VIDEO STABILIZATION OF ATMOSPHERIC TURBULENCE DISTORTION

被引:64
作者
Lou, Yifei [1 ]
Kang, Sung Ha [2 ]
Soatto, Stefano [3 ]
Bertozzi, Andrea L. [1 ]
机构
[1] Univ Calif Los Angeles, Dept Math, Los Angeles, CA 90095 USA
[2] Georgia Inst Technol, Sch Math, Atlanta, GA 30332 USA
[3] Univ Calif Los Angeles, Dept Comp Sci, Los Angeles, CA 90095 USA
基金
美国国家科学基金会;
关键词
Imaging through turbulence; Sobolev gradient sharpening; anisotropic diffusion; spectral methods; image fusion; MODULATION TRANSFER-FUNCTION; SCALE-SPACE; IMAGE;
D O I
10.3934/ipi.2013.7.839
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We present a method to enhance the quality of a video sequence captured through a turbulent atmospheric medium, and give an estimate of the radiance of the distant scene, represented as a "latent image," which is assumed to be static throughout the video. Due to atmospheric turbulence, temporal averaging produces a blurred version of the scene's radiance. We propose a method combining Sobolev gradient and Laplacian to stabilize the video sequence, and a latent image is further found utilizing the "lucky region" method. The video sequence is stabilized while keeping sharp details, and the latent image shows more consistent straight edges. We analyze the well-posedness for the stabilizing PDE and the linear stability of the numerical scheme.
引用
收藏
页码:839 / 861
页数:23
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