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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 24 / 128 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) Ä®¸¸ ¿Í·ù(è¾×µ) ¿µ»óÀ» ÀÌ¿ëÇÑ ¼ÓµµÀå ÃßÁ¤
¿µ¹®Á¦¸ñ(English Title) Velocity Field Estimation using Karman Vortex Images
ÀúÀÚ(Author) ±èÇü±Ç   ±èÁø¿ì   Hyeong-kwon Kim   Jin-woo Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 22 NO. 10 PP. 1327 ~ 1333 (2018. 10)
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(Korean Abstract)
¼öÄ¡ Çؼ®Àº À¯µ¿ °æ·Î¸¦ °ø½ÄÈ­ÇÒ ÇÊ¿ä°¡ ¾ø´Ù´Â ÀåÁ¡À¸·Î °æ·Î ¼³°è¿Í °°Àº ½Ã¹Ä·¹ÀÌ¼Ç ºÐ¼®¿¡ À¯¿ëÇÏ´Ù. ±×·¯³ª À¯Ã¼ÀÇ ¿ÏÀüÇÑ ¹°¸®Àû ¸Å°³ º¯¼ö¿Í °æ°è Á¶°ÇÀ» ¾Ë°í ÀÖ¾î¾ß ÇÑ´Ù. ±×Áß Çϳª¶óµµ ¾Ë ¼ö ¾ø´Â °æ¿ì, °è»êÀÌ ºÒ°¡´ÉÇØ Áö°Å³ª, ¼ö·ÅµÇ´õ¶óµµ °á°úÀÇ ½Å·Ú¼ºÀÌ ³·¾ÆÁø´Ù. µû¶ó¼­ À¯µ¿ Á¤º¸¸¦ º¸´Ù Á¤È®ÇÏ°Ô È¹µæÇÏ´Â ¹æ¹ýÀÌ ¿ä±¸µÈ´Ù. º» ³í¹®Àº ¼ö·Î ³»ÀÇ ¿°·áÀÇ À̵¿¿¡ ¼ö¹ÝµÇ´Â ¿µ»ó ¸íµµÀÇ º¯È­¸¦ ±â¹ÝÀ¸·Î ¿µ»ó Á¤º¸ ¹× ¼ÓµµÀåÀÇ ±¸¼Ó½ÄÀ» ÀÌ¿ëÇÏ¿© ¿°·áÀÇ ¼ÓµµÀåÀ» ÃßÁ¤ÇÏ´Â ±â¹ýÀ» Á¦½ÃÇÑ´Ù. ±¸¼Ó½ÄÀº ¼ÓµµÀå ÃßÁ¤ ½Ã¿¡ ¹ß»ýÇÏ´Â ¿À·ù¸¦ ÃÖ¼ÒÈ­Çϱâ À§Çؼ­ ¾ÈÁ¤È­ Ç×À» Ãß°¡Çß´Ù. º» ³í¹®Àº Ä«¸£¸¸ ¿Í·ùÀÇ »ý¼º À̹ÌÁö¿Í ½ÇÁ¦ ¿µ»óÀ» ´ë»óÀ¸·Î Á¦¾È ¼ö¹ýÀÇ È¿À²¼ºÀ» º¸ÀδÙ.
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(English Abstract)
Numerical analysis has the advantage that no actual flow pathways need to be formulated, making this technique especially useful for simulation analysis such as pathway design. However, it does require that the complete physical parameters of the fluid and the complete boundary conditions be known. If any of them are unknown, either the calculation will become impossible, or even if the calculation does converge, the reliability of the result will be low. Therefore, a means of more accurate acquisition of flow information is required. In this paper, we present techniques for estimating flow field from a constraint equation for image information and velocity field, based on the image intensity changes accompanying the motion of dye in waterway. In the equation, we entered a stabilizing term to suppress estimation error. We show the effectiveness of our method through experiments with generated and real images of a Karman vortex.
Å°¿öµå(Keyword) ¿Í·ù   ¼ÓµµÀå   ½Ã°ø°£ ¿µ»ó   À¯Ã¼¸ðµ¨   ¿µ»ó󸮠  Vortex   Velocity field   Spatio-temporal image   Fluid model   Image processing  
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