Research on colorimetric temperature-measurement method improved based on CCD imaging

Recently, with the development of photo-electronic technology, digital imaging processing technology and the computer technology, for the unique advantages of colorimetric temperature-measurement technology using CCD image sensor based on the irradiance characteristic of the high temperature objects, it becomes a focus of research in high temperature measurement. In this paper, CCD image processing system for temperature measurement is designed using Nios II embedded soft-core processor based on Field Programmable Gate Array (FPGA). CCD camera is used in the system as the sensor to take video images of the glowing object. The video images is then sent processed by Nios II processor on FPGA and displayed on LCD. The temperature of the selected point is figured out and the number is displayed on LCD.