Image mosaic research based on wavelet and rough set algorithm

LI Hong-sheng; ZHANG Jian

doi:10.3788/YJYXS20142902.0298

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Image mosaic research based on wavelet and rough set algorithm

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- Image mosaic research based on wavelet and rough set algorithm
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 2, Pages: 298-303(2014)
- 作者机构：
  
  黄淮学院信息工程学院,河南驻马店,463000
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142902.0298
  CLC： TP393
- Received：06 December 2013，
  
  Revised：08 December 2013，
  
  Published：05 March 2014
- 稿件说明：
移动端阅览
李宏升, 张健. 基于小波粗糙集算法的图像拼接研究[J]. 液晶与显示, 2014,29(2): 298-303

LI Hong-sheng, ZHANG Jian. Image mosaic research based on wavelet and rough set algorithm[J]. , 2014,29(2): 298-303
李宏升, 张健. 基于小波粗糙集算法的图像拼接研究[J]. 液晶与显示, 2014,29(2): 298-303 DOI： 10.3788/YJYXS20142902.0298.

LI Hong-sheng, ZHANG Jian. Image mosaic research based on wavelet and rough set algorithm[J]. , 2014,29(2): 298-303 DOI： 10.3788/YJYXS20142902.0298.

摘要

为了提高图像拼接的质量，采用小波粗糙集算法。首先，基于自适应小波变换对图像分解，通过小波方向的对比度设定阈值来平衡图像内各个对象的差异。接着，分解图像特征点的粗糙决策属性来划分重叠区域，通过空间的划分，把上近似在属性子集的划分区域划分到对象集合中，下近似有可能划分到其他对象集合中，比较计算参考图像与输入图像特征向量因数集的欧氏距离约简规则选择特征点，并把输入图像中欧氏距离最小的点作为参考图像中特征点的匹配点。然后，通过平均值法消除拼接缝隙，实现图像的上下、左右以及斜方向的无缝拼接。最后，给出了算法流程和评价指标。实验仿真表明，本文算法拼接缝隙区域过渡光滑，视觉效果连续，没有出现重叠鬼影，本文算法的信息熵为33.872 1 bit，处理时间为2.436 8 s。满足拼接结果中对执行时间少、信息含量大等要求。

Abstract

In order to improve the quality of image mosaic

a wavelet and rough set algorithm is established.First

image is decomposed by adaptive wavelet transform

directions of the wavelet of image are set threshold to contrast and balance differences in individual object.Second

feature point is divi-ded the overlapped area

approximation properties in a subset of the divided region are divided into collection of object

lower approximation could be divided into other objects in the collection

reference and input feature vector factors of image are compared and ruled to Simple Euclidean Distance.Third

gap of image mosaic is eliminated by average method and disappeared in other directions.Finally

the whole process is described.The experiments show that this algorithm can made gap smoothly

visual appealing

without overlapping

and entropy of information is 33.872 1 bit

time are 2.436 8 s.It takes less time and has large information.

关键词

Keywords

references

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