期刊论文

Restoration of Blurred Citrus Image Based on Gain-ControlLucy-Richardson Algorithm

中文

江西农业大学学报

1000-2286

2018

40

1

40-48

10.13836/j.jjau.2018006

湖南省科技计划重点研发项目

本校为第一机构

在利用机器视觉系统对脐橙进行变袋长包装的过程中,脐橙的匀速直线运动会造成图像模糊进而导致脐橙边缘细节等特征信息丢失,极大地影响了脐橙尺寸检测精度。针对该问题,本文提出了一种求解脐橙图像模糊长度及恢复模糊图像的方法。对退化图像进行傅里叶变换(fourier transforn,FT),估计退化图像点扩展函数(point spread function,PSF),利用傅里叶频谱特性对运动模糊长度进行了计算,并采用了基于增益控制的LucyRichardson改进算法对运动模糊图像进行了Matlab复原仿真实验,结果表明:当算法迭代次数为8时,去振铃效应(ringing artifacts,RA)最明显,其图像分割误差最小。综合运用RGB颜色分量线性运算对...

In the process of citrus packaging via machine vision system,linear motion blurs the image and results in the loss of edge details,which greatly affected the measurement accuracy.In view of the problem,a method for resolving the image blur length and restoring the blurred image is proposed in this article.Fourier transform was conducted on the degraded image and point spread function of the image was estimated.The mo-tion blur length was calculated by analysing the characteristics of Fourier spectrum,and gain-based Lucy-Rich-ardson algorithm was applied to restore the motion degraded image.The...