A NEW METHOD FOR BOUNDARY ARTIFACT REDUCTION IN REAL-TIME HIGH-SPEED IMAGE COMPRESSION SYSTEM

Author

Ma, Wann-Jiun ; Zhao, Bin ; Mao, E.

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol.

Volume

2

fYear

2006

fDate

16-20 2006

Abstract

Image produced by CCD camera has very high resolution, and its output data rate is usually very large. Therefore, there are high requirements for image compression and its storage. CCD pictures are required to divided into several blocks for compression because image data can be processed with high speed in internal memory of DSP . But, in this way, there is to be severe boundary artifact in encoding procession. In this paper we present a new method to reduce boundary artifact based on symmetric-extend wavelet transform and overlapped data. A concrete application to image "lena" shows that this method can improve peak signal-to-noise ratio (PSNR), and acquire satisfactory visual quality of the reconstructive image. Comparing with the image without boundary artifact reduction, the reconstructed image has smaller MSE by using the new method

Keywords

data compression; image coding; image reconstruction; wavelet transforms; CCD camera; PSNR; boundary artifact reduction; encoding procession; image reconstruction; peak signal-to-noise ratio; real-time high-speed image compression system; symmetric-extend wavelet transform; Charge coupled devices; Charge-coupled image sensors; Digital signal processing; Image coding; Image reconstruction; Image resolution; Image storage; PSNR; Real time systems; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2006 8th International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-9736-3

Electronic_ISBN

0-7803-9736-3

Type

conf

DOI

10.1109/ICOSP.2006.345633

Filename

4129114