Ç¥ÁØÈ­ Âü¿©¾È³»

TTAÀÇ Ç¥ÁØÇöȲ

Ȩ > Ç¥ÁØÈ­ °³¿ä > TTAÀÇ Ç¥ÁØÇöȲ

Ç¥ÁعøÈ£ TTAK.KO-10.1373 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2022-12-07 ÃÑÆäÀÌÁö 19
ÇѱÛÇ¥Áظí HEVC/H.265 ÄÚµ¦ ±â¹Ý ¿µ»ó ¾Ï¡¤º¹È£È­ ¹æ¹ý
¿µ¹®Ç¥Áظí HEVC/H.265 Codec-based Video Encryption/Decryption Method
Çѱ۳»¿ë¿ä¾à ÀÌ Ç¥ÁØÀº ¼öÁýµÈ HEVC/H.265 ¿µ»ó¿¡ ´ëÇÏ¿© ÀÎÄÚµù ¹× µðÄÚµùµÇ´Â °úÁ¤¿¡¼­ ½Ç½Ã°£ ¿µ»ó ¾Ï¡¤º¹È£È­ ¹æ¹ýÀ» ±â¼úÇÑ´Ù. È¿À²ÀûÀÎ ¿µ»óÀÇ ¾ÐÃà ¹× ¾Ïȣȭ¸¦ À§ÇØ Å¸ÀÏ(Tile)±â¹Ý º´·Äó¸®¿Í °°Àº HEVC/H.265 ±â´ÉÀ» È°¿ëÇÏ¸ç ¾Ïȣȭ´Â ¾ÐÃà ¹× ¾Ïȣȭ °áÇÕ(joint compression and encryption) À¯Çü Áß ÇϳªÀÎ ¿£Æ®·ÎÇÇ ÀÎÄÚµù Áß ¾Ïȣȭ(encryption within entropy coding)¸¦ äÅÃÇÑ´Ù. ¶ÇÇÑ, ¿µ»ó ¾Ï¡¤º¹È£È­ ¿ä±¸»çÇ× ¹× ¼º´ÉÀ» °í·ÁÇÏ¿© ½Ã°¢Àû Ç°Áú¿¡ ¸¹Àº ¿µÇâÀ» ³¢Ä¡´Â ¸î¸î ±¸¹® ¿ä¼Ò(¿¹½Ã: Luma IPM(intra prediction mode), Chroma IPM, Residual value, Residual sign, MVD(motion vector difference) value, MVD sign)¸¦ ¼±ÅÃÀûÀ¸·Î ¾ÏȣȭÇÔÀ¸·Î½á ¿µ»óÀ» ºñ½Äº°È­ÇÑ´Ù. ÀÌÈÄ, ¾ÐÃࡤ¾ÏȣȭµÈ ¿µ»óÀ» ¿ªÃ³¸®(º¹È£È­ ¹× µðÄÚµù)ÇÏ¿© ¿ø·¡ÀÇ ¿µ»óÀ¸·Î º¹¿øÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à This standard describes a real-time video encryption/decryption method in encoding and decoding collected HEVC/H.265 video. For efficient video compression and encryption, HEVC/H.265 functions such as tile-based parallel processing are applied, and encryption within entropy coding among joint compression and encryption types is adopted. In addition, in consideration of video encryption/decryption requirements and performance, some syntax elements significantly influence visual quality(e.g. Luma IPM(intra prediction mode), Chroma IPM, Residual value, Residual sign, MVD(motion vector difference) value, MVD sign) are selectively encrypted and create de-identify the video. After that, the compressed and encrypted video is reverse-processed(decryption and decoding) to restore the original video.
±¹Á¦Ç¥ÁØ
°ü·ÃÆÄÀÏ TTAK_[1].KO-10.1373.pdf TTAK_[1].KO-10.1373.pdf            

ÀÌÀü
Ȧ·Î±×·¥ ±¤ÇÐ ¼ÒÀÚÀÇ È¸Àý È¿À² ÃøÁ¤ Áöħ
´ÙÀ½
½Ç°¨ µðÁöÅÐ ÈÞ¸Õ Ç°ÁúÆò°¡ ÇÁ·¹ÀÓ¿öÅ© - Á¦1ºÎ: Æò°¡ ¾ÆÅ°ÅØó¿Í Áú¹® ¸ñ·Ï