Single view feature-less depth and texture calibration
AssigneeIntel Corporation
InventorsAlex Bronstein, Aviad Zabatani, Ron Kimmel, Michael Bronstein, Erez Sperling, Vitaly Surazhsky
Life of this patent
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Abstract
A method and apparatus for performing a single view depth and texture calibration are described. In one embodiment, the apparatus comprises a calibration unit operable to perform a single view calibration process using a captured single view a target having a plurality of plane geometries having detectable features and being at a single orientation and to generate calibration parameters to calibrate one or more of the projector and multiple cameras using the single view of the target.
Claims24
An apparatus comprising:
- a projector configured to project a sequence of light patterns on an object;
- a first camera configured to capture a sequence of images of the object illuminated with the projected light patterns;
- a second camera configured to capture a second image of the object illuminated with the projected light patterns and configured to capture a texture image of the object in the second image;
- a calibration unit operable to perform a single view calibration process using a captured single view of a target having a known geometry with known radiometric properties and being at a single orientation and to generate one or more calibration parameters based on alignment of a captured image to a corresponding synthesized image to calibrate one or more of the projector and first and second cameras in an active coded light triangulation system using the single view of the target;
- and
- a processing unit to receive the sequence of images and reconstruct depth using triangulation in response to the generated calibration parameters.
A method comprising:
- projecting, using a projector, a sequence of light patterns on an object;
- capturing, using a first camera, a single view of a target at a single orientation, the target having a known geometry with known radiometric properties;
- performing a single view calibration process using the captured single view to generate one or more calibration parameters based on alignment of a captured image to a corresponding synthesized image to calibrate one or more of the projector and first camera in an active coded light triangulation system using the single view of the target;
- and
- receiving the sequence of images and reconstructing depth using triangulation in response to the generated calibration parameters.
An article of manufacture having one or more non-transitory computer readable storage media storing instructions which when executed by a system to perform a method comprising:
- projecting, using a projector, a sequence of light patterns on an object;
- capturing, using a camera, a single view of a target at a single orientation, the target having a known geometry with known radiometric properties;
- performing a single view calibration process using the captured single view to generate one or more calibration parameters based on alignment of a captured image to a corresponding synthesized image to calibrate one or more of the projector and camera in an active coded light triangulation system using the single view of the target;
- and
- receiving the sequence of images and reconstructing depth using triangulation in response to the generated calibration parameters.
Dependencies are inferred from the claim text.