Inventor · disambiguated record
Jeng-Nan Shiau
Also filed as: SHIAU JENG-NAN
47 granted patents·3 pending applications·2,315 citations·filing 1990–2006
99Inventor score
Top patents by PatentIndex Score
50 records- 0197US5293430AAutomatic image segmentation using local area maximum and minimum image signalsXEROX CORP·Filed 1993·Granted Mar 8, 1994·284 cites·21 claims
- 0295US7277191B2Fast efficient window region coalescing in a two-pass auto-windowing environmentXEROX CORP·Filed 2001·Granted Oct 2, 2007·98 cites·19 claims
- 0393US6222642B1System and method for eliminating background pixels from a scanned imageXEROX CORP·Filed 1998·Granted Apr 24, 2001·171 cites·21 claims
- 0493US5642202AScan image target locator system for calibrating a printing systemXEROX CORP·Filed 1994·Granted Jun 24, 1997·140 cites·17 claims
- 0589US6347153B1Method and system for classifying and processing of pixels of image dataXEROX CORP·Filed 1998·Granted Feb 12, 2002·115 cites·27 claims
- 0688US5515172AApparatus and method for enhanced color to color conversionXEROX CORP·Filed 1993·Granted May 7, 1996·94 cites·30 claims
- 0783US5765029AMethod and system for fuzzy image classificationXEROX CORP·Filed 1996·Granted Jun 9, 1998·77 cites·14 claims
- 0883US5341226AAutomatic image segmentation for color documentsXEROX CORP·Filed 1993·Granted Aug 23, 1994·59 cites·16 claims
- 0982US5850474AApparatus and method for segmenting and classifying image dataXEROX CORP·Filed 1996·Granted Dec 15, 1998·123 cites·4 claims
- 1081US5809177AHybrid error diffusion pattern shifting reduction using programmable threshold perturbationXEROX CORP·Filed 1996·Granted Sep 15, 1998·68 cites·19 claims
- 1181US5353127AMethod for quantization gray level pixel data with extended distribution setXEROX CORP·Filed 1993·Granted Oct 4, 1994·53 cites·16 claims
- 1280US6181829B1Method and system for classifying and processing of pixels of image dataXEROX CORP·Filed 1998·Granted Jan 30, 2001·64 cites·11 claims
- 1380US5852678ADetection and rendering of text in tinted areasXEROX CORP·Filed 1996·Granted Dec 22, 1998·64 cites·19 claims
- 1479US7009739B1Color to black and white converterXEROX CORP·Filed 2000·Granted Mar 7, 2006·16 cites·20 claims
- 1576US6137907AMethod and apparatus for pixel-level override of halftone detection within classification blocks to reduce rectangular artifactsXEROX CORP·Filed 1998·Granted Oct 24, 2000·53 cites·20 claims
- 1676US5608821AMethod of high addressability error diffusionXEROX CORP·Filed 1994·Granted Mar 4, 1997·38 cites·13 claims
- 1775US6144775AMethod and system for storing error values for an image conversion process utilizing dynamic error diffusionXEROX CORP·Filed 1997·Granted Nov 7, 2000·43 cites·4 claims
- 1874US5880857AError diffusion pattern shifting reduction through programmable threshold perturbationXEROX CORP·Filed 1996·Granted Mar 9, 1999·48 cites·21 claims
- 1973US6240205B1Apparatus and method for segmenting and classifying image dataXEROX CORP·Filed 1998·Granted May 29, 2001·81 cites·14 claims
- 2073US6175427B1System and method of tonal correction of independent regions on a compound documentXEROX CORP·Filed 1998·Granted Jan 16, 2001·57 cites·12 claims
- 2172US6185328B1Method and system for classifying and processing of pixels of image dataXEROX CORP·Filed 1998·Granted Feb 6, 2001·50 cites·3 claims
- 2270US6549658B1Method and system for classifying and processing of pixels of image dataXEROX CORP·Filed 1998·Granted Apr 15, 2003·80 cites·15 claims
- 2368US5553171AApparatus and method for arbitrary binary resolution conversionXEROX CORP·Filed 1995·Granted Sep 3, 1996·43 cites·14 claims
- 2468US5528384ASystem and method for implementing fast high addressability error diffusion processXEROX CORP·Filed 1994·Granted Jun 18, 1996·26 cites·17 claims
- 2567US6947597B2Soft picture/graphics classification system and methodXEROX CORP·Filed 2001·Granted Sep 20, 2005·21 cites·27 claims
