液晶与显示2012，Vol.27Issue(1)：114-120,7.DOI:10.3788/YJYXS20122701.0114
基于DSP系统的超分辨率图像重建技术研究
Super-Resolution Image Reconstruction Technology Based on DSP System
摘要
Abstract
Because of the limitations of cost and size of the navigation photo-electricity equipments, it is necessary to get images or videos as clear as possible without changing the structure of navigation photo-electricity equipments. This paper introduces a method based on DSP image processing system to realize super-resolution reconstruction which realizes motion estimation by the united optimized algorithm of Fourier-Mellin and Keren firstly, and achieves super-resolution image reconstruction based on projection onto convex sets,lastly, realizes the method on DSP by optimizes the method based on the feature of DM642 without reducing the accuracy . This method improves the resolving power of the image system without increasing the size of the system structure as well as enhance the identify ability of the system. This paper has proposed to realize super-resolution reconstruction on the embedded image processing platform which the core is DM642, the resolution of camera is 720×576, and the reconstruction time decreases to 20 s from several minutes or even several ten minutes. Experiment results indicate that the detail of reconstruction image is clearer than that of the single frame interpolation image, and the average gradient and the information entropy also get improved.关键词
超分辨率/DSP/图像处理系统/图像重建Key words
super-resolution/ DSP/ imaging processing system/ imaging reconstruction分类
信息技术与安全科学引用本文复制引用
邓建青,刘晶红,刘铁军..基于DSP系统的超分辨率图像重建技术研究[J].液晶与显示,2012,27(1):114-120,7.基金项目
"973"国家自然基金项目(No.2009CB72400607) （No.2009CB72400607）
"863"国家自然基金项目(No.2008AA121803) （No.2008AA121803）
