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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
°Àμº Çâ»óÀ» À§ÇÑ º¤ÅÍ ¸Ê ¿öÅ͸¶Å· ¾Ë°í¸®ÁòÀÇ Àû¿ë°ú Æò°¡ |
¿µ¹®Á¦¸ñ(English Title) |
Application and Evaluation of Vector Map Watermarking Algorithm for Robustness Enhancement |
ÀúÀÚ(Author) |
¿ø¼º¹Î
¹Ú¼öÈ«
SungMin Won
SooHong Park
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¿ø¹®¼ö·Ïó(Citation) |
VOL 21 NO. 03 PP. 0031 ~ 0043 (2013. 06) |
Çѱ۳»¿ë (Korean Abstract) |
º¤ÅÍ ¸Ê µ¥ÀÌÅÍ´Â ´Ù¸¥ ¸ÖƼ¹Ìµð¾î¿¡ ºñÇÏ¿© ³ôÀº °¡Ä¡¸¦ Áö´Ô¿¡µµ ºÒ±¸ÇÏ°í µ¥ÀÌÅÍÀÇ ºÒ¹ýº¹Á¦¿Í ÀúÀ۱ǿ¡ ´ëÇÑ Àνİú ¿¬±¸´Â ¹ÌºñÇÑ ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼´Â º¤ÅÍ ¸Ê µ¥ÀÌÅÍÀÇ ÀúÀå ±¸Á¶¸¦ °í·ÁÇÏ¿© ´Ù¾çÇÑ °ø°Ý¿¡ ´ëÇÏ¿© °ÀÎÇÑ ¿öÅ͸¶Å· ±â¹ýÀ» Á¦¾ÈÇÏ°íÀÚ ÇÑ´Ù. ¿öÅ͸¶Å· ¾Ë°í¸®ÁòÀÇ ¼³°è¸¦ À§ÇÏ¿© ¿©¼¸ °¡Áö Á¢±Ù ¹æ¹ýÀ» °í¾ÈÇÏ¿´´Ù(Æ÷ÀÎÆ® ±â¹ÝÀÇ Á¢±Ù, ÃÖ¼Ò µÑ·¹ »ï°¢Çü ±¸¼º, ±æÀÌ ºñÀ²¿¡ ´ëÇÑ ¿öÅ͸¶Å© »ðÀÔ, ¿öÅ͸¶Å© À̹ÌÁöÀÇ À§Ä¡¸¦ ÂüÁ¶, ±×·ìÈ, ÀϹæÇÔ¼öÀÇ »ç¿ë). Á¦¾È ¹æ¹ýÀº ÀÔ·Â È¿°ú¼º, ¿À°ËÃâ·ü, Ãæ½ÇµµÀÇ Æ¯¼ºÀ» ¸¸Á·ÇÏ°í °Àμº Ãø¸é¿¡¼ ³ëÀÌÁî ÷°¡¸¦ Á¦¿ÜÇÑ ¸ðµç °ø°Ý¿¡¼ °ÀÎÇÔÀ» º¸¿´´Ù. ¶ÇÇÑ Á¦¾È ¹æ¹ýÀº ¿øº» µ¥ÀÌÅÍ°¡ ÇÊ¿ä ¾ø´Â Blind ¹æ½ÄÀ̸ç, µ¥ÀÌÅÍ ÀÇÁ¸ÀûÀÌÁö ¾ÊÀº ÀåÁ¡À» °®´Â´Ù. Ãß°¡·Î ´Ü¼øÈ °ø°Ý¿¡ ´ëÇÏ¿© ´Ü¼øÈ Á¤µµ°¡ ½ÉÇØÁü¿¡ µû¶ó °ÀμºÀÌ ÀúÇϵǴ ¼±Çà ¿¬±¸ÀÇ ¹®Á¦Á¡À» ÇØ°áÇÒ ¼ö ÀÖ¾ú´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Although the vector map data possesses much higher values than other types of
multimedia, the data copyright and the protection against illegal duplication are still far away from the attention. This paper proposes a novel watermarking technique which is both robust to diverse attacks and optimized to a vector map structure. Six approaches are proposed for the design of the watermarking algorithm: point-based approach, building a minimum perimeter triangle, watermark embedding in the length ratio, referencing to the pixel position of the watermark image, grouping, and using the one-way function. Our method preserves the characteristics of watermarking such as embedding effectiveness, fidelity, and false positive rate, while maintaining robustness to all types of attack except a noise attack. Furthermore, our method is a blind scheme in which robustness is independent of the map data. Finally, our method provides a solution to the challenging issue of degraded robustness under severe simplification attacks.
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Å°¿öµå(Keyword) |
µðÁöÅÐ ¿öÅ͸¶Å·
º¤ÅÍ ¸Ê
ÃÖ¼Ò µÑ·¹ »ï°¢Çü
ÀϹæ ÇÔ¼ö
digital watermarking
vector map data
minimum perimeter triangles
one-way function
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ÆÄÀÏ÷ºÎ |
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