摘要
图像在形成、传输和记录过程中,由于受多种因素的影响,其质量会有所下降。引起图像退化的因素有很多,如大气湍流效应、传感器的非线性、光学系统的像差、成像设备与物体之间的相对运动等。图像恢复是指去除或减轻在获取数字图像过程中发生的图像质量下降(退化),它是图像处理中重要而又富有挑战性的研究内容。本文讨论被摄物与相机之间的相对运动造成的运动模糊图像的恢复问题,在摄取图像的短暂曝光时间内,造成图像模糊的运动可近似作为匀速直线运动处理。而匀速直线运动模糊是动态情况下的一种典型模糊,因为变速的、非直线的运动在某些条件下可以看成是匀速的、直线运动的合成结果;并且主要分析了运动模糊图像的退化模型与匀速直线运动模糊图像的恢复方法,并对实验结果进行了合理的分析。
During generation,transportation and recording,the image quality will be decreased due to the influences,such as the atmosphere turbulence,the non-linearity of the sensors,the phase difference of an optical system and the relative motion between camera and object and so on.Restoration of a blurred image is a very challenging and important job of digital image processing.It aims to recover image from a degradation state and to make the processed image as informative as possible to the original image.This article discusses the rehabilitation of blurred image caused by the relative motion between subject matter and the camera.In the intake of short exposure time image,the blurring caused by motion can be processed approximate as a uniform linear motion.Constant speed line of motion blur is a typical vague under this dynamic case,because variable motion and non-linear motion can be regarded as uniform,and linear motion of the synthesis results under certain conditions.And this paper mainly analyzes the restoration method of motion blurred image degradation model and uniform linear motion blurred image.,on this basis,reasonablely analyzes the experimental results.
作者
侯智卿
李仰军
王高
Hou Zhiqing;Li Yangjun;Wang Gao(Key Laboratory of Instrumentation Science&Dynamic Measurement Ministry of Education,North University of China,Jiancaoping District,Taiyuan,Shanxi Province 030051,China)
出处
《电子测试》
2011年第5期64-67,共4页
Electronic Test
关键词
匀速直线运动
运动模糊图像恢复
退化模型
Uniform linear motion
motion-blurred image restoration
degradation model
