Packet loss recovery for RTP-based transmission of JPEG2000 images enabling backward compatibility with standard decoder

This paper deals with a packet loss recovery technique that enables backward compatibility with a standard decoder for transmission of JPEG2000 images over the Internet using RTP. The proposed scheme utilizes packet-level FEC, the JPEG2000 layered structure, and a data embedding technique. Prior to transmission, packets containing some portions of compressed data that related to a predetermined compression rate (bits/pixels) or acceptable image quality, are strongly protected using FEC across packets. At the receiver, the redundant packets are utilized to reconstruct any lost packets of the protected data. With a slight modification in the SOT marker segment of the codestream and careful placement of the redundant packets, the generated codestream is complaint with the standard decoder. Simulations using RTP in an IP network transmission confirmed the proposal´s effectiveness.