超分辨率

• It ' s the aim for many pepole to improve the image resolution . one of the proper approaches to the aim is the siginal processing based methods in software . it can recover the high resolution image from multiframe undersampled images
  提高遥感影像的分辨率一直是人们追求的目标，实现这一目标的有效途径之一便是采用基于信号处理的软件方法，其基本原理是应用同一地区多幅重复观测影像之间的互补信息，用超分辨率重建算法恢复高分辨率图像。
• Super - resolution reconstruction basing on the image sequence is a technique for estimating a high - resolution image ( or sequence ) from an image sequence having slight displacement and combating additive noise and blurring due to the finite detector size and optics
  基于序列图像的超分辨率图像重构就是由一序列互有位移的低分辨率图像来估计一幅(或一序列)较高分辨率的图像，同时还能够消除加性噪声以及由有限检测器尺寸和光学元件产生的模糊。
• Discuss the wavelet interpolation method in spatial domain with the multiresolution anaysis , and give a model of multi - scale reconstruction from multiframes to superresolution . 4 . develop a practical superresolution image restoration system , which includes some basic image processing and the superresolution of image
  4 、应用文中的研究结果，在微机上建立了一套简单实用的超分辨率影像重建系统，该系统包括了对影像的基本预处理和影像重建的基本过程。
• Today , super - resolution has been used in much fields . super - resolution processing in image sequences is comprised of three aspects . the first is super - resolution algorithm ; the second is precision focus in digital camera to prove quality of image before processing of image sequences ; the third is performance evaluation of super - resolution
  利用图像序列进行超分辩率处理面临三方面研究内容:一、超分辩率处理算法;二、图像序列的预处理,即数字相机准确对焦,以提高图像序列的本身的质量;三、超分辨率处理的性能评估。
• We also establish a unified map frame to solve the super - resolution issue and pattern matching issue simultaneously . the frame has two advantages : first , the prior knowledge of the patterns is introduced into the super - resolution issue , and benefits the restoration of high - resolution image . second , more information of the low - resolution sequence is used in the pattern matching
  在最大后验概率框架下建立了统一求解超分辨率与模板匹配问题的算法框架，它具有以下特点：在超分辨率中引入了模板库中的先验知识，提高了超分辨率的恢复效果；更充分利用了图像序列中的信息，提高了模板匹配的准确性。
• For the image sequences super - resolution , we develop a new motion estimation algorithm in image sequences . instead of using only two frames from the sequence , the new algorithm uses the whole sequence to estimate the motion vector of each frame , and is more accurate and robust than the former classical motion estimation algorithms . the algorithm also provides a reliability measure of the estimated result , which was introduced into the super - resolution image reconstruction to overcome the influence of the estimation error
  在光学图像序列超分辨率方面，提出了融合多次估计的图像序列运动估计方法，将图像序列作为一个整体来计算每一帧的运动矢量，克服了以往的运动估计中只利用两帧图像的信息的局限，提高了运动估计的准确性和稳健性；给出了运动估计的置信度度量，并将其引入到图像恢复算法中，进一步克服了运动估计误差的影响。
• In aspect of precision focus in digital camera , to gets best low - resolution image sequences , the paper gives a means to judge if the camera is in focus by statistic of fringe . in aspect of super - resolution processing , the paper analyses model algorithms and ascertains algorithms our use . in aspect of performance evaluation of super - resolution , studies the ways that performance evaluation of super - resolution and the least number of images ( the sufficient of number of low - images ) to get the best result
  论文围绕这些方面开展了研究:在数字相机准确对焦方面,提出了一种基于边缘判断是否精确对焦的方法,以获取优质的低分辨率图像序列;在超分辨率处理的算法方面,分析典型算法并确定了使用的算法;在超分辨率处理的性能评估方面,研究了超分辨率的效果评价方法和利用达到该效果需要的图像序列的最少帧数(充分帧数)计算方法。
• In the sar ( synthetic aperture radar ) images , the presence of speckle often obstacles the comprehension of the sar images . the issue of speckle depressing has been focused for decades . for optical images , the resolution is the bottleneck problem in many applications , and the image sequences super - resolution issue becomes attractive
  在sar (合成孔径雷达)图像中固有的相干斑现象严重干扰了sar图像的判读，相干斑抑制成为广泛关注的问题；在光学图像序列处理中分辨率常常是制约应用的瓶颈，图像序列超分辨率问题已经成为研究热点问题。
• Digital beam forming ( dbf ) is a kind of new technique which based on the antenna beam forming and the well - developed digit signal processing . the technique should convenient obtains high resolution and low sub beam by sufficiently utilizing of the space message received by array antenna . and make the technology of beam scanning , self - calibrating and adaptive beam should be realized easily
  数字波束形成( dbf )是在天线波束形成的基础上，引入先进的数字信号处理方法后建立起来的一门新技术，这种技术可以充分利用阵列天线检测到的空间信息，并易于获得超分辨率和低副瓣，实现波束扫描，自校准和自适应波束形成等。