Systems and methods for detecting edema by fusing hyperspectral and visible image

A method for detecting edema in a patient, the method comprising:

• irradiating, by a light source, a patient's tissue with light;
• filtering, by a tunable filter, light reflected from the patient's tissue into one or more wavelength bands;
• collecting, by a detector, the tuned reflected light from the patient's tissue;
• generating, by the detector, data associated with the tuned reflected light;
• receiving, by a processing device operably connected to the detector, the tuned reflected light that is separated light into one or more wavelength bands;
• generating, by the processing device, a visible image and a hyperspectral image;
• calculating, by the processing device, the intensity of the tuned reflected light;
• comparing, by the processing device, the calculated intensity of the tuned reflected light against a control measurement;
• fusing, by the processing device, intensity data from the visible image and the hyperspectral image to spatially resolve individual pixels in the hyperspectral image;
• determining, by the processing device, whether the patient's tissue exhibits symptoms of edema;
• accessing, by the processing device, a look up table (LUT) that includes a plurality of voltages that, when applied to a filter, enable the filter to produce filtered light of a spectral shape associated with one or more tissue types related to edema;
• determining, by the processing device, an edema score for the patient, wherein the edema score represents at least one of whether the patient has edema and a severity of the patient's edema;
• and
• displaying, by a display device operably connected to the processing device, images and information related to the detection of edema in the patient,
• wherein the detector comprises one of an indium gallium arsenide detector and a focal plane array detector.