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´ÙÀ½°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
·¹ÀÎÁö ºí·Ï À¯»ç¼ºÀ» ÀÌ¿ëÇÑ ÇÁ·¢Å» ¾ÐÃà
¿µ¹®Á¦¸ñ(English Title)
Fractal Compression using Range Block Coherence
ÀúÀÚ(Author)
±è¿µºÀ
ÀÌÀ±Á¤
¿ø¹®¼ö·Ïó(Citation)
VOL 27 NO. 02 PP. 0117 ~ 0122 (2000. 02)
Çѱ۳»¿ë
(Korean Abstract)
ÇÁ·¢Å» ¿µ»ó ¾ÐÃàÀº ¿µ»óÀÇ ÀϺΠ¿µ¿ªÀÌ °°Àº ¿µ»óÀÇ ´Ù¸¥ ¿µ¿ª°ú °ÅÀÇ À¯»çÇÑ ¸ð¾çÀ» ÇÏ°í ÀÖ´Ù´Â ÀÚ±âÀ¯»ç¼º¿¡ ±âÃÊÇÏ°í ÀÖ´Ù. ÀÌ ¾ÐÃà ¹æ¹ýÀº ³ôÀº ¾ÐÃà·ü°ú ºü¸¥ º¹¿ø·ÂÀ» Á¦°øÇÏÁö¸¸ ¸Å¿ì ±ä ¾ÐÃà ½Ã°£À» °®´Â´Ù. ¾ÐÃà ½Ã°£À» ÁÙÀ̱â À§ÇØ °¡Àå ¸¹Àº ½Ã°£ÀÌ ¼Ò¿äµÇ´Â ·¹ÀÎÁö ºí·Ï°ú µµ¸ÞÀÎ ºí·Ï°£ÀÇ ºñ±³ Ž»ö °úÁ¤À» ÁÙÀÌ·Á´Â ½Ãµµ°¡ ²ÙÁØÈ÷ ÀÌ·ç¾îÁ® ¿Ô´Ù. ÀÌ ¿¬±¸µéÀº Å©°Ô Ž»öÇÒ µµ¸ÞÀÎ ¿µ¿ª¿¡ Á¦ÇÑÀ» °¡ÇÏ´Â ¹æ¹ý°ú µµ¸ÞÀÎ ºí·ÏÀÇ Å½»ö ¼ø¼¸¦ ÁÖ¾îÁø Á¶°ÇÀ» ¸¸Á·ÇÏ´Â ÃÖÃÊÀÇ µµ¸ÞÀÎÀ» ã´Â ¹æ¹ýÀ¸·Î ³ª´©¾î º¼ ¼ö ÀÖ´Ù. ±×·¯³ª ´ëºÎºÐÀÇ ÇÁ·¢Å» ¿µ»ó ¾ÐÃà ±â¹ýÀº ¾ÆÁ÷µµ ¸¹Àº ¾ÐÃà ½Ã°£À» ÇÊ¿ä·Î ÇÏ°í ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ¿µ»ó ¾ÐÃà ½Ã°£À» ȹ±âÀûÀ¸·Î ÁÙÀ̱â À§ÇØ ·¹ÀÎÁö ºí·Ï°£ÀÇ À¯»ç¼ºÀ» ÀÌ¿ëÇÏ¿© ¸î °³ÀÇ ·¹ÀÎÁö ºí·Ï¿¡ ´ëÇؼ¸¸ µµ¸ÞÀΠŽ»öÀ» ½ÃµµÇÏ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. À̸¦ À§ÇØ ¸ðµç ·¹ÀÎÁö ºí·ÏÀº °¢°¢ÀÇ ¸ð¾çÀ» ¹ÙÅÁÀ¸·Î ¸î °³ÀÇ À¯»ç ±×·ìÀ¸·Î ºÐ·ùµÇ¸ç, °¢ ±×·ìÀÇ ´ëÇ¥ ºí·Ï¿¡ ´ëÇؼ¸¸ µµ¸ÞÀΠŽ»öÀ» ½ÇÇàÇÏ°Ô µÈ´Ù. ¶ÇÇÑ ÀÌ ¹æ¹ýÀ» ´Ù¸¥ ÇÁ·¢Å» ¿µ»ó ¾ÐÃà ±â¹ýÀÇ »çÀü ÀÛ¾÷À¸·Î È°¿ëÇÑ´Ù¸é ´õ¿í Å« È¿°ú¸¦ º¸°Ô µÉ °ÍÀÌ´Ù.
¿µ¹®³»¿ë
(English Abstract)
The fractal image compression is based on the self-similarity that some area in an image is very similar to others. This compression method offers high compression ratio and fast decompression, but it has very long encoding time. To cut-off the encoding time, most researches give a restriction on domain blocks to be compared with a range block or make an effective search sequence of the domain blocks for a range block. However, most of them take much encoding time yet. In this research, we propose an algorithm that greatly reduces the encoding time by considering the coherence between range blocks. This algorithm first classifies all range blocks into some groups using the coherence between range blocks, and then searches corresponding domain blocks only for the key block of each group. If this scheme is joined in a prior work of the other fractal compression algorithm, it will give a great effectiveness to encoding time.
Å°¿öµå(Keyword)
Range Block Coherence
·¹ÀÎÁö ºí·Ï À¯»ç¼º
ÇÁ·¢Å» ¾ÐÃà
Fractal Compression
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