Pixel-wise radiometric line scanner calibration

Calibrating the response function of a line scanner is very important in many fields of computer vision. We propose a method to reduce nonequivalence present in response functions of pixels. Contrary to current state-of-the-art methods our method uses a linear light source which is usually attached to line scanners for pixel-wise calibration. We define a radiant intensity function for a linear light source and fit it to captured images to calibrate the response function. We applied our method to a line sensing camera to remove streaking noise when scanning and experimental results showed a significant reduction of noise in the system.