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Ç¥ÁعøÈ£ | TTAK.KO-10.1570 | ±¸ Ç¥ÁعøÈ£ | |||||||||||||||
Á¦°³Á¤ÀÏ | 2025-06-27 | ÃÑ ÆäÀÌÁö | 19 | ||||||||||||||
ÇÑ±Û Ç¥Áظí | HEVC/H.265 ÄÚµ¦ ±â¹Ý ¿µ»ó °ü½É ¿µ¿ª ¾Ï¡¤º¹È£È Àû¿ë ¹æ¹ý | ||||||||||||||||
¿µ¹® Ç¥Áظí | Application Method of Encryption and Decryption for Region of Interest in HEVC/H.265 Codec-based Video | ||||||||||||||||
ÇÑ±Û ³»¿ë¿ä¾à | º» Ç¥ÁØÀº HEVC/H.265 ÄÚµ¦ ¿µ»ó ³»ÀÇ °ü½É ¿µ¿ª ¾ÏÈ£È ¹× º¹È£È¸¦ À§ÇÑ ¼¼ °¡Áö Àû¿ë ¹æ¹ýÀ» ±â¼úÇÑ´Ù. ¿µ»ó ¾Ïȣȴ ¾ÏÈ£È ½ÃÁ¡¿¡ µû¶ó ¾ÐÃà Àü ¾ÏÈ£È, ¾ÐÃà ÈÄ ¾ÏÈ£È, ¾ÐÃà Áß ¾ÏȣȷΠºÐ·ùµÈ´Ù. º» Ç¥ÁØÀº ¾Ïȣȿ¡ ÇÊ¿äÇÑ °è»ê ºñ¿ëÀ» ³·Ãß°í, ¿µ»óÀÇ È°¿ëµµ¸¦ ³ôÀÏ ¼ö ÀÖ´Â ¿µ»ó ¾ÐÃà Áß ´Ü°è¿¡¼ °ü½É ¿µ¿ª ¾Ïȣȸ¦ ¼öÇàÇÏ´Â ¹æ¹ýÀ» ±â¼úÇÑ´Ù. HEVC/H.265´Â È¿À²ÀûÀÎ ÀÎÄÚµùÀ» À§ÇØ ¿µ»óÀ» ÀÛÀº ´ÜÀ§·Î ºÐÇÒÇÏ¿© ÀÎÄÚµùÇÑ´Ù. ¿µ»ó °ü½É ¿µ¿ª ¾Ï¡¤º¹È£È ±â¼úÀº ¾ÏÈ£È ´ÜÀ§¿¡ µû¶ó ŸÀÏ(tile), CTU(coding tree unit), CU(coding unit) ±â¹Ý ¾Ï¡¤º¹È£È ±â¼ú·Î ºÐ·ùÇÒ ¼ö ÀÖ´Ù. ¿µ»ó °ü½É ¿µ¿ª ¾Ïȣȸ¦ À§ÇØ °´Ã¼ ŽÁö ¾Ë°í¸®ÁòÀ» ÅëÇØ °ü½É ¿µ¿ªÀ» ½Äº°Çϰí, ¾ÏȣȵǴ ´ÜÀ§¿¡ µû¶ó ¾Ï¡¤º¹È£È°¡ ÇÊ¿äÇÑ Å¸ÀÏ, CTU, CU¸¦ ½Äº°ÇÑ´Ù. ¿µ»ó °ü½É ¿µ¿ª ¾Ï¡¤º¹È£È ¿ä±¸»çÇ× ¹× ¼º´ÉÀ» °í·ÁÇÏ¿© È¸é °£ ¿¹Ãø ¹üÀ§¸¦ Á¦ÇÑÇϰí IPM(intra prediction mode), QTC(quantized transform coefficient), QTC sign, MVD(motion vector difference), MVD sign°ú °°Àº ±¸¹® ¿ä¼Ò¸¦ ¾Ï¡¤º¹È£ÈÇÑ´Ù. | ||||||||||||||||
¿µ¹® ³»¿ë¿ä¾à |
This standard outlines three distinct methods for encrypting and decrypting regions of interest (ROI) within HEVC/H.265 codec video. Video encryption techniques can be broadly classified into pre-compression encryption, post-compression encryption, and in-compression encryption. This standard specifically focuses on in-compression encryption, where ROI encryption is applied during the video compression process. This approach reduces computational overhead while maintaining video usability.
HEVC/H.265 enhances encoding efficiency by partitioning video frames into smaller units. Accordingly, video ROI encryption and decryption methods are categorized based on the encryption unit, which can be a tile, coding tree unit (CTU), or coding unit (CU). To implement ROI encryption, an object detection algorithm is employed to identify regions of interest, and depending on the encryption unit, the corresponding tiles, CTUs, or CUs are selected for encryption and decryption. |
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°ü·Ã IPR È®¾à¼ | Á¢¼öµÈ IPR È®¾à¼ ¾øÀ½ | ||||||||||||||||
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