Multispectral Camera

Thermal cameras and visible cameras reveal different but complementary information about a scene, and high-resolution thermal cameras are generally expensive compared to their visible counterparts. I built a multispectral camera that captures a high-resolution visible image to enhance a low-resolution thermal image at a fraction of the cost of higher-end thermal cameras.

Camera Hardware

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Taking thermal and visible images of a vending machine

Image Registration

Thermal image

Visible image

Registered image pair

Image Fusion

Below is a comparison of image fusion techniques across multiple scenes. Columns from left to right: original thermal image, high-pass filter fusion, gradient transfer fusion, and YCbCr color space fusion.

Fused images