基于多帧_差分_图像分辨率提高算法.pdf

34 6 Vol.34, No.6 2007 6 Opto-Electronic Engineering June, 2007 1003501X(2007 1, 2 1 1 ( 1. 130033 2. 100039 ) CCD CCD Matlab CCD TP751 A High-resolution image reconstruction based on multi-frame difference images 1, 2 1 1 HU Fu-sheng JIN Guang BAO He ( 1. Changchun Institute of Optics, Fine Mechanics and Physics, the Chinese Academy of Sciences, Changchun 130033, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China ) AbstractA method about the reconstruction of the high-resolution image based on multi-frame low resolution difference-images was introduced. The relationship of the pixel gray-level between low resolution difference-images and corresponding high resolution image was obtained by analyzing the energy of CCD sampling. A general regularity between the enhanced times of the resolution of the detected figure by using difference method and the least count of CCD was given. In the end, the implementation process of utilizing difference-images technique to improve the resolution of the figure was simulated using Matlab software by taking a uniformly distributed black and white stripe image as the object. The result proves that the technique is available in high-resolution image reconstruction. Key wordsImage processing; Difference-images; Pixel gray-level; Computer simulation; CCD (1) CCD GSD p ⋅H /