DEVELOPMENT AND ANALYSIS OF IMAGE FUSION TECHNIQUES FOR SATELLITE DATA MERGE AND ENHANCEMENT

Abstract

Image fusio n of satel l ite da ta is a n importa nt aspect of digita l rem ote sens ing processin g. Satellite da tu a rc rapidl y increasin g covering the w hole earth with different resoluti ons, form als, ba nds, a nd ch a racteristi cs. Multispectra l a nd h yper spectra l da ta must be all utili zed for m ax imi zing the benefit ga in ed from the remote sensin g imagin g process. im age fusi on i s utili zed fo r m ergin g th e acti ve a nd pass i ve as well as pan chrom ati c,

multi s pectra l , a nd hy per spectra l da ta us ing a d va n ced im age processing techniques to enhance image qua lity a nd produce better interpreted fused images. It is used for improv ing im age sh a rpenin g a nd class ifica ti on as ' well as cha n ge detecti o n preservin g as poss ible th e accuracy o r hi gh est rc.soluti on input image. In this resea rch, majo r acti ve a nd pass1 vc systems a rc surveyed a nd prev ious resea rch w ith i mage fus i on techniq u es is presented a nd ana l yzed . Di ffcrcnl im age fusi on techniques arc eva luated . A case study a rea is chosen in K a fr 1 -Sh ci k gover n ora te in the n orth ern coast o f Egypt. Different remo te sensing da ta a rc utili zed , in cl u ding LANDSAT, S POT, IRS, AND RADAR. images acquired at va ri ous d ates. G round contro l po ints (GC P 's) coordin ates a rc collected us in g G PS technique. Then, sa tellite images arc radi ometricall y and geometri ca ll y corrected . Major softwa re im age fusi o n techniqu es a rc an a lyzed in cluding o pti ca l a nd RA DAR techniques. Output fused im ages me studi ed and eva lu ated a nd major benef i ts a nd sho rtcomin gs arc listed . A new rigorous im age fusi o n technique is d eveloped lor im age d a ta fus i on utili z ing a concept s imil ar to equi va l ent res i sta nce of para llel electri ca l resi sta n ces. The d evel oped model can be used fo r h andling a ll da ta ty pes w ith a n y ba nd num ber.