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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document : 9 / 22 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) UHD ½ºÆ®¸®¹Ö ¼­ºñ½ºÀÇ QoE Çâ»óÀ» À§ÇÑ VBR ÄÜÅÙÃ÷ Ư¼º ±â¹ÝÀÇ Ç°Áú ÀûÀÀ ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Quality Adaptation Scheme based on VBR Content Characteristics to Improve QoE of UHD Streaming Service
ÀúÀÚ(Author) ±è¹Î¼ö   ±èÈñ±¤   Á¤±¤¼ö   Minsu Kim   Heekwang Kim   Kwangsue Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 45 NO. 08 PP. 0856 ~ 0865 (2018. 08)
Çѱ۳»¿ë
(Korean Abstract)
³×Æ®¿öÅ©ÀÇ ¹ßÀü°ú ½º¸¶Æ® ±â±âÀÇ º¸±ÞÀ¸·Î UHD(Ultra High Definition ºñµð¿ÀÀÇ ¼ö¿ä°¡ Áõ°¡Çϸ鼭 HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö(HTTP Adaptive StreamingÀÌ ÁÖ¸ñ¹Þ°í ÀÖ´Ù. ±âÁ¸ Ç°Áú ÀûÀÀ ±â¹ýÀº VBR(Variable Bit Rate ÄÜÅÙÃ÷ Ư¼ºÀ» °í·ÁÇÏÁö ¾ÊÀº ´ë¿ªÆø ÃøÁ¤°ú ÃøÁ¤µÈ ´ë¿ªÆøÀ̳ª ¹öÆÛ Á¡À¯·®¸¸À» ÀÌ¿ëÇÑ Ç°Áú ¼±ÅÃÀ¸·Î ÀÎÇØ QoE(Quality of Experience°¡ ÀúÇϵǴ ¹®Á¦°¡ ÀÖ´Ù. º» ³í¹®¿¡¼­´Â UHD ½ºÆ®¸®¹Ö ¼­ºñ½ºÀÇ QoE Çâ»óÀ» À§ÇÑ VBR ÄÜÅÙÃ÷ Ư¼º ±â¹ÝÀÇ Ç°Áú ÀûÀÀ ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀº VBR ÄÜÅÙÃ÷ Ư¼ºÀ» °í·ÁÇØ ´ë¿ªÆøÀ» ÃøÁ¤ÇÑ´Ù. ¿äûÇÒ Ç°ÁúÀº ¹öÆÛ Á¡À¯·®ÀÇ º¯È­¸¦ ¹Ý¿µÇÑ Ç°Áú ÀûÀÀ ±¸°£À» ±â¹ÝÀ¸·Î ¼±ÅÃÇÔÀ¸·Î½á Æò±Õ Ç°ÁúÀ» ³ôÀÌ°í ºÒÇÊ¿äÇÑ Ç°Áú º¯°æÀ» ÃÖ¼ÒÈ­ÇÑ´Ù. ½ÇÇè °á°ú Á¦¾ÈÇÏ´Â ±â¹ýÀÌ ±âÁ¸ ±â¹ýµéº¸´Ù ³ôÀº Æò±Õ Ç°Áú°ú ÀûÀº Ç°Áú º¯°æÀ¸·Î QoE¸¦ Çâ»ó½ÃÅ°´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
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(English Abstract)
With the development of networks and the spread of smart devices, the demand for UHD (Ultra High Definition video is increasing, and HTTP Adaptive Streaming is attracting attention. The existing quality adaptation scheme has a problem, in that quality of experience (QoE degrades because of bandwidth measurement that does not take into consideration VBR (Variable Bit Rate content characteristics and quality selection using only measured bandwidth or buffer occupancy. In this paper, we propose a quality adaptation scheme based on VBR content characteristics to improve the QoE of UHD streaming service. The proposed scheme measures the bandwidth by considering the VBR content characteristics. The requested quality is selected based on the quality adaptation interval reflecting the change in the buffer occupancy, thereby increasing the average quality and minimizing unnecessary quality change. Experimental results show that the proposed scheme improves QoE with higher average quality and less quality change than do existing schemes.
Å°¿öµå(Keyword) HTTP ÀûÀÀÀû ½ºÆ®¸®¹Ö   UHD ºñµð¿À   VBR   QoE   HTTP adaptive streaming   UHD video   VBR   QoE  
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