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Architecture & Urban Research Institute

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±â»ç¸í µî»ê·Î ŽÁö¸¦ À§ÇÑ KOMPSAT ¿µ»óÀÇ È°¿ë°¡´É¼º / Applicability for Detecting Trails by Using KOMPSAT Imagery
ÀúÀÚ¸í ¹èÁø¼ö(Jinsu Bae) ; ÀÓÁ¾¼­(Jongseo Yim) ; ½Å¿µÈ£(Young Ho Shin)
¹ßÇà»ç ´ëÇÑÁö¸®ÇÐȸ
¼ö·Ï»çÇ× ´ëÇÑÁö¸®ÇÐȸÁö , Vol.50 No.6(2015-12)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(607) ÃÑÆäÀÌÁö(13)
ISSN 1225-6633
ÁÖÁ¦ºÐ·ù µµ½Ã
ÁÖÁ¦¾î ¿ø°ÝŽ»ç ; µî»ê·Î ŽÁö ; ¾Æ¸®¶ûÀ§¼º ; °´Ã¼ ±â¹Ý ºÐ¼® ; Á¤È®¼º ; ¿ÏÀü¼º ; remote sensing ; trail detection ; KOMPSAT ; object-based analysis ; correctness ; completeness
¿ä¾à1 »êÁö¿¡¼­ÀÇ µî»ê·Î¿¡ ´ëÇÑ ÇöȲÆľÇÀº ÀûÀýÇÑ °ü¸®¹æ¾ÈÀ» µµÃâÇÏ´Â µ¥ ÀÖ¾î Áß¿äÇÑ ¿ä¼ÒÀÌ´Ù. ÀÌ ¿¬±¸¿¡¼­´Â µî»ê·Î ŽÁö °á°úÀÇ È°¿ë°¡´É¼º Æò°¡¸¦ ÅëÇØ µî»ê·ÎÀÇ ÇöȲ ÆľÇÀ» À§ÇÑ KOMPSAT ¿µ»óÀÇ È°¿ë ¹æ¾ÈÀ» ¸ð»öÇÏ¿´´Ù. KOMPSAT ¿µ»ó Áß¿¡¼­ ¼­·Î ´Ù¸¥ °ø°£Çػ󵵸¦ °®´Â K2¿Í K3 ¿µ»óÀ» ¼±ÅÃÇÏ¿´´Ù. °¢ ¿µ»ó¿¡ ´ëÇØ NDVI¿Í SAVI ¹× SC µîÀÇ ¿µ»óó¸® ÀڷḦ ±¸ÃàÇÏ¿´À¸¸ç, ÀÌÈÄ °´Ã¼ ±â¹Ý ºÐ¼®°ú ³×Æ®¿öÅ©ºÐ¼®À» ÅëÇØ µî»ê·Î ŽÁö¸¦ ¼öÇàÇÏ¿´´Ù. ŽÁöµÈ °á°ú¸¦ Åä´ë·Î ´Ù¾çÇÑ Æò°¡ÁöÇ¥¸¦ ÅëÇØ Á¤·®ÀûÀ¸·Î Æò°¡ÇÏ¿´´Ù. ŽÁö¿¡ »ç¿ëµÈ ¿µ»ó°ú ÀÌÈÄ ºÐ¼®ÀýÂ÷¿¡ µû¶ó Æò°¡ÁöÇ¥´Â Â÷ÀÌ°¡ ³ªÅ¸³µ´Ù. K3 ¿µ»ó¿¡ SC¸¦ È°¿ëÇÑ °æ¿ì¿¡ Æò°¡ÁöÇ¥µéÀÌ °¡Àå ³ô°Ô ³ªÅ¸³µÀ¸¸ç(Á¤È®¼º 0.44, ¿ÏÀü¼º 0.54, FÃøÁ¤Ä¡ 0.49, ÀÚÄ«µå °è¼ö 0.32), ¿µ»óó¸® °á°ú ÀÚ·á Áß SC¸¦ È°¿ëÇÑ °æ¿ì¿Í Çػ󵵰¡ ³ôÀº K3 ¿µ»óÀ» È°¿ëÇÑ °æ¿ì ³ôÀº Æò°¡ÁöÇ¥µéÀÌ µµÃâµÇ´Â °æÇâÀÌ ÀÖ¾ú´Ù. Àü¹ÝÀûÀ¸·Î ŽÁö °á°ú¿¡ ´ëÇÑ Æò°¡ÁöÇ¥µéÀº ³ôÁö ¾Ê¾Æ KOMPSAT ¿µ»ó¸¸À» È°¿ëÇØ µî»ê·Î ŽÁö¸¦ ÇÏ´Â °ÍÀº ÇÑ°è°¡ Á¸ÀçÇÏÁö¸¸, ÁÖ±âÀûÀÎ ÀÚ·áÀÇ ÃàÀû ¿ëÀ̼º°ú ºñ¿ëÈ¿À²¼ºÀÇ Ãø¸éÀ» °í·ÁÇØ º¼ ¶§, µî»ê·Î ÇöȲ ÆľÇÀ» À§ÇÑ ´Ù¸¥ ¹æ¹ýµé°ú ÇÔ²² È°¿ëµÈ´Ù¸é ÃæºÐÈ÷ °¡Ä¡°¡ ÀÖ´Ù°í ÆǴܵȴÙ
¿ä¾à2 It is important to detect trails accurately for finding a proper management. We examined the applicability of KOMPSAT imagery to detect trails and found that it could be an efficient alternative to track trails correctly. We selected K2 and K3 imagery with different spatial resolution. Then, we processed each imagery to get NDVI, SAVI, and SC data. And then, we identified trails by object-based analysis and network analysis. Finally, we evaluated the potential trails with F-measurement and Jaccard coefficient which are based on correctness and completeness. The results show that the applicability is quite different in each case. Among them, especially the SC data with K3 shows the most highest value; correctness of detecting legal trails is 0.44 and completeness of that is 0.54. F-measurement and Jaccard coefficient are 0.49 and 0.32. In general, although there is a limit in detecting trails by using only KOMPSAT imagery, the usefulness of KOMPSAT imagery can be a higher considering its cost efficiency and availability of acquiring periodic data.
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