Synthetic imaging systems using algorithms or mathematical transformations simulate optical effects of optical components
AssigneeArizona Board of Regents on Behalf of the University of Arizona
InventorsLuca Caucci, Harrison Barrett
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Abstract
The present invention provides methods and systems for manipulating radiance data obtained from a radiance sensor that includes a lenslet array and a photodetector array, where the manipulation of the radiance data uses one or more algorithms or mathematical transformations applied by a software program. Manipulating the measured radiance data computationally produces the same optical effects of a desired optical system without having to insert the optical system into the optical path of the electromagnetic radiation. The manipulated radiance data is then used to generate an image.
Claims13
A method for generating an image from electromagnetic radiation transmitted through a lenslet array and detected by a photodetector array in a detector plane, comprising:
- measuring radiance data of the electromagnetic radiation in the detector plane from a plurality of electrical signals, each of the plurality of electrical signals having been generated by a respective one of a plurality of photodetectors of the photodetector array in response to a respective one of a plurality of spatial regions of the electromagnetic radiation;
- selecting a desired synthetic pupil mask, where the synthetic pupil mask computationally simulates optical effects of one or more optical components on the electromagnetic radiation;
- manipulating the measured radiance data to simulate the optical effects corresponding to the selected synthetic pupil mask, said manipulation comprising applying one or more algorithms or mathematical transformations to the measured radiance data;
- and
- generating an image from the manipulated radiance data.
A system for generating an image of electromagnetic radiation comprising:
- a) a lenslet array;
- b) a photodetector array located in a detector plane, and including a plurality of photodetectors configured to generate a respective one of a plurality of electrical signals output in response to electromagnetic radiation transmitted by the lenslet array and incident on the photodetector array;
- c) memory configured to store non-transitory computer-readable instructions and the plurality of electrical signals;
- d) a microprocessor configured to execute the instructions to:
- measure radiance data of the electromagnetic radiation in the detector plane from the plurality of electrical signals;
- apply one or more algorithms or mathematical transformations to the measured radiance data, where said one or more algorithms or mathematical transformations simulates optical effects of one or more optical components on the electromagnetic radiation;
- and
- generate an image from the manipulated radiance data.
Dependencies are inferred from the claim text.