Motion-JPEG2000 Stream Scaling for Multi-Resolution Video Transmission

In this paper, we present a real-time video system for the transmission of Motion-JPEG2000 codestreams with multiple resolutions. To achieve this multi-resolution video in real-time, a software tool, named ‘stream scaler’, was newly developed. It directly looks at each packet’s location in a codestream before deciding whether it is accepted as a new packet for a scaled codestream. The SOP marker is used for identifying the packet. The stream scaler can control the resolution levels and quality layers of MotionJPEG2000 codestreams to be adapted to end-user device requirements and to different bandwidth capacities. The computational complexity of the stream scaler was measured to be very low and suits real-time processing. We have demonstrated a Motion-JPEG2000 video system with the stream scaler, which delivers videos with three different resolutions: HD, SD and CIF, in real-time.