MATLAB: How to detect temperature from facial thermal camera

Image Processing Toolboxthermal camera

Hi, I am working on a project with facial thermal camera. I need to detect 5 regions of interest in the face: the left and right supraorbital, the left and right periorbital and the nose. I have to track this 5 regions on interest during video record and then extract temperature from this ROIs. I have no skills in Image processing. Does anyone can help me?

Thanks a lot.

Best Answer

You need to have something that identifies the regions, like a binary image or some coordinates. Then you can just do

meanTemperature = mean(thermalImage(binaryImage));

Attached demo may help.

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MATLAB: How to get the region shown in the image

You didn't attach an image, you attached a screenshot so I can't run any code on it. Anyway, here's how to do it (untested)

%  Invert the image so you have a white ring.
maskImage = ~binaryImage;
imshow(maskImage);
% Fill the image so you have a white disk.
maskImage= imfill(maskImage, 'holes');
% Mask your original binary image.
binaryImage(~maskImage) = false;

Or, if you already know a point in the iris, you can use that to make a marker image and then call imreconstruct().

markerImage = false(size(binaryImage));
markerImage(row, column) = true; % Put a dot where the iris is.
% Extract only the blob containing the dot.
outputImage = imreconstruct(binaryImage, markerImage);

MATLAB: Mapping of temperature values on ROI of image

See if this is what you want:

Best Answer

Related Solutions

MATLAB: How to get the region shown in the image

MATLAB: Mapping of temperature values on ROI of image

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