Title :
CCD noise filtering based on 3-dimensional nonlinear partial differential equation
Author :
Lee, Suk Ho ; Kang, Moon Gi ; Park, Kyu Tae
Author_Institution :
Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
8/1/1998 12:00:00 AM
Abstract :
A three dimensional anisotropic diffusion equation is proposed to remove noise in video sequences. The three dimensional anisotropic diffusion equation utilizes the fact that consecutive frames of high correlation can be obtained in video sequences. It is shown that the three dimensional diffusion equation gives better results than the two dimensional diffusion equation which only deals with still images and slowly smoothes the edge boundaries
Keywords :
CCD image sensors; correlation methods; image sequences; noise; nonlinear differential equations; partial differential equations; smoothing methods; video signal processing; 2D anisotropic diffusion equation; 3D nonlinear partial differential equation; CCD noise filtering; edge boundary smoothing; high correlation frames; still images; video sequences; 1f noise; Anisotropic magnetoresistance; Charge coupled devices; Differential equations; Filtering; Laplace equations; Nonlinear equations; Partial differential equations; Smoothing methods; Video sequences;
Journal_Title :
Consumer Electronics, IEEE Transactions on
