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
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¿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.
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¿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.
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Å°¿öµå(Keyword) |
Depth Image
Phase Calculator
Time-Of-Flight
CORDIC
DCORDIC
FPGA
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ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
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