- 2666US7239430B2Binary halftone detectionXEROX CORP·Filed 2002·Granted Jul 3, 2007·20 cites·19 claims
- 2766US6427030B1Method and system for image conversion utilizing dynamic error diffusionXEROX CORP·Filed 1994·Granted Jul 30, 2002·20 cites·15 claims
- 2866US5696601ASystem and method for redistributing error values from an error diffusion processXEROX CORP·Filed 1994·Granted Dec 9, 1997·24 cites·29 claims
- 2965US5960109ASingle pass marker enclosed area detection system and method for a photocopierXEROX CORP·Filed 1993·Granted Sep 28, 1999·23 cites·40 claims
- 3062US6535633B1Method and apparatus for re-classifying color image pixels classified by single channel segmentationXEROX CORP·Filed 1999·Granted Mar 18, 2003·33 cites·13 claims
- 3162US5933539AMethod and system for hybrid error diffusion processing of image information using programmable screen modulationXEROX CORP·Filed 1996·Granted Aug 3, 1999·26 cites·21 claims
- 3260US5710836ASystem and apparatus for tonal reproduction adjustment in an error diffusion processXEROX CORP·Filed 1994·Granted Jan 20, 1998·18 cites·16 claims
- 3359US6529291B1Fuzzy black color conversion using weighted outputs and matched tablesXEROX CORP·Filed 1999·Granted Mar 4, 2003·22 cites·18 claims
- 3459US5196942ASystem and method for determining picture element valuesXEROX CORP·Filed 1990·Granted Mar 23, 1993·19 cites·9 claims
- 3558US6229923B1Method and system for classifying and processing of pixels of image dataXEROX CORP·Filed 1998·Granted May 8, 2001·43 cites·19 claims
- 3657US6201613B1Automatic image enhancement of halftone and continuous tone imagesXEROX CORP·Filed 1998·Granted Mar 13, 2001·26 cites·29 claims
- 3756US7421143B2Systems and methods for optimal dynamic range adjustment of scanned imagesXEROX CORP·Filed 2004·Granted Sep 2, 2008·2 cites·14 claims
- 3856US5787206AMethod and system for processing image information using expanded dynamic screening and error diffusionXEROX CORP·Filed 1996·Granted Jul 28, 1998·19 cites·17 claims
- 3953US6249357B1System and apparatus for tonal reproduction curve adjustment in a hybrid error diffusion processXEROX CORP·Filed 1996·Granted Jun 19, 2001·16 cites·28 claims
- 4052US7724955B2Apparatus and method for auto windowing using multiple white thresholdsXEROX CORP·Filed 2005·Granted May 25, 2010·1 cites·15 claims
- 4151US7545540B2Method and system for processing color image dataXEROX CORP·Filed 2005·Granted Jun 9, 2009·1 cites·9 claims
- 4250US6525845B1Methods and apparatus for modifying image data based on identification of marking processXEROX CORP·Filed 1999·Granted Feb 25, 2003·13 cites·23 claims
- 4348US6347159B1Method and system for processing image information using screening and error diffusionXEROX CORP·Filed 1994·Granted Feb 12, 2002·10 cites·15 claims
- 4445US5903361AMethod and system for processing image information using background error diffusionXEROX CORP·Filed 1996·Granted May 11, 1999·10 cites·21 claims
- 4545US2006269132A1Apparatus and method for detecting white areas within windows and selectively merging the detected white areas into the enclosing windowXEROX CORP·Filed 2005·Application pending·0 cites
- 4642US7822290B2System and method for processing images with leaky windowsXEROX CORP·Filed 2005·Granted Oct 26, 2010·0 cites·19 claims
- 4742US7753466B2Device for manufacturing color printing and method using sameHON HAI PREC IND CO LTD·Filed 2006·Granted Jul 13, 2010·0 cites·20 claims
- 4840US2006269142A1Apparatus and method for subtyping window elements in a document windowing systemXEROX CORP·Filed 2005·Application pending·0 cites
- 4940US2005265600A1Systems and methods for adjusting pixel classification using background detectionXEROX CORP·Filed 2004·Application pending·0 cites
- 5032US6631215B1Method and apparatus for implementing integrated cavity effect correction in scannersXEROX CORP·Filed 1999·Granted Oct 7, 2003·3 cites·17 claims
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