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ÇѱÛÁ¦¸ñ(Korean Title) |
°ø°£ÁÖÆļö¸¦ ÀÌ¿ëÇÑ Àå¸é¿µ»ó¿¡¼ ÅؽºÆ® °ËÃâ |
¿µ¹®Á¦¸ñ(English Title) |
Text Detection in Scene Images using spatial frequency |
ÀúÀÚ(Author) |
½ÅºÀ±â
±è¼±±Ô
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 30 NO. 01 PP. 0031 ~ 0039 (2003. 02) |
Çѱ۳»¿ë (Korean Abstract) |
Àå¸é ¿µ»ó ¼ÓÀÇ ¹®ÀÚ ¿µ¿ª¿¡´Â ´Ù¸¥ ºÎºÐ°ú´Â ±¸ºÐµÇ´Â Ư¡ÀûÀÎ °ø°£ÁÖÆļö°¡ ÀÖ´Ù. ÀÌ Æ¯Â¡Àº Á÷°üÀûÀÌ¸ç ¶ÇÇÑ À¯¿ëÇÑ Á¤º¸·Î¼ÀÇ °¡Ä¡°¡ ÀÖ´Ù. º» ³í¹®¿¡¼´Â Àå¸é ¿µ»ó¿¡¼ ¼öÆò ÅؽºÆ®¸¦ ã´Â ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ¼öÁ÷ ¹× ¼öÆò ¹æÇâÀ¸·Î °ÉÄ£ edge Çȼ¿ÀÇ ºóµµ¼ö¿Í Ǫ¸®¿¡ º¯È¯¿¡ ÀÇÇÑ ±âº» ÁÖÆļöÀÇ µÎ °¡Áö Ư¡À» ÀÌ¿ëÇÑ ¹æ¹ýÀÌ´Ù. µÎ °¡Áö Ư¡À» µ¶¸³ÀûÀ¸·Î È°¿ëÇÏ¿© ±× °á°ú¸¦ °áÇÕÇϰųª ¿¬¼ÓÇÏ¿© Àû¿ëÇÏ¿© ¿øÇÏ´Â °á°ú¸¦ ¾òÀ» ¼ö ÀÖ´Ù. ÀÌ¿Í °°Àº Ư¡Àº ´ëü·Î ¾ð¾î ¶Ç´Â ¹®ÀÚ¿¡ ¹«°üÇÔÀ» È®ÀÎÇÏ¿´´Ù. ÀÌ¿¡ Ãß°¡ÇÏ¿© Hough º¯È¯À» ÀÌ¿ëÇÑ Àå¸é ¼ÓÀÇ »ç°¢ÇüÀ» Ž»öÇÏ¿´´Ù. ¿©·¯ »ç¶÷µé¿¡°Ô À¯¿ëÇÑ Á¤º¸´Â º¸Åë °ÇÑ »ö»ó´ëºñ·Î ´«¿¡ Àß ¶ç´Â »ö±òÀÇ »ç°¢Çü ¾È¿¡ ¾º¾îÀÖ´Â °æ¿ì°¡ º¸ÅëÀ̹ǷΠ»ç°¢ÇüÀÇ Å½»öÇÔÀ¸·Î½á º¸´Ù È¿°úÀûÀ¸·Î ¹®ÀÚ¸¦ Ž»öÇÒ ¼ö ÀÖ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
It is often assumed that text regions in images are characterized by some distinctive or characteristic spatial frequencies. This feature is highly intuitive, and thus appealing as much. We propose a method of detecting horizontal texts in natural scene images. It is based on the use of two features that can be employed separately or in succession: the frequency of edge pixels across vertical and horizontal scan lines, and the fundamental frequency in the Fourier domain. We confirmed that the frequency features are language independent. Also addressed is the detection of quadrilaterals or approximate rectangles using Hough transform. Since texts that is meaningful to many viewers usually appear within rectangles with colors in high contrast to the background. Hence it is natural to assume the detection rectangles may be helpful for locating desired texts correctly in natural outdoor scene images. |
Å°¿öµå(Keyword) |
¿µ»óó¸®
ÆÐÅÏÀνÄ
ÅؽºÆ® °ËÃâ
°ø°£ ÁÖÆļö
¾ð¾î ½Äº°
Pattern recognition
Text location
Spatial frequency
Language identification
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