Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
ÇѱÛÁ¦¸ñ(Korean Title) |
3Â÷¿ø µðÁöÅÐ ½Ã³×¸¶ÀÇ ½ºÅ×·¹¿À ¿µ»ó ¾ÐÃàÀ» À§ÇÑ MRBR±â¹ÝÀÇ JPEG2000 ÄÚµ¦ |
¿µ¹®Á¦¸ñ(English Title) |
MRBR-based JPEG2000 Codec for Stereoscopic Image Compression of 3-Dimensional Digital Cinema |
ÀúÀÚ(Author) |
¼¿µÈ£
½Å¿Ï¼ö
ÃÖÇöÁØ
À¯Áö»ó
±èµ¿¿í
Wan-Soo Sin
Young-Ho Seo
Hyun-Jun Choi
Dong-Wook Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 12 NO. 12 PP. 2146 ~ 2152 (2008. 12) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â 3Â÷¿ø µðÁöÅÐ ½Ã³×¸¶ ¿µ»óÀÇ ¾ÐÃàÀ» À§ÇÏ¿© ´ÙÇØ»óµµ ±â¹Ý ·»´õ¸µ(MultiResolution-based Rendering, MRBR) ±â¹ýÀ» ÀÌ¿ëÇÑ JPEG2000 ¾ÐÃàÄÚµ¦ ±¸Á¶¿¡ ´ëÇÏ¿© Á¦¾ÈÇÏ¿´´Ù. ½ºÅ×·¹¿À ¿µ»ó¿¡ ÀÌ»ê ¿þÀÌºí¸´ º¯È¯(discrete wavelet transform, DWT)°ú ´ÙÇØ»óµµÀÇ ¿þÀÌºí¸´ ¿µ¿ª¿¡¼ ½ºÅ×·¹¿À Á¤ÇÕ(stereo matching)±â¹ýÀ» Àû¿ëÇÏ¿© º¯ÀÌÁ¤º¸¸¦ ÃßÃâÇÏ°í ±âÁØ¿µ»ó°ú °°ÀÌ Àü¼ÛÇÑ´Ù. ¶ÇÇÑ ÃßÃâµÈ ´Ù¸¥ ½ÃÁ¡ÀÇ ¿µ»óÀº ºñÆó»ö¿µ¿ªÀ¸·Î ÀÎÇÑ ÈÁú¿È°¡ ¹ß»ýÇϹǷΠÀ̸¦ º¸»óÇϱâ À§ÇÏ¿© ºñÆó»ö¿µ¿ªÀÌ Æ÷ÇÔµÈ ¿ø ÁÖÆļöÁ¤º¸¿Í ´ë»ó ½ÃÁ¡¿¡¼ ÁÖÆļöÁ¤º¸ÀÇ Â÷À̸¦ °°ÀÌ Àü¼ÛÇÑ´Ù. º¯ÀÌÁ¤º¸´Â º¯ÀÌ°ø°£¿¡¼ÀÇ µ¿Àû°èȹ¹ý(dynamic programming)À» ÀÌ¿ëÇÏ¿© ÃßÃâÇÏ¿´´Ù. DWTÀÇ Æ¯¼º»ó »óÀ§ ºÎ´ë¿ªÀº ÇÏÀ§ ºÎ´ë¿ª°ú ³ôÀº »ó°ü¼ºÀ» °®´Â´Ù. µû¶ó¼ coarse-to-fine ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© »óÀ§ ºÎ´ë¿ª¿¡¼ ¾ò¾îÁø º¯ÀÌÁ¤º¸¸¦ ÇÏÀ§ ºÎ´ë¿ª¿¡ Àû¿ëÇÏ¿© Ž»ö¿µ¿ªÀ» Á¦ÇÑÇÔÀ¸·Î½á ÀϹÝÀûÀÎ µ¿Àû°èȹ¹ý¿¡ ºñÇÏ¿© ¿¬»ê·®À» ´ÜÃà½ÃÄ×À¸¸ç Á¤È®µµ¸¦ Çâ»ó½ÃÄ×´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In In this paper, we proposed a new JPEG2000 codec using multiresolution-based rendering (MRBR) technique for video compression of 3-dimensional digital cinema. We introduced discrete wavelet transform (DWT) for stereoscopic image and stereo matching technique in the wavelet domain. The disparity was extracted using stereo matching and transmitted with the reference (left) image. Since the generated right image was degraded by the occlusion region, the residual image which is generated from difference between the original right image and the generated one was transmitted at the same time. The disparity data was extracted using the dynamic programming method in the disparity domain. There is high correlation between the higher and lower subbands. Therefore we decreased the calculation amount and enhanced accuracy by restricting the search window and applying the disparity information generated from higher subband.
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Å°¿öµå(Keyword) |
depth-image
streoscopic
JPEG2000
multiresolution-based rendering
3D digital cinema
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