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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) LASPI: Áö¿øÁ¡ º¸°£¹ýÀ» ÀÌ¿ëÇÑ H/W ±¸Çö¿¡ ¿ëÀÌÇÑ ½ºÅ×·¹¿À ¸ÅĪ ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) LASPI: Hardware friendly LArge-scale stereo matching using Support Point Interpolation
ÀúÀÚ(Author) ¹Ú»óÇö   ±â¹Ì·¹ µðÆÅ   ±èÁ¤±¹   ÇÑ¿µ±â   Sanghyun Park   Deepak Ghimire   Jung-guk Kim   Youngki Han  
¿ø¹®¼ö·Ïó(Citation) VOL 44 NO. 09 PP. 0932 ~ 0945 (2017. 09)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â Á¤·ù(Rectification), µð½ºÆи®Æ¼ ÃßÁ¤(Disparity Estimation) ¹× ½Ã°¢È­¸¦ Æ÷ÇÔÇÑ ½ºÅ×·¹¿À ºñÀü ÇÁ·Î¼¼½Ì ½Ã½ºÅÛÀÇ »õ·Î¿î Çϵå¿þ¾î ¹× ¼ÒÇÁÆ®¿þ¾î ¾ÆÅ°ÅØó¸¦ °³¹ßÇÏ¿´´Ù. °³¹ßµÈ Áö¿øÁ¡ º¸°£¹ýÀ» ÀÌ¿ëÇÑ ´ëÇü ½ºÅ×·¹¿À ¸ÅĪ ¹æ¹ý(LASPI)Àº °íÈ­Áú À̹ÌÁöÀÇ Áö¿øÁ¡ ¹Ðµµ°¡ ³ôÀº ¿µ¿ª¿¡¼­ÀÇ µð½ºÆи®Æ¼ ¸ÅĪ¿¡ ÀÖ¾î, ELAS µî ±âÁ¸ ½ºÅ×·¹¿À ¸ÅĪ ¹æ¹ý°ú ºñ±³ÇÒ ¶§, µð½ºÆи®Æ¼ ¸Ê¿¡ ´ëÇÑ Ç°Áú ¼öÁØÀ» À¯ÁöÇϸ鼭µµ ½Ç½Ã°£ ¼º´É Áö¿ø Ãø¸é¿¡¼­ ¿ì¼öÇÏ´Ù. LASPI´Â ÀÚÀ²ÁÖÇà ÀÚµ¿Â÷¿¡ Àû¿ëµÇ´Â Àå¾Ö¹° ÀÎ½Ä ½Ã½ºÅÛ, °Å¸® °ËÃ⠽ýºÅÛ, Àå¾Ö¹° °ËÃ⠽ýºÅÛ µî, ¾ÈÀü¿¡ ¹Î°¨ÇÑ ¸ðµâ Àû¿ëÀ» À§ÇØ, ÇÁ·¹ÀÓ Ã³¸®¼ÓµµÀÇ ½Ç½Ã°£¼º, °Å¸® °ª ºÐÇØ ¼º´ÉÀÇ Á¤È®¼º, ³·Àº ¸®¼Ò½º »ç¿ë µî, ¿ä±¸Á¶°ÇÀ» ÃæÁ·Çϵµ·Ï ¼³°è µÇ¾ú´Ù. °³¹ßµÈ LASPI ¾Ë°í¸®ÁòÀº H/W º´·Äó¸® ±¸Á¶¿Í 4 ´Ü°è ÆÄÀÌÇÁ¶óÀÎÀ¸·Î ±¸¼ºµÈ FPGA·Î ±¸ÇöµÇ¾ú´Ù. 148.5MHz Ŭ·°ÀÇ Xilinx Virtex-7 FPGA ±â¹ÝÀ¸·Î ±¸ÇöµÈ ½Ã½ºÅÛÀº °¢Á¾ ½ÇÇèÀ» ÅëÇØ, HD±Þ À̹ÌÁö(1280¡¿720 Çȼ¿)¿¡ ´ëÇØ ½ÇÂ÷¿¡ ÀÀ¿ë °¡´ÉÇÑ µð½ºÆи®Æ¼ ¸ÊÀ» »êÃâÇϸ鼭µµ ½Ç½Ã°£ ó¸® ¿ä±¸ Á¶°ÇÀÎ ÃÊ´ç 30 ÇÁ·¹ÀÓ Ã³¸®°¡ °¡´ÉÇÔÀ» È®ÀÎÇÏ¿´´Ù.
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(English Abstract)
In this paper, a new hardware and software architecture for a stereo vision processing system including rectification, disparity estimation, and visualization was developed. The developed method, named LArge scale stereo matching method using Support Point Interpolation (LASPI), shows excellence in real-time processing for obtaining dense disparity maps from high quality image regions that contain high density support points. In the real-time processing of high definition (HD) images, LASPI does not degrade the quality level of disparity maps compared to existing stereo-matching methods such as Efficient LArge-scale Stereo matching (ELAS). LASPI has been designed to meet a high frame-rate, accurate distance resolution performance, and a low resource usage even in a limited resource environment. These characteristics enable LASPI to be deployed to safety-critical applications such as an obstacle recognition system and distance detection system for autonomous vehicles. A Field Programmable Gate Array (FPGA) for the LASPI algorithm has been implemented in order to support parallel processing and 4-stage pipelining. From various experiments, it was verified that the developed FPGA system (Xilinx Virtex-7 FPGA, 148.5MHz Clock) is capable of processing 30 HD (1280¡¿720 pixels) frames per second in real-time while it generates disparity maps that are applicable to real vehicles.
Å°¿öµå(Keyword) Á¤·ù   ½ºÅ×·¹¿À ºñÀü½Ã½ºÅÛ   µð½ºÆи®Æ¼ ¸Ê   ½Ç½Ã°£   ½ºÅ×·¹¿À ¸ÅĪ   rectification   stereo vision system   disparity map   real-time   stereo matching  
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