Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
Áö»óÆÄ DMB °íµµÈ¸Á¿¡¼ °èÃþ°£ Åë°èÀû Ư¼ºÀ» ÀÌ¿ëÇÑ ÅëÇÕ ºÎÈ£±â Á¦¾î |
¿µ¹®Á¦¸ñ(English Title) |
Aggregated Encoder Control Exploiting Interlayer Statistical Characteristics for Advanced Terrestrial-DMB |
ÀúÀÚ(Author) |
±èÁø¼ö
¹ÚÁ¾°©
¼±¤´ö
±èÀç°ï
Jin-soo Kim
Jong-kab Park
Kwang-deok Seo
Jae-Gon Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 13 NO. 08 PP. 1513 ~ 1526 (2009. 08) |
Çѱ۳»¿ë (Korean Abstract) |
½ºÄÉÀÏ·¯ºí ºÎÈ£È(SVC, Scalable Video Coding) ±â¹ýÀº ´Ù¾çÇÑ ¿¹Ãø ºÎÈ£±â¹ýÀ» ÅëÇÏ¿© Á¤º¸ÀÇ Áߺ¹¼ºÀ» Á¦°ÅÇÔÀ¸·Î½á ºÎÈ£È È¿À²À» °³¼±½Ãų ¼ö ÀÖÀ¸³ª ¸Å¿ì ¸¹Àº °è»ê·®À» ¿ä±¸ÇÏ´Â ¹®Á¦Á¡ÀÌ ÀÖ´Ù. ±âÁ¸ÀÇ Áö»óÆÄ-DMB (Terrestrial-DMB)ÀÇ ÈÁúÀ» °³¼±ÇÑ °íÇ°Áú Áö»óÆÄ-DMB (Advanced Terrestrial-DMB) ¼ºñ½ºÀÇ Ç¥ÁØÈ¿Í »ó¾÷ȸ¦ ÃËÁøÇϱâ À§Çؼ´Â ÀÌ ¹®Á¦¸¦ ¹Ýµå½Ã ±Øº¹ÇÒ Çʿ伺ÀÌ ÀÖ´Ù. À̸¦ À§ÇØ ¸ÕÀú, º» ³í¹®¿¡¼´Â ±âÁ¸ÀÇ °íÁ¤ ºñÆ®À² Á¦¾î ±â¹ýÀ» °³¼±ÇÑ ÅëÇÕ Á¦¾î ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ¸ðÀǽÇÇèÀ» ÅëÇÏ¿© Á¦¾ÈÇÑ ºñÆ®À² Á¦¾î¹æ½ÄÀº ±âÁ¸ÀÇ Á¦¾î ¹æ½Ä¿¡ ºñÇØ ÃÖ´ë 0.3dB±îÁö ¼º´É °³¼±À» ÀÌ·ê ¼ö ÀÖÀ½À» º¸ÀδÙ. ¶ÇÇÑ, Á¦¾ÈµÈ ÅëÇÕ Á¦¾î ±â¹ý¿¡ ±âÃÊÇÏ¿©, °èÃþ°£ÀÇ ºÎȣȸðµå¿Í ¾çÀÚÈ ÆĶó¹ÌÅÍÀÇ Åë°èÀû Ư¼ºÀ» ÀÌ¿ëÇÏ¿© ºÎÈ£È È¿À²À» ¿ì¼öÇÏ°Ô À¯ÁöÇÏ¸é¼ °è»ê·®À» ÁÙÀÏ ¼ö ÀÖ´Â ¹æ¾ÈÀ» Á¦¾ÈÇÑ´Ù. ¸ðÀǽÇÇèÀ» ÅëÇÏ¿© Á¦¾ÈÇÑ ¹æ½ÄÀº ÈÁú º¯È°¡ °ÅÀÇ ÃÊ·¡µÇÁö ¾Ê´Â ´ë½Å¿¡ °è»ê·®Àº ±âÁ¸ÀÇ ¹æ½Ä¿¡ ºñÇØ ÃÖ´ë 12%±îÁö ÁÙÀÏ ¼ö ÀÖÀ½À» º¸ÀδÙ.
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¿µ¹®³»¿ë (English Abstract) |
The SVC (Scalable Video Coding) scheme can be effectively used for reducing the redundancy and for improving the coding efficiency but, it requires very high computational complexities. In order to accelerate the successful standardization and commercialization of the Advanced Terrestrial-DMB service, it is necessary to overcome this problem. For this aim, in this paper, we propose an efficient aggregated encoder control algorithm, which shows better performances than the conventional control scheme. Computer simulation result shows that the proposed scheme performs about up to 0.3dB better than those of the conventional scheme. Additionally, based on this control scheme, we propose a fast mode decision method by constraining the redundant coding modes based on the statistical properties of the quantization parameter in the spatial scalable encoder. Through computer simulations, it is shown that the proposed control schemes reduce the heavy computational burden up to 12% compared to the conventional scheme, while keeping the objective visual quality very high.
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Å°¿öµå(Keyword) |
AT-DMB
SVC
Interlayer
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ÆÄÀÏ÷ºÎ |
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