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Improvement to Video Display Time Delay when TV Channel switching in Variable Bit Rate Mode of Terrestrial MMS
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 Title & Authors
Improvement to Video Display Time Delay when TV Channel switching in Variable Bit Rate Mode of Terrestrial MMS
Park, Sung-hwan; Chang, Hae-rang; Jeon, Hyoung-joon; Kwon, Soon-chul; Lee, Seung-hyun;
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 Abstract
EBS started 2HD MMS experimental broadcasting for the first time in Korea on Feb. 11, 2015. It uses the picture compression technique based on MPEG-2 CODEC, and applies the result of the experiment about variable bit rates and changes according to the scanning types, 1080i and 720p. But when changing channels, the delay in displaying picture occurs because of the operation of the variable GOP on MMS broadcasting, which optimizes image quality by application variable bit rates. In this study, verified the relationship between the decoding time of I frames and the GOP set in the encoding step by experimenting and analyzing ON-AIR TS. By using the verification data and adjusts the Encoder GOP parameters, improved the different video display time delays according to the scanning mode 1080i and 720p.
 Keywords
MMS(Multi Mode Service);Terrestial Multicasting;VBR;MPEG-2 CODEC;GOP Layer;
 Language
Korean
 Cited by
 References
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