摘要
On the basis of stereo image analysis, the change detection of man-made objects in urban areas is introduced. Information of the height of man-made objects can be applied to reinforce their change detection. By comparison between the new and old DSMs, the changed regions are extracted. However, our aim is to detect changes of man-made objects in urban area and further in the potential areas by the means of line-feature matching and gradient direction histogram. The experiments based on the aerial images from Japan have proven that the algorithm is correct and efficient.
On the basis of stereo image analysis, the change detection of man-madeobjects in urban areas is introduced. Information of the height of man-made objects can be appliedto reinforce their change detection. By comparison between the new and old DSMs, the changed regionsare extracted. However, our aim is to detect changes of man-made objects in urban area and furtherin the potential areas by the means of line-feature matching and gradient direction histogram. Theexperiments based on the aerial images from Japan have proven that the algorithm is correct andefficient.
