Trajectory detection devices and methods
AssigneeOwl Autonomous Imaging, Inc.
InventorEugene M. PETILLI
Life of this patent
Estimating the term…
Abstract
A trajectory detection device includes a lens configured to receive an image of a field of view. An array of microlenses is configured to create an array of light field images based on the image. A detector array includes a plurality of photon sensitive photodetectors. The detector array is configured to generate output signals from each photodetector based on the array of light field images. A controller is configured to integrate the output signals over an integration period. At least a portion of the output signals are modulated at a modulating frequency having a modulating frequency cycle time that is smaller than the integration period. A three-dimensional image of motion in the field of view is generated based on the integration of the modulated output signals.
Claims20
A trajectory detection device comprising:
- a lens configured to receive an image of a field of view of the lens;
- an array of microlenses optically coupled to the lens and configured to create an array of light field images based on the image;
- a detector array comprising a plurality of photon sensitive photodetectors, the detector array being optically coupled to the array of microlenses and configured to generate output signals from each photodetector based on the array of light field images;
- and
- a controller communicatively coupled to the detector array and configured to:
- receive the output signals from the detector array;
- integrate the output signals over an integration period, wherein at least a portion of the output signals are modulated at a modulating frequency having a modulating frequency cycle time that is smaller than the integration period;
- and
- generate a three-dimensional image of motion within the field of view based on the integration of the modulated output signals.
A method of determining a three-dimensional trajectory of motion, the method comprising:
- receiving, through a lens, an image of a field of view of the lens;
- creating an array of light field images based on the image, from an array of microlenses optically coupled to the lens;
- generating output signals, from photodetectors of a detector array optically coupled to the array of microlenses, based on the array of light field images;
- integrating, through a controller coupled to the detector array, the output signals over an integration period wherein at least a portion of the output signals are modulated at a modulating frequency having a modulating frequency cycle time that is smaller than the integration period;
- and
- generating an image of motion in the field of view based on the integration of the modulated output signals, wherein the image displays a three dimensional trajectory of the motion.
Dependencies are inferred from the claim text.