The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON INFORMATION SCIENCE AND APPLICATIONS
Transactions ID Number: 52-199
Full Name: Tianyi Li
Position: Doctor (Researcher)
Age: ON
Sex: Male
Address: Yihuan South Road
Country: CHINA
Tel:
Tel prefix:
Fax:
E-mail address: litianyi8@163.com
Other E-mails:
Title of the Paper: A Meliorated Approach for Estimating the Variance of Noise in Images Using Wavelet Transform
Authors as they appear in the Paper: Tianyi Li;Minghui Wang;Yajuan Wu;Huawen Chang
Email addresses of all the authors:
Number of paper pages: 14
Abstract: On the basis of Donoho¡¯s classical method, a novel approach is proposed in this paper to estimate the variance of Gaussian white noise based on the wavelet coefficients estimation of original image. The proposed approach exploits the wavelet interscale correlation to estimate the wavelet coefficients of the original image, thus get the purer noise coefficients by deducting the estimated values from the coefficients of the noisy image, then does estimation once again using the Donoho¡¯s formula. Experimental results are provided which indicate that the proposed approach outperforms traditional ones, especially in scenarios where there are less noise or much more image details.
Keywords: Wavelet transform; Variance estimation; Wavelet coefficient; Correlation
EXTENSION of the file: .pdf
Special (Invited) Session:
Organizer of the Session:
How Did you learn about congress:
IP ADDRESS: 219.234.81.135
