Title :
Electronic image stabilization algorithm based on TD filter
Author :
Ji, Hongxia ; Li, Baoan ; Yao, Jun
Author_Institution :
Sch. of Autom. Sci. & Electr. Eng., Beihang Univ., Beijing, China
Abstract :
A electronic image stabilization algorithm based on TD filter is presented. First, the corners are extracted using Harris operator and the inaccurate are discarded on adjustable least squares method. Then mapping relationships are established between frames and global motion vectors are obtained adopting least-squares solution based on affine transformation model. Last, compensation vectors are acquired while global vectors are smoothed using TD filter. Experimental results show the stabilization algorithm is effective and robust. The correct motion vectors of camera are reserved and noise is eliminated.
Keywords :
affine transforms; feature extraction; filtering theory; image denoising; image motion analysis; least squares approximations; Harris operator; TD filter; affine transformation model; corner extraction; electronic image stabilization; global motion vector; least squares method; mapping relationship; noise elimination; Filtering; Filtering algorithms; Mathematical model; Motion estimation; Optical filters; PSNR; Vectors; Harris corner detection; TD filter; electronic image stabilization; global motion estimation;
Conference_Titel :
Image and Signal Processing (CISP), 2011 4th International Congress on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-9304-3
DOI :
10.1109/CISP.2011.6100376
