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Proceedings Paper

The hardware implementation for real-time network video processing and transportation based on FPGA and DSP
Author(s): Xuan Liang; Huosheng Xu; Xi Chen; Yu Fan
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Paper Abstract

This paper research on a high definition Ship-borne radar and video monitoring system which requires multi-channel TV video and radar video encoding and decoding ability. The real time data transferring is based on RTP/RTCP protocol with guarantee of QoS. In this paper, we propose an effective Feedback control for real time video stream to combine with forward error correction (FEC). In our scheme, the server multicasts the video in parallel with FEC packets and adaptive RTCP feedback control of the video stream. On the server side, we analyze and optimize the number of streams and FEC packets to meet a certain residual loss requirement. For every RTT round trip time, the sender sends a forward RTCP control packet. On the receiver side, we analyze the optimal combination of FEC and packets to minimize its loss. Upon the receipt of a backward RTCP packet with the packet loss ratio from the receiver, the output rate of the source is adjusted. Additive increase and multiplicative decrease (AIMD) model can achieve efficient congestion preventing when the accurate available bandwidth is estimated by the backward RTCP packet.

Paper Details

Date Published: 30 October 2009
PDF: 8 pages
Proc. SPIE 7497, MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 74970U (30 October 2009); doi: 10.1117/12.833696
Show Author Affiliations
Xuan Liang, China Shipbuilding Corp. (China)
Huosheng Xu, China Shipbuilding Corp. (China)
Xi Chen, China Shipbuilding Corp. (China)
Yu Fan, China Shipbuilding Corp. (China)

Published in SPIE Proceedings Vol. 7497:
MIPPR 2009: Medical Imaging, Parallel Processing of Images, and Optimization Techniques
Faxiong Zhang; Faxiong Zhang, Editor(s)

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