Title :
On retinal image compression using asymmetric filter bank
Author :
Patil, Tejas G. ; Patankar, Sanika S. ; Kulkarni, J.V.
Author_Institution :
Dept. of Instrum. & Control Eng., Vishwakarma Inst. of Technol., Pune, India
Abstract :
This paper presents method of retinal image compression using filter bank which is build with non symmetric filters. A method for deriving symmetric filters is also illustrated in detail. We also overview the basics of filter bank and perfect reconstruction conditions associated with it. The effect of number of decimating and interpolating stages on compressibility of proposed filter banks is also highlighted. Experimentation of compression is done on sample database retinal images by computing its signal to noise ratio (SNR) for 2:1 and 4:1 compression ratio. Average SNR for 2:1 and 4:1 compression ratio with proposed asymmetric filter bank is observed to be with a slight difference.
Keywords :
channel bank filters; data compression; image coding; image reconstruction; SNR; asymmetric filter bank; compression ratio; decimating stage; interpolating stage; nonsymmetric filter; reconstruction condition; retinal image compression; signal-to-noise ratio; symmetric filter; DRIVE; Filter bank; PR; SNR;
Conference_Titel :
Computational Intelligence & Computing Research (ICCIC), 2012 IEEE International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4673-1342-1
DOI :
10.1109/ICCIC.2012.6510264
