DocumentCode :
3317502
Title :
A DSP-based platform for wireless video compression
Author :
Murphy, Patrick ; Bharadwaj, Vinay ; Welsh, Erik ; Frantz, J. Patrick
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Volume :
2
fYear :
2002
fDate :
17-21 Nov. 2002
Firstpage :
1754
Abstract :
With the exponential growth of wireless voice markets, demand for wireless video services is soon to follow. However, bandwidth limited wireless channels coupled with mobility issues pose a great challenge in the hardware, software and algorithm design of communication systems. Raw video transmission is a high bandwidth application due to its spatial and temporal redundancies. Hence effective video communication over wireless channels calls for intelligent video coding and protection schemes. Also, the real-time nature of video necessitates high performance hardware and efficient software. This paper describes a modular and standards-independent DSP-based testbed (Paladin) designed for real-time video communication over low-bandwidth channels. In particular, we demonstrate the real-time transmission of MPEG-4 video and JPEG2000 still images over the Bluetooth wireless standard. Such a demonstration has many potential applications. We have designed the testbed to explore the possibilities, demands, and challenges of real-time wireless video transmission. We have implemented the MPEG-4 and JPEG2000 source coding on two DSP platforms: a Texas Instruments (TI) TMS320C6211, and a TI TMS3206416.
Keywords :
Bluetooth; digital signal processing chips; image coding; multimedia communication; video codecs; video coding; Bluetooth wireless standard; DSP-based platform; DSP-based testbed; JPEG2000 still images; MPEG-4 video; Paladin; TI TMS3206416; TI TMS320C6211; high bandwidth application; intelligent video coding; protection schemes; raw video transmission; real-time video communication; spatial redundancies; video communication; wireless video compression; wireless voice markets; Application software; Bandwidth; Communication system software; Couplings; Hardware; MPEG 4 Standard; Software algorithms; Software design; Testing; Video compression;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN :
0-7803-7632-3
Type :
conf
DOI :
10.1109/GLOCOM.2002.1188499
Filename :
1188499
Link To Document :
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