A Robust Method for Local Image Feature Region Description
Mu Zhi · Acta Automatica Sinica · 2011
In this paper,a robust method for local image feature region description,which is called IWCS-LTP(improved weighted center symmetric local trinary pattern)descriptor,is proposed.It uses a SIFT-like grid that makes the descriptor contain more structural information.By using the ICS-LTP operator,the descriptor can have more information of the image gradient direction without increasing the dimension of the descriptor and computing burden.This method uses the weighted texture spectrum histogram to construct the descriptor to contain the image gradient-magnitude information. The effectiveness of the designed descriptor has been validated by extensive experiments.