Method and system for obtaining real-time color images using defocus
AssigneesNorthwestern University, Purdue Research Foundation
InventorsQi Guo, Mehmet Kerem Aydin, Yi Chun Hung, Emma Bertat Alexander
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Abstract
A system for obtaining color images includes a grayscale imaging device, a first lens positioned at a first distance from the grayscale imaging device, and a second lens positioned at a second distance from the grayscale imaging device, where the second distance is greater than the first distance. The system also includes a processor operatively coupled to the grayscale imaging device and configured to receive image data from the grayscale imaging device. The processor uses a compressed sensing framework to process the image data and the processor generates a hyperspectral image based on the processed image data.
Claims20
A system for obtaining color images, the system comprising:
- a grayscale imaging device;
- a first lens positioned at a first distance from the grayscale imaging device;
- a second lens positioned at a second distance from the grayscale imaging device, wherein the second distance is greater than the first distance;
- and
- a processor operatively coupled to the grayscale imaging device, wherein the processor is configured to:
- receive image data from the grayscale imaging device;
- use a compressed sensing framework to process the image data;
- and
- generate a hyperspectral image based on the processed image data.
A method of obtaining color images, the method comprising:
- capturing image data by a grayscale imaging device of an optical system, wherein the optical system includes a first lens positioned at a first distance from the grayscale imaging device and a second lens positioned at a second distance from the grayscale imaging device, wherein the second distance is greater than the first distance;
- processing, by a processor operatively coupled to the grayscale imaging device, the image data using a compressed sensing framework;
- and
- generating, by the processor, a hyperspectral image based on the processed image data.
Dependencies are inferred from the claim text.