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ÇѱÛÁ¦¸ñ(Korean Title) |
ÀûÀÀÀû ºí·ÏŽ»ö±â¹ýÀ» Àû¿ëÇÑ Çâ»óµÈ H.264 ºÎÈ£È ¹æ¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Enhanced H.264 Coding Method Applied to Adaptive Block Search Algorithm |
ÀúÀÚ(Author) |
¹Ú°æ¼®
±è¹ÎÁØ
ÀüÀçÇö
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±è½ÂÈ£
Kyungseok Park
Minjun Kim
Jaehyun Jun
Jeonghyun Cho
Sungho Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 38 NO. 12 PP. 0663 ~ 0670 (2011. 12) |
Çѱ۳»¿ë (Korean Abstract) |
H.264/AVC´Â ÇÁ·ÎÆÄÀÏ¿¡ Á¤ÀǵǾî ÀÖ´Â °Í°ú °°ÀÌ ´Ù¸¥ Ç¥Áؾȵ麸´Ù ¿ì¼öÇÑ ¾ÐÃàÈ¿À²°ú ´Ù¾çÇÑ Æ¯¼ºµéÀ» °¡Áö°í ÀÖÁö¸¸, °¡º¯ºí·Ï Å©±â·Î ÃÖÀû ºÎÈ£È ¸ðµå¸¦ °áÁ¤ÇÏ¿© ¿òÁ÷ÀÓ ÃßÁ¤À» ½ÇÇàÇÔÀ¸·Î½á ºÎÈ£È ½Ã°£ÀÌ Áõ°¡ÇÏ°í º¹Àâµµ ¶ÇÇÑ ÈξÀ Áõ°¡ÇÏ°Ô µÇ¾ú´Ù. µû¶ó¼ º» ³í¹®¿¡¼´Â H.264 ºÎÈ£È °úÁ¤ Áß ÈÁú ¼Õ½ÇÀ» ÃÖ¼ÒÇÑÀ¸·Î ÁÙÀÌ¸é¼ ¼Ò¸ðµÇ´Â ½Ã°£À» ´ÜÃà½ÃÅ°´Â ÀûÀÀÀûÀ¸·Î ºí·Ï¸ðµå¿Í Ž»ö¿µ¿ªÀ» ¼³Á¤ÇÏ´Â ¹æ¹ýÀ» Á¦¾ÈÇÏ°íÀÚ ÇÑ´Ù. ½ÇÇè°á°ú ÈÁúÀÇ ¿È¿Í °è»ê·®À» ÃøÁ¤Çϱâ À§Çؼ PSNR°ú ¿òÁ÷ÀÓÃßÁ¤ ½Ã°£À» ¾Ë¾Æº¸¾Ò´Ù. ±× °á°ú, Á¦¾ÈÇÏ´Â ¹æ¹ýÀÌ ±âÁ¸ÀÇ H.264 Àü¿ª Ž»ö ±â¹ý°ú ºñ±³ÇÏ¿© ÈÁúÀº °ÅÀÇ ºñ½ÁÇÏ°Ô À¯ÁöÇÏ¸é¼ ½ÇÇèÇÑ ¸ðµç ¿µ»óÀÇ °æ¿ì ¸ðµç ÇÁ·¹ÀÓ¿¡¼ Æò±Õ 400~500ms Á¤µµÀÇ ºÎÈ£È ½Ã°£ÀÌ ´ÜÃàµÊÀ» º¸¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
H.264/AVC defined in profile has various characteristics and better coding efficiency than other standards. Its encoding time, However, has increased and complexity has also increased much more by deciding optimal coding mode as variable block size and carrying out motion estimation. This paper propose the method of adaptive block mode to reduce the loss time and setting up search range with reducing the video quality in the process of coding. We examined PSNR and motion estimation time in order to measure both degradation of video-qualityand computation. As a result, this method showed that average coding time is shortened as 400.500ms in every frame in the case of all experimented videos, keeping video quality nearly similar, compared to existing full search algorithm.
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Å°¿öµå(Keyword) |
¿òÁ÷ÀÓÃßÁ¤
ºí·Ï¸ðµå
Ž»ö¿µ¿ª
H.264/AVC
Motion Estimation
Block Mode
Search Range
PSNR
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