An Image Registration Method Based on Regional Feature
Aiming at the problem that the images before and after damage cannot be registered due to the differ-ent shooting time,different shooting angles and drastic changes in the images caused by damage,an image regis-tration method based on regional features was proposed.The shape features and spatial relationship features of building area were extracted to construct the feature descriptors of building area,and the similarity of feature de-scriptors was used to complete image registration.In order to make the feature descriptor obtain translation in-variance,rotation invariance and scale invariance,the range interval of the center distance between the descrip-tion region and other regions,the angle between the center line and the long axis were evenly divided,and the index of the divided interval was used to construct the binary group.By calculating the area ratio between the building area and the description area satisfying the range of the corresponding distance and included angle of the binary group as the element of the feature descriptor.Images from the Russia-Ukraine war were used for regis-tration experiments.The experimental results showed that,compared with the existing methods,the proposed method could complete the registration of images before and after damage with high matching rate and good ro-bustness.
万方数据
维普
