Imaging system using spatially separated spectral arrays
A system for imaging includes an array of optical sensors having a respective top surface and a respective bottom surface and a first plurality of sets of optical filters, each set of optical filters of the first plurality of sets of optical filters being associated with a respective set of optical sensors of the array. The system further includes a second plurality of sets of optical filters, each set of optical filters of the second plurality of sets of optical filters being associated with a respective set of optical sensors of the array, each optical filter of a set of optical filters of the second plurality of sets of optical filters configured to pass light of a respective wavelength range, where the second plurality of sets of optical filters are interspersed spatially across the top surface of the array of optical sensors. Finally, the system includes one or more processors adapted to sample an image of a scene based on an output from a first plurality of sets of optical sensors of the array and sample a received light spectrum for each set of optical sensors of a second plurality of sets of optical sensors of the array.
1 . An imaging system, the system comprising:
an array of optical sensors having a respective top surface and a respective bottom surface;
a first plurality of sets of optical filters, wherein each set of optical filters of the first plurality of sets of optical filters is associated with a respective set of optical sensors of the array;
a second plurality of sets of optical filters, wherein each set of optical filters of the second plurality of sets of optical filters is associated with a respective set of optical sensors of the array, wherein each optical filter of a set of optical filters of the second plurality of sets of optical filters is configured to pass light of a respective wavelength range, wherein the second plurality of sets of optical filters are interspersed spatially across the top surface of the array of optical sensors; and
one or more processors adapted to:
sample an image of a scene based on an output from a first plurality of sets of optical sensors of the array; and
sample a received light spectrum for each set of optical sensors of a second plurality of sets of optical sensors of the array.
2 . The imaging system of claim 1 , wherein the array of optical sensors is provisioned on an integrated circuit.
3 . The imaging system of claim 1 , wherein the first plurality of sets of optical filters are associated with the first plurality of optical sensors and the second plurality of sets of optical filters are associated with the second plurality of sets of optical sensors.
4 . The imaging system of claim 1 , wherein a set of optical filters of the first plurality of sets of optical filters are arranged in a Bayer pattern and the second plurality of sets of optical filters are arranged in a mosaic comprising equal to or more than 9 different wavelength ranges.
5 . The imaging system of claim 1 , wherein a set of optical filters of the second plurality of sets of optical filters includes optical filters selected from a group consisting of:
interference filters,
Fabry-Perot filters,
absorptive filters,
interference filters,
plasmonic filters, and
nanostructured filters.
6 . The imaging system of claim 1 , wherein a set of optical filters of the first plurality of sets of optical filters includes optical filters selected from a group consisting of:
absorptive RGB filters,
UV filters,
interference filters,
plasmonic filters,
nanostructured filters, and
polarizing filters.
7 . The imaging system of claim 1 , wherein the first plurality of sets of optical filters includes one or more sets of optical filters selected from a group consisting of:
red, green, blue (RGB) filters,
red, green, green, blue (RGGB) filters,
absorptive RGB filters, and
red, green, green, blue, blue (RGGBBB) filters.
8 . The imaging system of claim 1 , wherein the optical sensors are selected from a group consisting of:
three dimensional (3D) sensors,
ultraviolet sensors,
organic thin film sensors,
organic photoconductive file (OPF) sensors,
panchromatic sensors,
CMOS sensors,
short-wave infrared (SWIR) sensitive sensors, and
infrared sensors.
9 . The imaging system of claim 1 , wherein a set of optical sensors associated with a set of optical filters of the second plurality of sets of optical filters is adapted to sense a localized bandpass response with multiple wavelength channels.
10 . The imaging system of claim 1 , wherein the array of optical sensors is formed across a surface, wherein the surface is divided into a plurality of equal sectors X, wherein the second plurality of sets of optical filters are interspersed spatially across the surface so that each sector X includes a set of optical filters of the second plurality of sets of optical filters.
11 . The imaging system of claim 1 , further comprising:
one or more optical elements, wherein the array of optical sensors is formed across a surface, wherein the surface is divided into a plurality of sectors, wherein the second plurality of sets of optical filters are interspersed spatially across the surface based on a predetermined pattern, wherein the predetermined pattern is based on the optical elements.
12 . A method comprises:
sampling, by an imaging system, an output from a first subset of optical sensors of an optical sensor array to generate an image of a scene, wherein a subset of optical sensors of the first subset of optical sensors is associated with a first set of optical filters;
sampling, by the imaging system, a second subset of optical sensors of the optical sensor array to generate a plurality of received light spectra, wherein a subset of optical sensors of the second subset of optical sensors is associated with a second set of optical filters, wherein each optical filter of a second set of optical filters is configured to pass light of a respective wavelength range, wherein each set of optical filters of the second set of optical filters is interspersed spatially across the optical sensor array; and
based on the plurality of received light spectra, modifying the image.
13 . The method of claim 12 , wherein the optical sensor array is provisioned on an integrated circuit.
14 . The method of claim 12 , wherein the optical filters in the first set of optical filters are arranged in a Bayer pattern and the second plurality of sets of optical filters are arranged in a mosaic comprising equal to or more than 9 different wavelength ranges.
15 . The method of claim 12 , wherein a set of optical filters of the second set of optical filters includes one or more optical filters selected from a group consisting of:
interference filters,
Fabry-Perot filters,
absorptive filters,
interference filters,
plasmonic filters, and
nanostructured filters.
16 . The method of claim 12 , wherein a set of optical filters of the first set of optical filters includes optical filters selected from a group consisting of:
absorptive RGB filters,
UV filters,
interference filters,
plasmonic filters,
nanostructured filters, and
polarizing filters.
17 . The method of claim 12 , wherein a set of optical filters of the first set of optical filters includes one or more sets of optical filters selected from a group consisting of:
red, green, blue (RGB) filters,
red, green, green, blue (RGGB) filters,
absorptive RGB filters, and
red, green, green, blue, blue (RGGBBB) filters.
18 . The method of claim 12 , wherein one or more optical sensors of the optical sensor array are selected from a group consisting of:
three dimensional (3D) sensors,
ultraviolet sensors,
organic thin film sensors,
organic photoconductive file (OPF) sensors,
panchromatic sensors,
CMOS sensors,
short-wave infrared (SWIR) sensitive sensors, and
infrared sensors.
19 . The method of claim 12 , wherein each set of optical sensors associated with a set of optical filters of the second set of optical filters is adapted to sense a localized bandpass response with multiple wavelength channels.
20 . The method of claim 12 , wherein the imaging system includes one or more optical elements, the optical sensor array having a respective top surface and a respective bottom surface, wherein the top surface is divided into a plurality of sectors, wherein the second plurality of sets of optical filters are interspersed spatially across the surface based on a predetermined pattern, wherein the modifying the image is further based on the received light spectra associated with the predetermined pattern.