From Image to Sound: the Study of Assistive System for the Blind Based on EBCOT

Author

Yang, Dan ; Zhang, Fumei ; Wang, Xu ; Xu, Bin

Author_Institution

Northeastern Univ., Shenyang

fYear

2007

fDate

23-27 May 2007

Firstpage

1198

Lastpage

1201

Abstract

We explore in this study how to provide the real-time processing of the system, which helps the blind "see" the world by auditory pathway, based on Embedded block coding with optimized truncation (EBCOT). The main idea of the EBCOT algorithm is to apply two-tier coding and optimal wavelet base. A special feature of EBCOT algorithm is its ability to code with embedded block and the minimum rate-distortion. This paper demonstrates the properties of EBCOT with several examples and provides extensive comparison to other coding methods, such as SPIHT and EZW. In addition, we compare with the wavelet of db9/7 and db5/3 used in EBCOT. Experimental results reveal that the proposed method is feasible and effective.

Keywords

block codes; embedded systems; handicapped aids; hearing; image coding; medical image processing; optimal systems; EBCOT coding algorithm; EZW coding method; SPIHT coding method; auditory pathway; blind assistive system; db5/3 wavelet; db9/7 wavelet; embedded block coding; minimum rate-distortion; optimal wavelet base; real-time processing system; two-tier coding; Acoustical engineering; Biomedical imaging; Block codes; Headphones; Image coding; Image resolution; Partitioning algorithms; Rate-distortion; Real time systems; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Complex Medical Engineering, 2007. CME 2007. IEEE/ICME International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1077-4

Electronic_ISBN

978-1-4244-1078-1

Type

conf

DOI

10.1109/ICCME.2007.4381933

Filename

4381933