Open AccessVideo stabilization in atmosphere turbulent conditions based on the Laplacian-Riesz pyramid
Author(s) -
Bin Xue,
Yi Liu,
Linyan Cui,
Xiangzhi Bai,
Xin Cao,
Fugen Zhou
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.028092
Subject(s) - turbulence , atmosphere (unit) , pyramid (geometry) , distortion (music) , phase (matter) , optics , amplitude , computer science , riesz transform , frame (networking) , physics , laplace operator , computer vision , artificial intelligence , mathematics , telecommunications , mathematical analysis , meteorology , amplifier , bandwidth (computing) , quantum mechanics
Video stabilization in atmosphere turbulent conditions is aimed at removing spatiotemporally varying distortions from video recordings. Conventional shaky video stabilization approaches do not perform effectively under turbulent circumstances due to the erratic motion common to those conditions. Using complex-valued image pyramids, we propose a method to mitigate this erratic motion in videos. First, each frame of a video is decomposed into different spatial frequencies using the Laplacian pyramid. Second, a Riesz transform is adopted to extract the local amplitude and the local phase of each sub-band. Next, low-pass filters are designed to attenuate the local amplitude and phase variations to remove turbulence-induced distortions. Experimental results show that the proposed approach is efficient and provides stabilizing video in atmosphere turbulent conditions.