3D change detection is implemented by new epoch remotely sensed stereo pair with old epoch GIS-aided data that can provide information as prior knowledge. Firstly, exterior orientation elements of stereo pair are solved by control data supported by old epoch GIS data (DOM and DLG). Secondly, on the basis of a plane sweep method, dense multi-view matching is realized by object reference aided by a DOM and DEM. Thirdly, 3D change detection is carried out by subtracting an old epoch DEM from a new epoch DEM generated by above dense image matching. Finally, for remotely sensed aerial images of Wen...