Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
°ß½ÇÇÑ DTV ¿µ»ó Àü¼ÛÀ» À§ÇØ LSB ºÎȣȸ¦ ÀÌ¿ëÇÑ MPEG-2 Çì·¯ Á¤º¸ÀÇ ¿À·ù º¹¿ø ¹æ¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Error Resilience Method of MPEG-2 Header Parameters by using LSB Coding for Robust DTV Video Transmission |
ÀúÀÚ(Author) |
ÀÓűÕ
ÀÌ»óÇÐ
Tae-gyun Lim
Sang-hak Lee
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¿ø¹®¼ö·Ïó(Citation) |
VOL 09 NO. 05 PP. 1019 ~ 1024 (2005. 08) |
Çѱ۳»¿ë (Korean Abstract) |
MPEG-2·Î ºÎÈ£È µÈ ¿µ»ó¿¡¼ ¹ß»ýÇÏ´Â Àü¼Û ¿À·ù´Â ÈÁúÀÇ ¿È¸¦ °¡Á®¿À°í, ½Ã°ø°£ÀûÀ¸·Î ¿À·ù¸¦ ÀüÆĽÃŲ´Ù. ƯÈ÷ ºñµð¿À ºñÆ®¿¿¡¼ Çì´õ Á¤º¸ÀÇ ¿À·ù´Â º¹È£È °úÁ¤ Àüü¿¡ ¿µÇâÀ» ¹ÌÄ¡¹Ç·Î µ¥ÀÌÅÍ Á¤º¸ÀÇ ¿À·ù¿Í ´Þ¸® Àüü ¿µ»ó¿¡ ½É°¢ÇÑ ÈÁúÀÇ ¿È¸¦ ÀÏÀ¸Å³ ¼ö ÀÖ´Ù. µû¶ó¼ Çì´õ Á¤º¸¿¡¼ÀÇ ¿À·ù¸¦ º¹¿øÇÏ´Â °ÍÀº µ¥ÀÌÅÍ Á¤º¸¿¡¼ ¿À·ù¸¦ º¹¿øÇÏ´Â °Íº¸´Ù ´õ Áß¿äÇÏ´Ù. º» ³í¹®¿¡¼´Â LSB(least significant bit) ºÎȣȸ¦ ÀÌ¿ëÇÏ¿© Çì´õ Á¤º¸¸¦ ¾çÀÚÈ µÈ DCT(discrete cosine transform) °è¼ö¿¡ ¹Ýº¹ÀûÀ¸·Î »ðÀÔÇÏ¿© Àü¼ÛÇÔÀ¸·Î½á MPEG-2ÀÇ ½ÅÅýº ±¸Á¶ ±×´ë·Î À¯ÁöÇÏ¸é¼ Çì´õ Á¤º¸ÀÇ ¿À·ù¸¦ º¹¿øÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
MPEG-2 achieves high compression radio, by exploiting the temporal and spatial correlations in real image sequence, using the motion compensated prediction and the transform coding, respectively. However, as the image sequence is more highly compressed, the encoded bitstream becomes more vulnerable to transmission error over the noisy channels. Furthermore, er°³rs in the headers are fatal to decoding processes, because the header parameters in the video coding standard include a lot of important information connected to the syntax elements, fables, and decoding process. In this paper, we propose a new error resilience method using LSB coding for header parameters in MPEG-2 coded video transmissions. The experimental results for football and susie video sequence demonstrate that the proposed error resilience method for header parameters in MPEG-2 bitstream has good performance.
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Å°¿öµå(Keyword) |
MPEG-2
Data Hiding
LSB Coding
Error Resilience
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ÆÄÀÏ÷ºÎ |
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