Fast region-of-interest transcoding for JPEG 2000 images

Author

Kong, Hao-Song ; Vetro, Anthony ; Hata, Toshihiko ; Kuwahara, Naoki

Author_Institution

Mitsubishi Electr. Res. Labs, Cambridge, MA, USA

fYear

2005

fDate

23-26 May 2005

Firstpage

952

Abstract

The paper presents a newly developed region-of-interest (ROI) transcoding method for JPEG 2000 images; it can be used for many progressive image/video streaming applications. The proposed method takes advantage of the empty packet property provided by the JPEG 2000 standard to elevate the priority of the ROI. Based on the user specified ROI information and progressive parameters, the developed transcoder extracts the selected ROI and background packets at the desired quality and suppresses the unselected packets to a low quality. Since the transcoder only performs a reorganization of the packets in the original coded bitstream, it does not involve any re-encoding operation. Compared to other ROI coding schemes in the literature, the proposed method has the advantages of lower complexity and faster processing. Therefore, it is very suitable for real-time applications.

Keywords

computational complexity; image coding; transcoding; JPEG 2000 images; ROI transcoding; complexity; empty packet property; image streaming; packet reorganization; real-time applications; region-of-interest transcoding; video streaming; Bandwidth; Data mining; Decoding; Image coding; Research and development; Shape; Streaming media; Transcoding; Video surveillance; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1464747

Filename

1464747