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Proceedings Paper

Duplicate video system using alternate temporal subsampling
Author(s): Cheul-hee Hahm; Jae S. Lim
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Paper Abstract

In this paper, we propose a new method to improve the performance of a duplicate video transmission system. The proposed method is based on an alternate temporal sub-sampling approach, which is to transmit the encoded even-numbered and odd-numbered pictures through separate channels. At the receiver, the decoded pictures from both channels are combined by alternately choosing one from each channel. The proposed method uses the full capacity of both regular and backup channels for failure-free video transmission. Experimental results show that the proposed alternate temporal sub-sampling method gives about 1.0 to approximately 4.0 dB improvements in PSNR over the conventional simulcast one at the bit rates of 2 to approximately 15 Mbps/channel for failure-free video transmission.

Paper Details

Date Published: 28 December 2000
PDF: 8 pages
Proc. SPIE 4115, Applications of Digital Image Processing XXIII, (28 December 2000); doi: 10.1117/12.411599
Show Author Affiliations
Cheul-hee Hahm, Massachusetts Institute of Technology (United States)
Jae S. Lim, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 4115:
Applications of Digital Image Processing XXIII
Andrew G. Tescher, Editor(s)

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