An algorithm to extract camera-shaking degree and noise variance in the peak-trace domain

Author

Choi, Ji Woong ; Kang, Moon Gi ; Park, Kyu Tae

Author_Institution

Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

44

Issue

3

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

1159

Lastpage

1168

Abstract

A method is proposed which estimates the degree of motion blur caused by the shaking of a digital camera during the exposure time. A new domain called the peak-trace domain is introduced to clearly specify the signal dominant region (used for extracting the camera-shaking degree) and the noise dominant region (used for estimating the noise variance). The experimental results show that the proposed method offers an efficient way to precisely detect the camera shaking and to restore the noisy blurred image

Keywords

Fourier analysis; cameras; feature extraction; image restoration; motion estimation; noise; optical transfer function; Fourier analysis; additive noise; algorithm; camera-shaking degree; digital camera; experimental results; exposure time; feature extraction; motion blur estimation; noise dominant region; noise variance; noisy blurred image restoration; parameter estimation; peak-trace domain; point spread function; signal dominant region; Additive noise; Digital cameras; Frequency domain analysis; Frequency response; Image processing; Image restoration; Moon; Motion estimation; Poles and zeros; Signal restoration;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.713250

Filename

713250