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Ȩ Ȩ > ¿¬±¸¹®Çå > Çмú´ëȸ ÇÁ·Î½Ãµù > Çѱ¹Á¤º¸Åë½ÅÇÐȸ Çмú´ëȸ > 2013³â Ãß°èÇмú´ëȸ

2013³â Ãß°èÇмú´ëȸ

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) 3Â÷¿ø Depth Image ÃßÃâ¿ë Differential CORDIC ±â¹Ý °í¼Ó À§»ó ¿¬»ê±âÀÇ FPGA ±¸Çö
¿µ¹®Á¦¸ñ(English Title) FPGA Implementation of Differential CORDIC-based high-speed phase calculator for 3D Depth Image Extraction
ÀúÀÚ(Author) ±¸Á¤À±   ½Å°æ¿í   Jung-youn Koo   Kyung-Wook Shin  
¿ø¹®¼ö·Ïó(Citation) VOL 17 NO. 02 PP. 0350 ~ 0353 (2013. 10)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â TOF(Time-Of-Flight) ¼¾¼­¿¡ ÀÇÇØ ¾ò¾îÁø Á¤º¸·ÎºÎÅÍ 3Â÷¿ø ±íÀÌ ¿µ»ó(depth image)À» ÃßÃâÇϱâ À§ÇÑ À§»ó ¿¬»ê±âÀÇ Çϵå¿þ¾î ±¸ÇöÀ» Á¦¾ÈÇÑ´Ù. ¼³°èµÈ À§»ó ¿¬»ê±â´Â DCORDIC (Differential COordinate Rotation DIgital Computer) ¾Ë°í¸®µëÀÇ vectoring mode¸¦ ÀÌ¿ëÇÏ¿© Arctangent ¿¬»êÀ» ¼öÇàÇϸç, 󸮷®°ú ¼Óµµ¸¦ ´Ã¸®±â À§ÇØ redundant binary ¼öü°è¿Í pipelined ±¸Á¶¸¦ Àû¿ëÇÏ¿´´Ù. Á¦¾ÈµÈ ¾Ë°í¸®µëÀº °íÁ¤ ¼Ò¼öÁ¡ MATLAB ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ °ËÁõÇÏ°í ÃÖÀû µ¥ÀÌÅÍ ºñÆ® ¼ö ¹× ¹Ýº¹ Ƚ¼ö¸¦ °áÁ¤ÇÏ¿´´Ù. ¼³°èµÈ À§»ó ¿¬»ê±â´Â MATLAB/Simulink¿Í FPGA ¿¬µ¿À» ÅëÇØ °¡»óÀÇ 3Â÷¿ø µ¥ÀÌÅÍ º¹¿ø µ¿ÀÛÀ» °ËÁõÇÏ¿´À¸¸ç, 469 MHzÀÇ Å¬·Ï ÁÖÆļö·Î µ¿ÀÛÇÏ¿© 7.5 GbpsÀÇ ¼º´ÉÀ» °®´Â °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù.

¿µ¹®³»¿ë
(English Abstract)
In this paper, a hardware implementation of phase calculator for extracting 3D depth image from TOF(Time- Of-Flight) sensor is proposed. The designed phase calculator, which adopts redundant binary number systems and a pipelined architecture to improve throughput and speed, performs arctangent operation using vectoring mode of DCORDIC algorithm. Fixed-point MATLAB simulations are carried out to determine the optimized bit-widths and number of iteration. The designed phase calculator is verified by emulating the restoration of virtual 3D data using MATLAB/Simulink and FPGA-in-the-loop verification, and the estimated performance is about 7.5 Gbps at 469 MHz clock frequency.
Å°¿öµå(Keyword) Depth Image   Phase Calculator   Time-Of-Flight   CORDIC   DCORDIC   FPGA  
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