
- measuring a depth value by comparing information from the first imaging sensor and the second imaging sensor to calculate a stereoscopic depth measurement from a disparity of the first image from the first imaging sensor and the second image from the second imaging sensor.
5 more elements
Dependencies are inferred from the claim text.