Fusion algorithm based on improved projected gradient NMF and NSCT

YANG Yue-tao; ZHU Ming; HE Bai-gen; GAO Wen

doi:10.3788/OPE.20111905.1143

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Fusion algorithm based on improved projected gradient NMF and NSCT

Article | 更新时间：2020-08-12

- Fusion algorithm based on improved projected gradient NMF and NSCT
- Optics and Precision Engineering Vol. 19, Issue 5, Pages: 1143-1150(2011)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春 130033
  2. 中国科学院研究生院,北京 100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111905.1143
  CLC： TP391.4
- Received：04 August 2010，
  
  Revised：13 September 2010，
  
  Published Online：26 May 2011，
  
  Published：26 May 2011
- 稿件说明：
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杨粤涛, 朱明, 贺柏根, 高文. 采用改进投影梯度非负矩阵分解和非采样Contourlet变换的图像融合方法[J]. 光学精密工程, 2011,19(5): 1143-1150

YANG Yue-tao, ZHU Ming, HE Bai-gen, GAO Wen. Fusion algorithm based on improved projected gradient NMF and NSCT[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 1143-1150
杨粤涛, 朱明, 贺柏根, 高文. 采用改进投影梯度非负矩阵分解和非采样Contourlet变换的图像融合方法[J]. 光学精密工程, 2011,19(5): 1143-1150 DOI： 10.3788/OPE.20111905.1143.

YANG Yue-tao, ZHU Ming, HE Bai-gen, GAO Wen. Fusion algorithm based on improved projected gradient NMF and NSCT[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 1143-1150 DOI： 10.3788/OPE.20111905.1143.

摘要

针对非负矩阵分解(NMF)算法时间复杂度较高

而投影梯度(Projected Gradient

PG)优化方法可以大幅降低NMF约束优化迭代问题的时间复杂度

提出一种基于改进的投影梯度NMF(IPGNMF)和非采样Contourlet变换(NSCT)相结合的图像融合方法。采用NSCT对已配准的源图像进行多尺度、多方向的分解

将分解后的低频部分作为原始数据

利用IPGNMF得到包含特征基的低通子带系数;高频部分应用了一种基于邻域一致性测度(NHM)的局部自适应融合规则得到各带通方向子带系数。经过NSCT逆变换得到融合图像。实验结果表明

融合结果在主观和客观评价上均优于NSWT方法、IPGNMF方法和NSCT方法。与NSCT法相比

实验所采用的两组图像的信息熵、清晰度和

指标分别提高了0.062 7%、0.901%、3.120 1%和 2.769%、2.203%、1.049%。

Abstract

As the Non-negative Matrix Factorization (NMF) algorithm has a higher iteration time complexity and the Gradient Projection(BP) optimization method can significantly reduce the NMF iteration time complexity

an image fusion algorithm by combing the Improved PGNMF(IPGNMF) and Nonsubsampled Contourlet Transform (NSCT) is proposed in this paper. Firstly

the registered original images are in multi-scale and multi-direction decomposition in NSCT domain. According to the characters of the different areas

different fusion rules are designed in the NSCT domain. The low-pass sub band coefficients used as original data impose to the IPGNMF algorithm to obtain the fused low-pass sub band coefficients and the band-pass directional sub band coefficients impose to the Neighborhood Homogeneous Measurement (NHM) algorithm to obtain the fusion band-pass directional sub band coefficients. Finally

the fused result is obtained through inverse NSCT. The proposed algorithm has been experimented on two groups of different scene images

and experimental results show that it superior to those conventional fusion methods based on NSWT

IPGNMF and NSCT in subjective and objective standards.As contrasted with NSCT method in two group images

its entropy

definition and

ABIF

have been increased by 0.0627%

0.901%

3.1201% and 2.769%

2.203%

1.049%

respectively。

关键词

Keywords

references

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