Multi-sensor image registration based on algebraic projective invariants

作者：Li Bin^*; Wang Wei; Ye Hao

来源：Optics Express, 2013, 21(8): 9824-9838.

DOI：10.1364/OE.21.009824

A new automatic feature-based registration algorithm is presented for multi-sensor images with projective deformation. Contours are firstly extracted from both reference and sensed images as basic features in the proposed method. Since it is difficult to design a projective-invariant descriptor from the contour information directly, a new feature named Five Sequential Corners (FSC) is constructed based on the corners detected from the extracted contours. By introducing algebraic projective invariants, we design a descriptor for each FSC that is ensured to be robust against projective deformation. Further, no gray scale related information is required in calculating the descriptor, thus it is also robust against the gray scale discrepancy between the multi-sensor image pairs. Experimental results utilizing real image pairs are presented to show the merits of the proposed registration method.

• 出版日期2013-4-22
• 单位清华大学