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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö B : ¼ÒÇÁÆ®¿þ¾î ¹× ÀÀ¿ë

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ÇѱÛÁ¦¸ñ(Korean Title) ÀûÀÀÀû ºí·ÏŽ»ö±â¹ýÀ» Àû¿ëÇÑ Çâ»óµÈ H.264 ºÎȣȭ ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) Enhanced H.264 Coding Method Applied to Adaptive Block Search Algorithm
ÀúÀÚ(Author) ¹Ú°æ¼®   ±è¹ÎÁØ   ÀüÀçÇö   Á¶Á¤Çö   ±è½ÂÈ£   Kyungseok Park   Minjun Kim   Jaehyun Jun   Jeonghyun Cho   Sungho Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 38 NO. 12 PP. 0663 ~ 0670 (2011. 12)
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(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 ºÎȣȭ ¸ðµå¸¦ °áÁ¤ÇÏ¿© ¿òÁ÷ÀÓ ÃßÁ¤À» ½ÇÇàÇÔÀ¸·Î½á ºÎȣȭ ½Ã°£ÀÌ Áõ°¡ÇÏ°í º¹Àâµµ ¶ÇÇÑ ÈξÀ Áõ°¡ÇÏ°Ô µÇ¾ú´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â H.264 ºÎȣȭ °úÁ¤ Áß È­Áú ¼Õ½ÇÀ» ÃÖ¼ÒÇÑÀ¸·Î ÁÙÀ̸鼭 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¯ÁöÇϸ鼭 ½ÇÇèÇÑ ¸ðµç ¿µ»óÀÇ °æ¿ì ¸ðµç ÇÁ·¹ÀÓ¿¡¼­ Æò±Õ 400~500ms Á¤µµÀÇ ºÎȣȭ ½Ã°£ÀÌ ´ÜÃàµÊÀ» º¸¿´´Ù.
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(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.
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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