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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 5 / 6 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ºÐ»ê ºñµð¿À ºÎȣȭ¿¡¼­ ºí·Ïº° ÀûÀÀÀû Ž»ö¿¡ ±âÃÊÇÑ ¹Ýº¹ÀûÀÎ º¸Á¶Á¤º¸ º¸Á¤±â¹ý
¿µ¹®Á¦¸ñ(English Title) An Iterative Side Information Refinement Based on Block-Adaptive Search in Distributed Video Coding
ÀúÀÚ(Author) ±èÁø¼ö   À±¸ùÇÑ   ±èÀç°ï   ¼­±¤´ö   Jin-soo Kim   Mong-han Yun   Jae-Gon Kim   Kwang-deok Seo  
¿ø¹®¼ö·Ïó(Citation) VOL 15 NO. 02 PP. 0355 ~ 0363 (2011. 02)
Çѱ۳»¿ë
(Korean Abstract)
ºÐ»ê ºñµð¿À ºÎȣȭ±â¹ý(DVC: Distributed Video Coding)ÀÇ ¼º´ÉÀ» °³¼±Çϱâ À§ÇÑ ÇÑ °¡ÁöÀÇ ¹æ¹ýÀ¸·Î¼­ º¸Á¶Á¤º¸¿¡ ´ëÇÑ ¹Ýº¹ÀûÀÎ º¸Á¤±â¹ý¿¡ ´ëÇÑ ¿¬±¸°¡ È°¹ßÈ÷ ÁøÇàµÇ°í ÀÖ´Ù. ±âÁ¸ÀÇ ´ëÇ¥ÀûÀÎ ¹Ýº¹ÀûÀÎ º¸Á¤±â¹ýÀ¸·Î¼­ º¹¿ø ·¹º§°ú º¸Á¶Á¤º¸ »çÀÌÀÇ °ü°è¸¦ ÀÌ¿ëÇÑ ±â¹ý ¶Ç´Â, ¿òÁ÷ÀÓ º¤ÅÍÀÇ ÇÊÅ͸µ¿¡ ±âÃÊÇÑ º¸Á¤±â¹ýÀÌ Á¦½ÃÇÏ°í ÀÖÀ¸³ª ¼º´É °³¼±Àº Á¦ÇÑÀûÀÌ´Ù. ±âÁ¸ ¹æ½ÄµéÀÇ ¼º´É Á¦ÇÑÀ» ±Øº¹Çϱâ À§ÇØ, º» ³í¹®¿¡¼­´Â, ¸ÕÀú, ÃʱâÀÇ º¸Á¶Á¤º¸ »ý¼º ½Ã¿¡ ºí·Ïº° ºñ¿ëÀ» ÃøÁ¤ÇÏ¿© ÀûÀÀÀû ¿òÁ÷ÀÓ º¸»óÀ» ¼öÇàÇÑ´Ù. ±×¸®°í ¼ö½ÅµÇ´Â ºñÆ® Ç÷¹ÀÎ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ºí·Ïº° ÀûÀÀÀû ¿¹Ãø ¸ðµå¸¦ »ç¿ëÇÔÀ¸·Î½á ºñ´ëĪÀûÀÎ ¹°Ã¼ÀÇ ¿òÁ÷ÀÓ º¸»ó¿¡ È¿°úÀûÀÎ ¹Ýº¹ÀûÀÎ º¸Á¤±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ¸ðÀǽÇÇèÀ» ÅëÇÏ¿© º» ³í¹®¿¡¼­ Á¦¾ÈµÈ º¸Á¤±â¹ýÀ» »ç¿ëÇÔÀ¸·Î½á ÃÖ´ë 0.2 dBÀÌ»óÀÇ ¼º´ÉÀ» °³¼±ÇÔÀ» º¸ÀδÙ.
¿µ¹®³»¿ë
(English Abstract)
Recently, as one of several methods to improve the performance of DVC(Distributed Video Coding) system, many research works are focusing on the iterative refinement of side information. Most of the conventional techniques are mainly based on the relationship between the reconstruction level and side information, or the vector median filtering of motion vectors, but, their performance improvements are restricted. In order to overcome the performance limit of the conventional schemes, in this paper, a side information generation scheme is designed by measuring the block-cost estimation. Then, by adaptively selecting the compensation mode using the received bit-plane information, we propose a block-adaptive iterative refinement which is efficient for non-symmetric moving objects. Computer simulations show that, by using the proposed refinement method, the performance can be improved up to 0.2 dB in rate-distortion.
Å°¿öµå(Keyword) ºÐ»êºñµð¿À   ¹Ýº¹Àû º¸Á¤   º¸Á¶Á¤º¸   ÀûÀÀÀû ¿òÁ÷ÀÓ º¸»ó   DVC   Iterative Refinement   Side Information   Adaptive Motion Compensation  
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