基于小波变换与局部离散度的多聚焦图像融合算法-南昌航空大学期刊网.PDF

2006 9 () Sep., 2006 20 3 Journal ofNanchang Institute ofAeronauticalTechnology(Natural Science) o.l 20 No. 3 , , (南昌航空工业学院, 江西 南昌 330063) [] ; ; ; [ ] , , , , , [] TP391. 41 [] B [] 1001- 4926( 2006) 03- 0020- 03 M u lti- focus im age fu sion based on w avelet transform and local dispersion T IAN Jiang- huaXIONG Bang- shu SH IQin- hong ( N anchang Institute of A eronautical T echnology, N anchang, Jiangxi 330063Ch ina) K ey w ord s: multi- focus mi age fusion; wavelet transform; localdispersion; weightiness A bstrac t: A multi- focus mi age fusion algorithm based onwavelet transform and local dispersion is proposed. A t first, themulti- fo- cus mi ageswere decomposed by thewavelet transform. Then, the high frequency coefficients of each direction were fused according to local dispersion rule, and the low frequency coefficients were fused according to weightiness rule. F inally, the fused mi agewas ob- tained by taking inversewavelet transform. The expermi ental results show that the performance of the proposedmethod outperforms the methods based on selecting large absolutewavelet coefficients and using local deviation rule. , , , , [ 1] : [ 1] , , , , Laplacian [2, 3] , ,,, [4] , , [ 5] : ( 1), ( 2) ,[ 6] [ 7] , , , , 1 , Fourier, Fourier [] 2006- 06- 12 [] ( 1977- ), , , , : 3 : 21 , , , (), ,