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ÇѱÛÁ¦¸ñ(Korean Title) |
°æ°è¼± Á¤º¸¸¦ ÀÌ¿ëÇÑ ´ÙÁß ÇØ»óµµ ¹«¼Õ½Ç ¿µ»ó ¾ÐÃàÀ» À§ÇÑ ¿¹Ãø±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Prediction by Edge Detection Technique for Lossless Multi-resolution Image Compression |
ÀúÀÚ(Author) |
±èÅÂÈ
ÀÌÀ±Áø
À§¿µÃ¶
Taewha Kim
Yunjin Lee
Youngchul Wei
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¿ø¹®¼ö·Ïó(Citation) |
VOL 37 NO. 03 PP. 0170 ~ 0176 (2010. 03) |
Çѱ۳»¿ë (Korean Abstract) |
¹«¼Õ½Ç¿µ»ó ¾ÐÃà¿¡¼ ³ôÀº ¾ÐÃà·üÀ» ¾ò±â À§ÇØ µ¥ÀÌÅÍÀÇ ¿¹ÃøÀ» Á¤È®ÇÏ°Ô ÇÏ´Â °ÍÀº ¸Å¿ì Áß¿äÇÏ´Ù. º» ³í¹®¿¡¼´Â Á¤È®ÇÑ ¿¹ÃøÀ» ÅëÇØ ¾ÐÃà·üÀ» Çâ»ó½ÃÅ°°í ´ÙÁß ÇØ»óµµ ±â¹ýÀ» »ç¿ëÇÏ¿© ¡°ºü¸¥ ¹Ì¸® º¸±â¡±¸¦ Á¦°øÇÒ ¼ö ÀÖ´Â ¾ÐÃà ¹× º¹¿ø ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. °¢ ÇØ»óµµÀÇ ¿µ»óÀÌ ´Ü°èÀûÀ¸·Î ó¸®µÇ¸ç °¢ Çȼ¿Àº ÀÌÀü ´Ü°èÀÇ Çȼ¿ Á¤º¸¸¦ Æ÷ÇÔÇÑ ÁÖº¯ Çȼ¿ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ¾ÐÃàµÇ°í º¹¿øµÈ´Ù. À̶§, ¼öÆò, ¼öÁ÷, ´ë°¢ °æ°è¼± Á¤º¸¿Í Æò±Õ ¹× °¡ÁßÆò±Õ Á¤º¸¸¦ ÀÌ¿ëÇØ ¿¹ÃøÇÔÀ¸·Î½á JPEG-LS º¸´Ù 3.6%, HINTº¸´Ù 2.5% ÁÁÀº ¿£Æ®·ÎÇǸ¦ °¡Áö´Â ¿¹Ãø ¼º´ÉÀ» ¾òÀ» ¼ö ÀÖ¾ú´Ù. |
¿µ¹®³»¿ë (English Abstract) |
Prediction is an important step in high-performance lossless data compression. In this paper, we propose a novel lossless image coding algorithm to increase prediction accuracy which can display low-resolution images quickly with a multi-resolution image technique. At each resolution, we use pixels of the previous resolution image to estimate current pixel values. For each pixel, we determine its estimated value by considering horizontal, vertical, diagonal edge information and average, weighted-average information obtained from its neighborhood pixels. In the experiment, we show that our method obtains better prediction than JPEG-LS or HINT. |
Å°¿öµå(Keyword) |
¿µ»ó ¾ÐÃà
´ÙÁß ÇØ»óµµ ±â¹ý
¹«¼Õ½Ç ¿µ»ó ¾ÐÃà
¿¹Ãø±â¹ý
Image Compression
Lossless image compression
Multiresolution
Prediction technique
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