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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.7, 2011³â, pp.5-16
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ÈëÀÇ º¯Çü ÃøÁ¤À» À§ÇÑ µðÁöÅÐ À̹ÌÁö ÇØ¼® ±â¹ýÀÇ ÃÖÀûÈ ¹× Á¤È®µµ Æò°¡
( Evaluation of Accuracy and Optimization of Digital Image Analysis Technique for Measuring Deformation of Soils ) |
| ±èÁØ¿µ;ÀåÀÇ·æ;Á¤Ãæ±â; ¼¿ï´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;¼¿ï´ëÇб³ °øÇבּ¸¼Ò;¼¿ï´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;
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| °íü ¿ªÇÐ ¹× À¯Ã¼ ¿ªÇÐ ºÐ¾ß¿¡¼ ´ë»ó ¹°Ã¼ÀÇ º¯Çü, º¯À§ ¹× ¼Óµµ¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© µðÁöÅÐ À̹ÌÁö ÇØ¼® ±â¹ýÀÌ °³¹ß, »ç¿ëµÇ°í ÀÖ´Ù. Áö¹Ý °øÇп¡¼µµ ÈëÀ» Æ÷ÇÔÇÑ Áö¹Ý ±¸Á¶¹°ÀÇ º¯ÇüÀ» °üÃøÇϱâ À§ÇÏ¿© Particle Image Velocimetry (PIV)¿Í Digital Image Correlation (DIC) ±â¹ýÀÌ ½Ç³» ½ÃÇè ¹× ¸ðÇü ½ÃÇè µî¿¡ Àû¿ëµÇ±â ½ÃÀÛÇÏ´Â Ãß¼¼ÀÌ´Ù. À̹ÌÁö ÇØ¼®Àº ½Ã·áÀÇ Á¾·ù ¹× Å©±â, Ä«¸Þ¶ó ÇØ»óµµ, ÇØ¼® ¹üÀ§, À̹ÌÁö ÇØ¼® Á¶°Ç¿¡ ¿µÇâÀ» ¹ÞÀ¸¹Ç·Î, ´Ù¾çÇÑ Á¶°Ç¿¡¼ÀÇ Á¤¹Ðµµ¸¦ Æò°¡ÇÏ¿© ÇÕ¸®ÀûÀ¸·Î ÃÖÀû Á¶°ÇÀ» °áÁ¤ÇÒ Çʿ䰡 ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â µðÁöÅÐ À̹ÌÁö ÇØ¼® °á°ú¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â ´Ù¾çÇÑ ¿ä¼Ò¸¦ Á¤¸®ÇÏ¿´´Ù. ±×¸®°í ³ôÀº Á¤È®µµÀÇ ÇØ¼® °á°ú¸¦ ¾òÀ» ¼ö ÀÖ´Â ÃÖÀûÀÇ À̹ÌÁö ÇØ¼® Á¶°ÇÀ» °áÁ¤ÇÏ´Â ÀýÂ÷¸¦ Á¦¾ÈÇÏ¿´À¸¸ç ÃÖÁ¾ÀûÀ¸·Î Á¦¾ÈµÈ ÀýÂ÷ÀÇ Àû¿ë¼ºÀ» Á¡¼ºÅä ½Ã·á¿¡ ´ëÇÏ¿© °ËÁõÇÏ¿´´Ù. |
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| Digital image analysis techniques have been developed and utilized in the field of solid mechanics and fluid mechanics to measure the deformation and velocity of a target object. The deformation measurement systems based on Particle Image Velocimetry (PIV) and Digital Image Correlation (DIC) have been attempted in geotechnical testings (e.g., physical model tests) for observing the deformation of soils. The digital image analysis is influenced by image pattern of test materials, resolution of the used digital camera, target area, image analysis techniques, and analysis conditions. Therefore, optimal analysis conditions should be determined to obtain high quality results on soil deformations. In the present study, various influence factors on the digital image analysis were described and summarized. The optimizing procedure for high accurate results was then proposed. Finally, the applicability of the developed procedure was examined. |
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| Ű¿öµå |
| Accuracy evaluation;Digital image analysis;Optimization;Soil deformation; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.7, 2011³â, pp.5-16
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201128563052708)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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