U . S . Patent Jul . 3 , 2007 Sheet 2 of 10 AI - - - - d US 7 , 239 , 751 B 1
نویسنده
چکیده
Iso, Jiang et al., “A fast approach to the detection and correction of skew documents,” Pattern Recognition Letters, Vol. 18, pp. 675-686 (1997). Avanindra et al., “Robust detection of skew in documented images,” IEEE Trans. Image Processing, vol. 6, pp. 344-349, Feb. 1997. Wallack and Maocha, Robust Algorithms for Object Localizaiton. International Journal of Computer Vision, 27(3):243-262, 1998. &io Kimura and Takashi Watanabe., “An Extension of the Generalized Hough Transform to Realize Affine-Invariant Twodimensional(2D) Shape Detection” IEEE 2002. Kimura, Akio, “Generalized Hough Transform to be Extended as an Affine-invariant Detector of Arbi tw Shapes,” IEICE, vol. J84-D-11, No. 5 2001. (in Japanese). Kimura, &io, “Fast Generalized Hough Transform that Improves its Robustness of Shape Detection,” IEICE, vol. J83-D-11, No. 5, 2000. (in Japanese).
منابع مشابه
U S . Patent May 7 , 2002 Sheet 1 of 8 US 6 , 385 , 509 B 2
(51) Int. C1.7 ................................................ G05B 15/00 (52) U.S. C1. ....................... 700/260; 7001245; 7001248; 7001257; 7001262; 7001263; 901127; 901128; 901130; 901134; 901136; 6001595; 6011130; 341120; 3451157; 3451161 (58) Field of Search ................................. 7001245, 248, 7001257, 260, 262, 263; 901127, 28, 30, 34, 36; 6001595; 6061130; 341120; 3451...
متن کاملU S . Patent Jul . 6 , 2004 Sheet 2 of 8 US 6 , 760 , 487 B 1 LPFj 1 0 27 t
The invention presents The Estimated Spectrum Adaptive Postfilter (ESAP) and the Iterative Prepost Filter (IPF) algorithms. These algorithms model a number of imageadaptive post-filtering and pre-post filtering methods. They are designed to minimize Discrete Cosine Transform (DCT) blocking distortion caused when images are highly compressed with the Joint Photographic Expert Group (JPEG) standa...
متن کاملU . S . Patent Dec . 11 , 2007 Sheet 1 of 4 US 7 , 306 , 930 B 2 Tb I Tb - DPA
4,560,665 A 4,943,522 A 4,965,211 A 5,124,268 A 5,792,330 A 5,830,769 A 5,876,960 A 6,136,549 A 6,242,268 B1 6,569,630 B1 6,599,715 B1 2002/0135772 A1 2003/0064427 A1 2003/0138876 A1 2004/0014154 A1 12/ 1985 7/1990 10/1990 6/1992 8/1998 11/1998 3/1999 10/2000 6/200 1 5/2003 7/2003 9/2002 4/2003 7/2003 1/2004 Nakae et al. ............... 436/172 Eisinger et al. ............ 435/7.25 Wieder et al...
متن کاملU S . Patent Apr . 27 , 2004 I Sheet 1 of 4 1 US 6 , 728 , 666 B 1 7
5,258,947 A * 1111993 Sourgen ...................... 365196 5,677,691 A * 1011997 Hosticka et al. .............. 326139 5,705,938 A * 111998 Kean ........................... 326139 5,959,871 A * 911999 Pierzchala et al. .......... 3271565 5,970,487 A * 1011999 Shackleford et al. ......... 706113 6,360,191 B1 * 312002 Koza et al. ................... 703114 6,363,517 B1 * 312002 Levi et al. ........
متن کاملU . S . Patent Dec . 25 , 2012 Sheet 1 of 12 US 8 , 340 , 435 B 2 Calculated weights
6,980,697 B1 * 12/2005 Basso et al .................... 382/274 7,171,023 B2 1/2007 Kim et al. 7,177,446 B2 * 2/2007 Magarey ....................... 382/103 7,403,652 B2 7/2008 Boncyk et al. 7,940,956 B2 * 5/2011 Kinoshita et al .............. 382/103 7,957,557 B2 * 6/2011 Otsu et al ...................... 382/103 7,996,409 B2 * 8/2011 Hsu et al ....................... 707/748 8,170,280 B2 * 5/...
متن کامل