By the imaging property of CCD,the relation between the luminance of OLED display pixels and the values of CCD photosensitive pixels was established and a theoretical method for analyzing luminance uniformity of OLED display device was proposed based on the CCD image.

This paper introduces one method of high resolution image reconstruction based on the pixel offset,analyzes on the corresponding relation between each pixel position and the grey level of the pixel detection image, and through the computer s stimulation, realizes the pixel scansion and image reconstruction of the computerized tomography with the satisfied reconstruction results.