The Research Of Digital Aerial Image Fusion Technology

With the fast development of sensor,remote sensing plateform,communication technologyand other correlative fields,modern remote sensing can already dynamically,fast,accuratelyprovide the sameness area image datas of multi-resolution,multi-spectral,multi-temporal.Toget more clear,accurate,complete understanding about resourch targets,it is necessary tocombine ascendant of different type image data.Image fusion technology is juse about theavailability means which resolve this kind issue,and become gradually resourch hotspot ofcommunication disposal and analysis application field.With the resourch object of0.25meterresolution panchromatic image and1.125meter resolution multi-spectral image which areprovided with one kind new type large array CCD aerial camera,this article accomplished severalkinds of processing tasks,such as dodging,geometric correction,subset,registration, andadopted HIS transform fusion,Wavelet transform fusion,fast HIS fusion on Curvelet transformto carry through fusion experimentation,lately evaluated results with subjective andimpersonality aspects.This paper mainly contain the following parts:1. Expatiated detailedly remote sensing image fusion processing technology,analyzed polynomial correction,orthorectify to get each advantage and applicability.Considering that heterogeneous of lens optics identity to cause mid‐image bright and entourage dark,this paper bringed forward one kind dodging technology based on digital image management.2. Analysed concept,mode,application of image fusion technology,HIS transform fusion, Wavelet transform fusion,and bringed forward fast HIS fusion on Curvelet transform.3. After accomplished all processing tasks,this paper adopted HIS transform fusion,Wavelet transform fusion,fast HIS fusion on Curvelet transform to carry through fusion experimentation,and gave subjective evaluation,at the same time combined4kinds guide line to make impersonality analisys(entropy,std,correlation,bras).Results proved this paper method haved better spectral preservation ability and enhanced image resolution,definition.