Title :
Fibonacci Fourier Transform and Sliding Window Filtering
Author :
Agaian, Sos S. ; Chen, C. L Philip ; Chen, Mei-Ching
Author_Institution :
Texas Univ., San Antonio
Abstract :
This paper presents the new Fibonacci Fourier like transform algorithms. The proposed transforms render the relationship between Fibonacci numbers and the conventional discrete Fourier transform. An application, de-noising images, is demonstrated with the idea of the proposed transforms by sliding window filtering technique. Two filtering algorithms, sliding double window filtering and fusion sliding window filtering, are exploited to improve the quality of images. A noisy system is then transformed to a filtered system as a result by altering different parameters. The proposed methods comparing with the well-known Wiener filtering are promising to be good to reduce the Gaussian noises on images.
Keywords :
Fibonacci sequences; Gaussian noise; Wiener filters; discrete Fourier transforms; image denoising; image fusion; Fibonacci Fourier transform; Gaussian noises; Wiener filtering; discrete Fourier transform; fusion sliding window filtering; image denoising; sliding double window filtering; Digital signal processing; Discrete Fourier transforms; Fast Fourier transforms; Filtering algorithms; Fourier transforms; Linear systems; Noise reduction; Rendering (computer graphics); Signal processing algorithms; Wiener filter; Fibonacci Fourier transform; fast Fibonacci Fourier transform; fusion sliding window filtering; image de-noising; sliding double window filtering; threshold filtering;
Conference_Titel :
System of Systems Engineering, 2007. SoSE '07. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
1-4244-1159-9
Electronic_ISBN :
1-4244-1160-2
DOI :
10.1109/SYSOSE.2007.4304302