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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 :

ÇѱÛÁ¦¸ñ(Korean Title) ¿µ»ó Ç°Áú °³¼±À» À§ÇÑ FPGA ±â¹Ý °í¼Ó È÷½ºÅä±×·¥ ÆòÈ°È­ ȸ·Î ±¸Çö
¿µ¹®Á¦¸ñ(English Title) FPGA-based Implementation of Fast Histogram Equalization for Image Enhancement
ÀúÀÚ(Author) ·ù»ó¹®   Sang-Moon Ryu  
¿ø¹®¼ö·Ïó(Citation) VOL 23 NO. 11 PP. 1377 ~ 1383 (2019. 11)
Çѱ۳»¿ë
(Korean Abstract)
¿µ»ó Ç°Áú °³¼±À» À§ÇØ »ç¿ëµÇ´Â È÷½ºÅä±×·¥ ÆòÈ°È­ ¾Ë°í¸®ÁòÀº Çϵå¿þ¾î ȸ·Î·Î ±¸ÇöµÇ¸é ¼ÒÇÁÆ®¿þ¾î·Î ±¸ÇöµÈ °æ¿ìº¸´Ù ÀÛ¾÷ ¼Óµµ ¸é¿¡¼­ ¼º´ÉÀÌ ÈξÀ ¶Ù¾î³ª´Ù. FPGA¸¦ ÀÌ¿ëÇÑ È÷½ºÅä±×·¥ ÆòÈ°È­ ȸ·Î ±¸Çö¿¡ ´ëºÎºÐÀÇ ÃÖ½ÅFPGA¿¡ Æ÷ÇÔµÈ °ö¼À±â ȸ·Î¿Í »ó´ç·®ÀÇ SRAMÀ» ÀÌ¿ëÇÏ°í, ÆÄÀÌÇÁ¶óÀÎÀ» Àû¿ëÇϸé È÷½ºÅä±×·¥ ÆòÈ°È­ ȸ·ÎÀÇ ÀüüÀûÀÎ µ¿ÀÛ ¼º´ÉÀ» ³ôÀÏ ¼ö ÀÖ´Ù. º» ³í¹®Àº ÀÌ¿Í °°Àº ¹æ¹ýÀ» Àû¿ëÇÏ¿© 8ºñÆ® ½Éµµ¸¦ °®´Â Èæ¹é ¿µ»ó¿¡ ´ëÇØ È÷½ºÅä±×·¥ ÆòÈ°È­ ÀÛ¾÷À» °í¼ÓÀ¸·Î ¼öÇà °¡´ÉÇÑ FPGA ±¸Çö ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ ȸ·Î´Â FIFO¸¦ ÀÌ¿ëÇÏ¿© ÇÑ °³ÀÇ ¿µ»ó¿¡ ´ëÇÑ ÆòÈ°È­°¡ ÁøÇàµÇ´Â µ¿¾È ´ÙÀ½ ¿µ»ó¿¡ ´ëÇÑ È÷½ºÅä±×·¥ °è»êÀ» ¼öÇàÇÒ ¼ö ÀÖ´Ù. FIFO¸¦ ÀÌ¿ëÇÑ ÀϺΠÀÛ¾÷ÀÇ ½Ã°£Àû Áßø°ú ³»ÀåµÈ °ö¼À±â ȸ·Î ±×¸®°í ÆÄÀÌÇÁ¶óÀÎ Àû¿ë È¿°ú·Î ȸ·ÎÀÇ ÀüüÀûÀÎ ¼º´ÉÀº ´ë·« ¸Å Ŭ·°¸¶´Ù ÇÑ °³ÀÇ È­¼Ò¿¡ ´ëÇØ È÷½ºÅä±×·¥ ÆòÈ°È­¸¦ ¼öÇàÇÒ ¼ö ÀÖ´Ù. ±×¸®°í ¿µ»óÀ» ºÐÇÒÇÏ¿© È÷½ºÅä±×·¥ ÆòÈ°È­ ÀÛ¾÷ÀÇ ÀϺθ¦ º´·Ä ó¸®ÇÏ¸é ±× ¼º´ÉÀ» ¼Óµµ ¸é¿¡¼­ °ÅÀÇ µÎ ¹è·Î Çâ»óÇÒ ¼ö ÀÖ´Ù.
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(English Abstract)
Histogram equalization is the most frequently used algorithm for image enhancement. Its hardware implementation significantly outperforms in time its software version. The overall performance of FPGA-based implementation of histogram equalization can be improved by applying pipelining in the design and by exploiting the multipliers and a lot of SRAM blocks which are embedded in recent FPGAs. This work proposes how to implement a fast histogram equalization circuit for 8-bit gray level images. The proposed design contains a FIFO to perform equalization on an image while the histogram for next image is being calculated. Because of some overlap in time for histogram equalization, embedded multipliers and pipelined design, the proposed design can perform histogram equalization on a pixel nearly at a clock. And its dual parallel version outperforms in time almost two times over the original one.
Å°¿öµå(Keyword) ¿µ»óÇ°Áú °³¼±   È÷½ºÅä±×·¥ ÆòÈ°È­   FPGA   º´·Ä 󸮠  Image enhancement   Histogram equalization   FPGA   Parallel processing  
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