计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2013年
10期
180-183
,共4页
双密度双树复小波%图像融合%融合策略%多分辨率%多聚焦
雙密度雙樹複小波%圖像融閤%融閤策略%多分辨率%多聚焦
쌍밀도쌍수복소파%도상융합%융합책략%다분변솔%다취초
double-density dual-tree complex wavelet transform%image fusion%combination decision%multi-resolution%multi-focus
将双密度双树复小波变换引入多分辨率图像融合中,利用双密度双树复小波变换的多尺度、多方向性和平移不变性特征分解多聚焦图像,对分解后高、低频图像系数采用不同融合策略进行融合,应用双密度双树复小波逆变换重构图像.采用多组多焦距源图像进行融合实验,并对融合结果进行了客观评价.实验结果表明双密度双树复小波域融合方法对多聚焦图像具有更好的融合效果,图像的细节描述更加精确.
將雙密度雙樹複小波變換引入多分辨率圖像融閤中,利用雙密度雙樹複小波變換的多呎度、多方嚮性和平移不變性特徵分解多聚焦圖像,對分解後高、低頻圖像繫數採用不同融閤策略進行融閤,應用雙密度雙樹複小波逆變換重構圖像.採用多組多焦距源圖像進行融閤實驗,併對融閤結果進行瞭客觀評價.實驗結果錶明雙密度雙樹複小波域融閤方法對多聚焦圖像具有更好的融閤效果,圖像的細節描述更加精確.
장쌍밀도쌍수복소파변환인입다분변솔도상융합중,이용쌍밀도쌍수복소파변환적다척도、다방향성화평이불변성특정분해다취초도상,대분해후고、저빈도상계수채용불동융합책략진행융합,응용쌍밀도쌍수복소파역변환중구도상.채용다조다초거원도상진행융합실험,병대융합결과진행료객관평개.실험결과표명쌍밀도쌍수복소파역융합방법대다취초도상구유경호적융합효과,도상적세절묘술경가정학.
Double-density dual-tree complex wavelet transform is introduced to image fusion based on multi-resolution, multi-focus images are decomposed by double-density dual-tree complex wavelet transform with multi-scale, multi-direction and shift-invariance of nonsubsampled transform and according to variable characters of low and high frequency coefficients , different combination decisions are adopted to fuse images and composite coefficients are reconstructed by double-density dual-tree complex wavelet inverse transform. Some fusion experiments are done by several sets of multi-focus images and objective performance assessments are fulfilled to evaluate fusion results. The experimental results indicate that more favourable fusion performance is generated and image detail is described more fine.
