A modified descriptor for blob detection in nonlinear scale space
Liangjin Zhao, Yan Ding, Hong Mei Xu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2017
In this paper, we present a novel binary descriptor with orientation, which called Intensity-Centroid LDB (IC-LDB). This descriptor resolves the problems that the current non-binary descriptors are too compute-expensive to achieve real-time performance in the nonlinear scale space and that the original Local Difference Binary (LDB) descriptors do not have an orientation component to keep rotation invariant. Experimental results demonstrate that IC-LDB proposed in this paper was faster than previously non-binary descriptors which were used in nonlinear scale space, while performing as well in many situations.