That’s what [Thomas Fischl] decided to do, using an infrared thermal sensor array (MLX90640) connected through a PIC16LF1455 to a host computer. The computer handles the temperature calculation ...
[DZL] used an MLX90640 sensor to create a DIY thermal imager with a small OLED display, but since the sensor is relatively low-resolution at 32×24, displaying the data directly looks awfully blocky.