Fast region-of-interest transcoding for JPEG 2000 images

This paper presents a newly developed region-on-interest (ROI) transcoding method for JPEG 2000 images, which can be used for many progressive image/video streaming applications. The proposed method takes advantage of the empty packet property provided by JPEG 2000 standard to elevate the priority of the ROI. Baased on the user specified ROI information and progressive parameters, the developed transcoder extracts the selected ROI and background packets with the desired quality and suppresses the unselected packets to the low quality. Since the transcoder only performs re-organizing 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 application. IEEE International Symposium on Circuits and Systems (ISCAS) This work may not be copied or reproduced in whole or in pa...

• Type: Conference
• Year: 2005
• Where: ISCAS
• Authors: Hao-Song Kong, Anthony Vetro, Toshihiko Hata, Naoki Kuwahara
• Keywords: Electric Research Laboratories, ISCAS 2005, JPEG 2000, Mitsubishi Electric Research