Patent ID: 11885953
Assignee: ILLUMINA, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. An apparatus comprising:
a first optical assembly to emit structured illumination toward a target, the first optical assembly including:
a light emitting assembly,
a first phase mask to impart a first pattern to light emitted by the light emitting assembly,
a second phase mask to impart a second pattern to light emitted by the light emitting assembly, and
a phase adjustment assembly to adjust a phase of light structured by the first phase mask and the second phase mask;

a second optical assembly, the second optical assembly including an image sensor to capture images of the target as illuminated by the first optical assembly;
a targeting device including a preformed optical pattern, the targeting device to enable the first optical assembly to emit structured illumination toward the preformed optical pattern, the targeting device to enable the image sensor to capture images of the preformed optical pattern as illuminated by the first optical assembly; and
a processor, the processor to perform the following:
receive images captured using the second optical assembly,
isolate a first image set from the plurality of images,
measure a full width at half maximum (FWHM) value corresponding to each image in the first image set,
perform parameter estimation based at least in part on the measured FWHM value,
identify in-focus parameters based at least in part on the performed parameter estimation corresponding to the first image set, and
perform a modulation calculation based at least in part on the identified in-focus parameters corresponding to the first image set.