Multispectral Filters
AssigneeAeroVironment, Inc.
InventorPhillip T Tokumaru
Life of this patent
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Abstract
A method and system including: an aerial vehicle including: a first camera comprising a first sensor having at least red, green, and blue color channels, where the blue color channel is sensitive to near-infrared (NIR) wavelengths; a first optical filter disposed in front of the first sensor, wherein the first optical filter is configured to block wavelengths below green, between red and NIR, and longer wavelength NIR; a processor having addressable memory in communication with the first camera, where the processor is configured to: capture at least one image of vegetation from the first camera; provide red, green, and NIR color channels from the captured image from the first camera; and determine at least one vegetative index based on the provided red, green, and NIR color channels.
Claims20
A system comprising:
- an aerial vehicle comprising:
- a first camera comprising a first sensor;
- a second camera comprising a second sensor;
- an incident light sensor disposed distal from the first camera and the second camera, wherein the incident light sensor is configured to capture incident light data;
- and
- a processor having addressable memory in communication with the first camera, the second camera, and the incident light sensor, wherein the processor is configured to:
- capture at least one image of vegetation from the first camera;
- capture at least one image of vegetation from the second camera;
- provide red, green, and near-infrared (NIR) color channels from the captured image from the first camera;
- determine at least one vegetative index based on the provided red, green, and NIR color channels;
- and
- calibrate the captured image of vegetation from the first camera and the captured image of vegetation from the second camera based on the determined at least one vegetative index and the captured incident light data.
A method comprising:
- capturing, by a processor having addressable memory in communication with a first camera, a second camera, and an incident light sensor, at least one image of vegetation from the first camera;
- capturing, by the processor, at least one image of vegetation from the second camera;
- providing, by the processor, red, green, and near-infrared (NIR) color channels from the captured image from the first camera;
- determining, by the processor, at least one vegetative index based on the provided red, green, and NIR color channels;
- and
- calibrating, by the processor, the captured image of vegetation from the first camera and the captured image of vegetation from the second camera based on the determined at least one vegetative index and the captured incident light data.
Dependencies are inferred from the claim text.