系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
Systems Engineering—Theory & Practice
2012年
11期
2557~2563
,共null页
图像融合 非下采样轮廓波变换 交叉视觉皮层模型 赋时矩阵
圖像融閤 非下採樣輪廓波變換 交扠視覺皮層模型 賦時矩陣
도상융합 비하채양륜곽파변환 교차시각피층모형 부시구진
image fusion; non-subsampled contourlet transform; intersecting cortical model; time matrix
针对多传感器图像融合问题,提出一种基于非下采样轮廓波变换域改进型交叉视觉皮层模型的图像融合方法.首先,采用非下采样轮廓波变换对源图像进行多尺度、多方向稀疏分解;然后对经典交叉视觉皮层模型进行改进,改进后的模型不仅待定参数更少,而且可以自适应地确定迭代次数;最后利用其实现对各子图像的融合并进行非下采样轮廓波逆变换获得最终融合图像.实验结果验证了该方法的有效性.
針對多傳感器圖像融閤問題,提齣一種基于非下採樣輪廓波變換域改進型交扠視覺皮層模型的圖像融閤方法.首先,採用非下採樣輪廓波變換對源圖像進行多呎度、多方嚮稀疏分解;然後對經典交扠視覺皮層模型進行改進,改進後的模型不僅待定參數更少,而且可以自適應地確定迭代次數;最後利用其實現對各子圖像的融閤併進行非下採樣輪廓波逆變換穫得最終融閤圖像.實驗結果驗證瞭該方法的有效性.
침대다전감기도상융합문제,제출일충기우비하채양륜곽파변환역개진형교차시각피층모형적도상융합방법.수선,채용비하채양륜곽파변환대원도상진행다척도、다방향희소분해;연후대경전교차시각피층모형진행개진,개진후적모형불부대정삼수경소,이차가이자괄응지학정질대차수;최후이용기실현대각자도상적융합병진행비하채양륜곽파역변환획득최종융합도상.실험결과험증료해방법적유효성.
To overcome the multi-sensor image fusion problem, a technique for image fusion based on Non-Subsampled Contourlet Transform (NSCT) domain improved Intersecting Cortical Model (ICM) has been proposed. To begin with, multi-scale and multi-directional sparse decompositions of source images are performed by NSCT. Then, the basic ICM is improved to be I2CM, which has not only fewer parameters, but the ability to determine the iteration times adaptively. Finally, the fusion scheme of sub-images is carried out by I2CM and the final fused image can be obtained by utilizing inverse NSCT to all fused sub-images. Experimental results show that the technique proposed has good performance.