Inventor
HUTTENLOCHER DANIEL P
US24 patents
Patents
24 patentsUS5884014AMar 16, 1999
Fontless structured document image representations for efficient rendering
XEROX CORP181 citations99
US6449718B1Sep 10, 2002
Methods and apparatus for partial encryption of tokenized documents
XEROX CORP88 citations98
US6249604B1Jun 19, 2001
Method for determining boundaries of words in text
XEROX CORP132 citations98
US6011905AJan 4, 2000
Using fontless structured document image representations to render displayed and printed documents at preferred resolutions
XEROX CORP249 citations98
US5748805AMay 5, 1998
Method and apparatus for supplementing significant portions of a document selected without document image decoding with retrieved information
XEROX CORP231 citations98
US5539841AJul 23, 1996
Method for comparing image sections to determine similarity therebetween
XEROX CORP153 citations98
US5321770AJun 14, 1994
Method for determining boundaries of words in text
XEROX CORP178 citations98
US5491760AFeb 13, 1996
Method and apparatus for summarizing a document without document image decoding
XEROX CORP104 citations97
US5410611AApr 25, 1995
Method for identifying word bounding boxes in text
XEROX CORP111 citations97
US5390259AFeb 14, 1995
Methods and apparatus for selecting semantically significant images in a document image without decoding image content
XEROX CORP115 citations97
US5687253ANov 11, 1997
Method for comparing word shapes
XEROX CORP66 citations96
US5557689ASep 17, 1996
Optical word recognition by examination of word shape
XEROX CORP89 citations96
US5513277AApr 30, 1996
Measuring character and stroke sizes and spacings for an image
XEROX CORP58 citations96
US5245674ASep 14, 1993
Image processing using distance as a function of direction
XEROX CORP77 citations96
US6275301B1Aug 14, 2001
Relabeling of tokenized symbols in fontless structured document image representations
XEROX CORP71 citations95
US5325444AJun 28, 1994
Method and apparatus for determining the frequency of words in a document without document image decoding
XEROX CORP83 citations94
US6529285B2Mar 4, 2003
Relabelling of tokenized symbols in fontless structured document image representations
XEROX CORP21 citations92
US5640466AJun 17, 1997
Method of deriving wordshapes for subsequent comparison
XEROX CORP49 citations92
US5416851AMay 16, 1995
Image analysis based on location sampling
XEROX CORP24 citations92
US5384863AJan 24, 1995
Methods and apparatus for automatic modification of semantically significant portions of a document without document image decoding
XEROX CORP49 citations92
US5253307AOct 12, 1993
Image analysis to obtain typeface information
XEROX CORP52 citations92
US5835638ANov 10, 1998
Method and apparatus for comparing symbols extracted from binary images of text using topology preserved dilated representations of the symbols
XEROX CORP44 citations90
US6295371B1Sep 25, 2001
Method and apparatus for image processing employing image segmentation using tokenization
XEROX CORP47 citations89
US6373997B1Apr 16, 2002
Coarse and fine skew measurement
XEROX CORP11 citations73