Scalable image coder for mobile device

Author

Yang, Yang ; Tan, Ee-Leng ; Gan, Woon-Seng ; Chong, Yong-Kim

Author_Institution

Nanyang Technol. Univ., Singapore

fYear

2007

fDate

10-13 Dec. 2007

Firstpage

1

Lastpage

5

Abstract

Image compression methods provide users the option to reduce the size of image data and significant amount of time for transmission of images. A perceptually lossless coder is desired to generate perceptually high quality image with higher compression ratio. In this paper, a prototype of the scalable image coder based on the just noticeable distortion (JND) profile with subband discrete cosine transform (SBDCT) is built in the personal digital assistant (PDA). The coding scheme based on JND profile and SBDCT provides computational scalability, decodable by any current JPEG-compliance decoder and therefore permitting easy integration with any current JPEG- compliance image systems. To further evaluate this prototype, simulations in Pocket PC emulator and the actual implementation of the coder in PDA is carried out.

Keywords

data compression; decoding; discrete cosine transforms; image coding; JPEG-compliance decoder; Pocket PC emulator; image compression; just noticeable distortion; mobile device; personal digital assistant; scalable image coder; subband discrete cosine transform; Digital images; Discrete cosine transforms; Image coding; Image quality; Image storage; Personal digital assistants; Prototypes; Scalability; Space technology; Transform coding; Image processing; JPEG coding; Just noticeable distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications & Signal Processing, 2007 6th International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-0982-2

Electronic_ISBN

978-1-4244-0983-9

Type

conf

DOI

10.1109/ICICS.2007.4449701

Filename

4449701