UAV Image Registration Algorithm Using Color Invariant and AKAZE Feature
LIANG Huanqing, Xie Yi, FU Sizhou · DOAJ (DOAJ: Directory of Open Access Journals) · 2017
Image matching based on feature was one of practical methods in UAV image matching. Since the conventional methods of image registration mainly used gray image as input that it could not take color features into account to distinguish the identical point. To address this problem, this paper designed a matching algorithm combined color invariant with AKAZE feature, which overcame the shortcoming of ignoring color information in traditional UAV image matching. Then gray level transformation was utilized to reduce the number of feature points and remain its reliability. Experimental results demonstrate that the proposed method can find the identical point accurately and enhance the efficiency.