Radiometric camera with black body elements for screening infectious disease carriers and method for calibrating a thermal camera having internal black body elements

A method for calibrating a radiometric camera having internal black body components, comprising:

• comparing at least one first portion of an infrared image captured by a radiometric camera with at least one second portion of the infrared image, the radiometric camera including an infrared sensor having a plurality of portions including at least one first portion and at least one second portion, wherein the infrared sensor is pointed in a direction, wherein the radiometric camera is adapted to receive at least one black body element in front of a detector containing the infrared sensor with respect to the direction of the infrared sensor, wherein the at least one black body element blocks radiation to the at least one first portion of the infrared sensor, wherein the at least one black body element does not block radiation to the at least one second portion of the infrared sensor, wherein the at least one first portion of the infrared image is captured by the at least one first portion of the infrared sensor, wherein the at least one second portion of the infrared image is captured by the at least one second portion of the infrared sensor, wherein the infrared image is captured by the infrared sensor when the at least one black body element is disposed in front of the detector;
• determining a plurality of calibration parameters for the infrared sensor based on the comparison, wherein each of the plurality of calibration parameters corresponds to one of the plurality of portions of the infrared sensor;
• and
• creating a calibration table, wherein the calibration table includes the plurality of calibration parameters for the plurality of portions of the infrared sensor, wherein the calibration table and the plurality of calibration parameters adjust for bias of the infrared sensor when utilized for calibrating the radiometric camera.

A radiometric camera, comprising:

• a detector, the detector further comprising a thermal detector configured to capture thermal images, wherein the thermal detector is pointed in a direction, wherein the radiometric camera is adapted to receive at least one black body element in front of the detector with respect to the direction of the thermal detector, the thermal detector having a plurality of portions including at least one first portion, wherein the at least one black body element affects radiation readings by the at least one first portion of a plurality of portions of the thermal detector when disposed in the radiometric camera;
• wherein the plurality of portions of the thermal detector further include at least one second portion,
• wherein the at least one black body element affects radiation readings by the at least one first portion via blocking the at least one first portion, and
• wherein the at least one black body element does not block radiation to the at least one second portion.