Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
ÇѱÛÁ¦¸ñ(Korean Title) |
µåºß½Ã ÇÊÅ͸¦ ÀÌ¿ëÇÑ °í¼Ó ÇÁ·¹³Ú¸´ º¯È¯ÀÇ ±¸Çö |
¿µ¹®Á¦¸ñ(English Title) |
Implementation of High-Speed Fresnelet Transform using Daubechies¡¯s Filter |
ÀúÀÚ(Author) |
¼¿µÈ£
ÀÌÀ±Çõ
±èµ¿¿í
Young-Ho Seo
Yoon-Hyuk Lee
Dong-Wook Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 21 NO. 04 PP. 0820 ~ 0828 (2017. 04) |
Çѱ۳»¿ë (Korean Abstract) |
Â÷¼¼´ë ¿µ»ó ½Ã½ºÅÛÀÎ µðÁöÅРȦ·Î±×·¥À» ¼ºñ½ºÇϱâ À§Çؼ´Â ´Ù¾çÇÑ Ãø¸é¿¡¼ ½Åȣó¸® ±â¼úÀÌ ÇÊ¿äÇÏ´Ù. ¿ì¸®°¡ ÁÖ·Î »ç¿ëÇÏ´Â 2Â÷¿ø ¹× 3Â÷¿ø ÀÚ¿¬ ¿µ»óÀ» ó¸®Çϴµ¥ ÀÖ¾î¼ °¡Àå ¸¹ÀÌ »ç¿ëµÇ´Â ¿µ»óó¸® µµ±¸´Â º¯È¯ÀÌ´Ù. µðÁöÅРȦ·Î±×·¥ÀÇ Æ¯¼ºÀº ÀÚ¿¬ ¿µ»ó°ú ¸Å¿ì ´Ù¸¥ Ư¼ºÀ» °®±â ¶§¹®¿¡ 2Â÷¿ø ¿µ»ó¿¡¼ »ç¿ëµÇ´ø º¯È¯ µµ±¸µéÀ» µðÁöÅРȦ·Î±×·¥¿¡ Àû¿ëÇÏ´Â °ÍÀº È¿À²¼ºÀÌ ¸Å¿ì ³·´Ù. À̸¦ ±Øº¹Çϱâ À§ÇØ ÇÁ·¹³Ú¸´ º¯È¯ÀÌ Á¦¾ÈµÇ¾ú´Âµ¥ º» ³í¹®¿¡¼´Â ¿þÀÌºí¸´ ±âÀúÇÔ¼ö¿¡ À¯´ÏÅ͸® ÇÁ·¹³Ú º¯È¯À» Àû¿ëÇÏ°í µåºß½Ã ÇÊÅ͸¦ ÀÌ¿ëÇÏ¿© ÇÁ·¹³Ú¸´ º¯È¯À» À¯µµÇÏ¿´´Ù. ¶ÇÇÑ ÇÁ·¹³Ú¸´ º¯È¯À» µð¹ÙÀ̽º ¹× Ä¿³Î Äڵ带 ÀÌ¿ëÇÏ¿© ±¸ÇöÇÏ¿© µ¿ÀÛ ¼º´ÉÀ» Çâ»ó½ÃÅ°µµ·Ï ÇÏ¿´´Ù. ¸ðµç Çػ󵵿¡ ´ëÇØ ÇÑ È¼Ò´ç ¼Ò¿äµÇ´Â Æò±Õ ½Ã°£À» ±âÁØÀ¸·Î »ìÆ캸¾ÒÀ» ¶§ µð¹ÙÀ̽º Äڵ带 ÀÌ¿ëÇÏ¿© º´·ÄÈ ¿¬»êÀ» ¼öÇàÇϸé (9,7)ÇÊÅÍÀÇ °æ¿ì¿¡´Â Æò±Õ 242¹è, (5,3)ÇÊÅÍÀÇ °æ¿ì¿¡´Â Æò±Õ 30¹èÀÇ ¼º´ÉÇâ»óÀ» °¡Á®¿Â´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Service of digital hologram that has been recognized as a visual system for next generation requires various signal processing technologies. A transform is the most frequently used tool among signal processing techniques for 2-dimensional(D) and 3-D natural picture. A digital hologram has totally different property with a natural picture, so it is rarely efficient to apply transform tools used in 2-D image processing to a digital hologram. To overcome this a Fresnelet transform for a digital hologram has been proposed. We derive a Fresnelet transform by using the Daubechie¡¯s filter after applying an unitary Fresnel transform to a wavelet basis function. We also implement the transform as types of device and kernel code to improve operational performance. In consideration of the average time that is required for a pixel we can have observed the performance is improved up to 242 and 30 times for using the (9,7) and (5,3) filters in case of using device code.
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Å°¿öµå(Keyword) |
ÇÁ·¹³Ú¸´
¿þÀÌºí¸´
ÇÁ·¹³Ú
µðÁöÅРȦ·Î±×·¥
½Åȣó¸®
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Fresnelet
wavelet
Fresnel
digital hologram
signal processign
transform
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