Infrared resolution and contrast enhancement with fusion
First Claim
Patent Images
1. A method, comprising:
- receiving, by a processor, a visual image of a scene captured using a visual image sensor;
receiving, by the processor, an infrared (IR) image of the scene captured using an IR image sensor;
for a portion of said IR image;
extracting, by the processor from a corresponding portion of the visual image, pixel data representing high spatial frequency content, wherein the high spatial content includes contours and/or edges that show low or no contrast in the IR image; and
combining, by the processor, luminance information of said extracted pixel data from said portion of the visual image with luminance information of corresponding pixels in said portion of the IR image to augment the IR image with the contours and/or edges from the visual image, wherein the augmented IR image comprises temperature information that is unaltered by the combining.
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Abstract
The present disclosure relates to combination of images. A method according to an embodiment comprises: receiving a visual image and an infrared (IR) image of a scene and for a portion of said IR image extracting high spatial frequency content from a corresponding portion of said visual image. The method according to the embodiment further comprises combining said extracted high spatial frequency content from said portion of the visual image with said portion of the IR image, to generate a combined image, wherein the contrast and/or resolution in the portion of the IR image is increased compared to the contrast and/or resolution of said received IR image.
19 Citations
32 Claims
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1. A method, comprising:
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receiving, by a processor, a visual image of a scene captured using a visual image sensor; receiving, by the processor, an infrared (IR) image of the scene captured using an IR image sensor; for a portion of said IR image; extracting, by the processor from a corresponding portion of the visual image, pixel data representing high spatial frequency content, wherein the high spatial content includes contours and/or edges that show low or no contrast in the IR image; and combining, by the processor, luminance information of said extracted pixel data from said portion of the visual image with luminance information of corresponding pixels in said portion of the IR image to augment the IR image with the contours and/or edges from the visual image, wherein the augmented IR image comprises temperature information that is unaltered by the combining. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 32)
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29. A non-transitory computer-readable medium storing a computer program for combining an IR image with a visual image, the computer program comprising computer program code portions devised to control a data processing system to perform operations comprising:
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receiving a visual image of a scene captured using a visual image sensor; receiving an infrared (IR) image of the scene captured using an IR image sensor; for a portion of said IR image; extracting, from a corresponding portion of the visual image, pixel data representing high spatial frequency content, wherein the high spatial frequency content includes contours and/or edges that show low or no contrasts in the IR image; and combining luminance information of said extracted pixel data from said portion of the visual image with luminance information of corresponding pixels in said portion of the IR image to augment the IR image with the contours and/or edges from the visual image, wherein the augmented IR image comprises temperature information that is unaltered by the combining. - View Dependent Claims (30)
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31. An imaging device, comprising:
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a visual image sensor for capturing a visual image; an IR image sensor for capturing an IR image; and a processing unit adapted to; for a portion of said IR image; extract, from a corresponding portion of the visual image, pixel data representing high spatial frequency content from a corresponding portion of said visual image, wherein the high spatial frequency content includes contours and/or edges that show low or no contrast in the IR image; and combine luminance information of said extracted pixel data from said portion of the visual image with luminance information of corresponding pixels in said portion of the IR image to augment the IR image with the contours and/or edges from the visual image, wherein the augmented IR image comprises temperature information that is unaltered by the combining.
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Specification