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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö A : ½Ã½ºÅÛ ¹× ÀÌ·Ð

Á¤º¸°úÇÐȸ ³í¹®Áö A : ½Ã½ºÅÛ ¹× ÀÌ·Ð

Current Result Document : 106 / 128 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) °¡»ó ´ëÀå³»½Ã°æÀ» À§ÇÑ °¡½Ã¼ºÀ» ÀÌ¿ëÇÑ ÀÚµ¿ °æ·Î »ý¼º¹ý
¿µ¹®Á¦¸ñ(English Title) Visibility-based Automatic Path Generation Method for Virtual Colonoscopy
ÀúÀÚ(Author) ÀÌÁ¤Áø   °­¹®±¸   Á¶¸í¼ö   ½Å¿µ±æ  
¿ø¹®¼ö·Ïó(Citation) VOL 32 NO. 10 PP. 0530 ~ 0540 (2005. 10)
Çѱ۳»¿ë
(Korean Abstract)
°¡»ó ´ëÀå³»½Ã°æ(virtual colonoscopy)Àº ÄÄÇ»ÅÍ´ÜÃþÃÔ¿µ(computed tomography) ¿µ»óÀ¸·ÎºÎÅÍ ´ëÀåÀÇ Çü»óÀ» ÀÔüÀûÀ¸·Î À籸¼ºÇÏ¿© ´ëÀå ³»ºÎÀÇ Á¾¾çÀ» ºü¸£°í, ½±°Ô Áø´ÜÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ¸·Î¼­, ±âÁ¸ÀÇ Ä§½ÀÀûÀÎ ´ëÀå Áø´Ü¹ýÀÇ ´ÜÁ¡À» º¸¿ÏÇÑ ¹æ¹ýÀÌ´Ù. È¿°úÀûÀÎ ÀÓ»ó Áø´ÜÀ» À§Çؼ­´Â °¡»ó ´ëÀå³»½Ã°æÀ» À§ÇÑ Å½»ö °æ·Î¸¦ ºü¸£°í Á¤È®ÇÏ°Ô »ý¼ºÇÒ ÇÊ¿ä°¡ ÀÖÀ¸¸ç, À̸¦ À§ÇÏ¿© ¸î °¡Áö ¹æ½ÄÀÌ °³¹ßµÇ¾î »ç¿ëµÇ°í ÀÖ´Ù. ±×·¯³ª ±âÁ¸ÀÇ ¹æ¹ýµéÀº °Å¸®¸Ê µîÀÇ ÀڷᱸÁ¶¸¦ Àüó¸® ´Ü°è¿¡ ¹Ì¸® »ý¼ºÇÏ¿©¾ß ÇÏ°í, °æ·Î¸¦ ±¸¼ºÇÏ´Â ¸ðµç Á¡µé¿¡ ´ëÇÏ¿© ¹æ´ëÇÑ ¾çÀÇ À§Ä¡ °è»êÀÌ ÇÊ¿äÇϹǷΠ±ä ¿¬»ê ½Ã°£ÀÌ ¼Ò¿äµÈ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ¿¬»ê½Ã°£À» Å©°Ô ´ÜÃà½Ãų ¼ö ÀÖ´Â °¡½Ã¼ºÀ» ÀÌ¿ëÇÑ ÀÚµ¿ °æ·Î »ý¼º¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. º» Á¦¾È ¹æ¹ý¿¡´Â °Å¸®¸Ê °è»ê µîÀÇ Àüó¸® °úÁ¤ÀÌ ÇÊ¿ä ¾øÀ¸¸ç, Ž»ö °æ·Î¸¦ Ç¥ÇöÇÏ´Â °î¼±ÀÇ ¸ðµç Á¡ÀÌ ¾Æ´Ñ °î¼±À» ´ëÇ¥ÇÏ´Â ¼Ò¼öÀÇ Á¦¾îÁ¡(control point)À» »ý¼ºÇÏ´Â ¹æ¹ýÀ¸·Î °è»ê·®À» ÁÙ¿© °æ·Î »ý¼º ½Ã°£À» ´ÜÃàÇÏ¿´´Ù. ¶ÇÇÑ, °¡½Ã¼º¿¡ ±â¹ÝÀ» µÎ¾î °æ·Î¸¦ »ý¼ºÇϱ⠶§¹®¿¡ ÀÚ¿¬½º·¯¿î °¡»ó Ä«¸Þ¶óÀÇ ¿òÁ÷ÀÓÀÌ °¡´ÉÇÏ°í, °¡»ó Ž»ç¿¡ Æí¸®ÇÏ°í, Á¤È®ÇÑ °æ·Î¸¦ »ý¼ºÇÒ ¼ö ÀÖ´Ù. ÀÌ ¹æ¹ýÀº °¡»ó ´ëÀå³»½Ã°æ ÀÌ¿Ü¿¡µµ ´Ù¾çÇÑ Á¾·ùÀÇ °î°ü ³»ºÎÀÇ °¡»ó Ž»ç¿¡ ÀÀ¿ëµÉ ¼ö ÀÖ´Ù.
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(English Abstract)
Virtual colonoscopy is an easy and fast method to reconstruct the shape of colon and diagnose tumors inside the colon based on computed tomography images. This is a non-invasive method, which resolves weak points of previous invasive methods. The path for virtual colonoscopy should be generated rapidly and accurately for clinical examination. However, previous methods are computationally expensive because the data structure such as distance map should be constructed in the preprocessing and positions of all the points of the path needs to be calculated. In this paper, we propose the automatic path generation method based on visibility to decrease path generation time. The proposed method does not require preprocessing and generates small number of control points representing the path instead of all points to generate the path rapidly. Also, our method generates the path based on visibility so that a virtual camera moves smoothly and a comfortable and accurate path is calculated for virtual navigation. Also, our method can be used for general virtual navigation of various kinds of pipes.,
Å°¿öµå(Keyword) ÀÇ·á ¿µ»ó 󸮠  Medical image processing   °¡»ó ´ëÀå³»½Ã°æ   Virtual colonoscopy   °æ·Î »ý¼º   Path generation   °¡½Ã¼º   Visibility  
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