A mosaic method of different ground resolution images

In the process of airborne remote sensing monitoring,zoom lens is widely used and altitude is frequently changed.The airborne images of different resolutions are got.Therefore,to mosaic the quick views of different resolution for real-time monitoring is needed.A new method to solve the problem is proposed.This method uses quartering theory to split images,detects zooming ratio,and selects registration strategy.Then SURF(Speeded-Up Robust Features)algorithm is applied to mosaic images.It can be used to get a mosaic image under the condition of continuous zooming with focal distance ranging from high power to low power or from low power to high power.The mosaic experiments of zooming airborne images and zooming ground images indicate this new method can be used to mosaic images with different resolutions,and the results are all based on the highest resolution.