Title :
A new image registration method for infrared images and visible images
Author :
Wang, Bingjian ; Wu, Dongliang ; Xu, Wenzheng ; Lu, Quan ; Li, Fan ; Liu, Shangqian ; Gao, Guowang ; Lai, Rui
Author_Institution :
Sch. of Tech. Phys., Xidian Univ., Xi´´an, China
Abstract :
A new image registration method for infrared images and visible images is proposed in this paper. This method is a modified version of SIFT algorithm. Salient points of infrared images and visible images are extracted along edges of images. Each salient point is assigned a dominant direction which is the peak of orientation histogram of local image around it and a feature vector which is formed from the orientation histograms of sub-region around it. After salient points matching, RANSAC algorithm is used to eliminate wrong corresponding pairs. Experimental results show that this method has a good registration result for infrared images and visible images.
Keywords :
image matching; image registration; infrared imaging; random processes; vectors; RANSAC algorithm; SIFT algorithm; feature vector; image registration; infrared image; orientation histogram; random sample consensus; salient point matching; visible image; Detectors; Feature extraction; Histograms; Image edge detection; Image registration; Imaging; Pixel; RANSAC; image registration; infrard image; modified SIFT; salient points; visible image;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5647902
