Inventor · disambiguated record
Ricardo L. De Queiroz
Also filed as: DE QUEIROZ RICARDO · DE QUEIROZ RICARDO L · QUEIROZ RICARDO L DE · QUEIROZ RICHARD L DE
49 granted patents·1,574 citations·filing 1995–2018
99Inventor score
Top patents by PatentIndex Score
49 records- 0198US10694210B2Scalable point cloud compression with transform, and corresponding decompressionMICROSOFT TECHNOLOGY LICENSING LLC·Filed 2016·Granted Jun 23, 2020·35 cites·21 claims
- 0298US10223810B2Region-adaptive hierarchical transform and entropy coding for point cloud compression, and corresponding decompressionMICROSOFT TECHNOLOGY LICENSING LLC·Filed 2016·Granted Mar 5, 2019·52 cites·30 claims
- 0395US11297346B2Motion-compensated compression of dynamic voxelized point cloudsMICROSOFT TECHNOLOGY LICENSING LLC·Filed 2016·Granted Apr 5, 2022·11 cites·20 claims
- 0494US10262451B1View-dependent color compression8I LTD·Filed 2018·Granted Apr 16, 2019·15 cites·20 claims
- 0594US6058210AUsing encoding cost data for segmentation of compressed image sequencesXEROX CORP·Filed 1997·Granted May 2, 2000·187 cites·20 claims
- 0691US7070252B2System and method for digital watermarking in a calibrated printing pathXEROX CORP·Filed 2003·Granted Jul 4, 2006·50 cites·16 claims
- 0788US6334001B2Iterative smoothing technique for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratiosXEROX CORP·Filed 2000·Granted Dec 25, 2001·52 cites·12 claims
- 0887US5867598AMethod and apparatus for processing of a JPEG compressed imageXEROX CORP·Filed 1996·Granted Feb 2, 1999·103 cites·8 claims
- 0986US6707938B2Principal axis look-up for color correctionXEROX CORP·Filed 2000·Granted Mar 16, 2004·29 cites·15 claims
- 1086US5799112AMethod and apparatus for wavelet-based universal halftone image unscreeningXEROX CORP·Filed 1996·Granted Aug 25, 1998·91 cites·28 claims
- 1183US6097838AColor correction of a compressed imageXEROX CORP·Filed 1999·Granted Aug 1, 2000·66 cites·13 claims
- 1283US6009192AColor correction of a compressed imageXEROX CORP·Filed 1996·Granted Dec 28, 1999·67 cites·17 claims
- 1382US7391901B2Method for embedding color image information into a black-and-white imageXEROX CORP·Filed 2003·Granted Jun 24, 2008·21 cites·34 claims
- 1482US6373981B1Method and apparatus for segmenting data to create mixed raster content planesXEROX CORP·Filed 1998·Granted Apr 16, 2002·73 cites·4 claims
- 1580US7313696B2Method for authentication of JPEG image dataXEROX CORP·Filed 2002·Granted Dec 25, 2007·19 cites·12 claims
- 1679US7360093B2System and method for authentication of JPEG image dataXEROX CORP·Filed 2002·Granted Apr 15, 2008·26 cites·6 claims
- 1779US6275620B2Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratiosXEROX CORP·Filed 2000·Granted Aug 14, 2001·39 cites·6 claims
- 1879US6272255B2Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratiosXEROX CORP·Filed 2000·Granted Aug 7, 2001·38 cites·3 claims
- 1978US6646762B1Gamut mapping preserving local luminance differencesXEROX CORP·Filed 1999·Granted Nov 11, 2003·55 cites·16 claims
- 2077US7215817B2System and method for digital watermarking in a calibrated printing pathXEROX CORP·Filed 2003·Granted May 8, 2007·14 cites·34 claims
- 2176US6081211AMinimal buffering method and system for optimized encoding tables in JPEG compressionXEROX CORP·Filed 1998·Granted Jun 27, 2000·50 cites·23 claims
- 2274US5892854AAutomatic image registration using binary momentsXEROX CORP·Filed 1997·Granted Apr 6, 1999·57 cites·13 claims
- 2374US5854857AUsing encoding cost data for segmentation and background suppression in JPEG-compressed imagesXEROX CORP·Filed 1996·Granted Dec 29, 1998·46 cites·7 claims
- 2473US7590298B2Decompression with reduced ringing artifactsXEROX CORP·Filed 2006·Granted Sep 15, 2009·3 cites·20 claims
- 2572US6377706B1Compression framework incorporating decoding commandsXEROX CORP·Filed 1998·Granted Apr 23, 2002·51 cites·40 claims
- 2671US6954287B1Gamut mapping preserving local luminance differences with adaptive spatial filteringXEROX CORP·Filed 1999·Granted Oct 11, 2005·38 cites·11 claims
- 2771US6738524B2Halftone detection in the wavelet domainXEROX CORP·Filed 2000·Granted May 18, 2004·10 cites·15 claims
- 2870US7493489B2System and method for authentication of JPEG image dataXEROX CORP·Filed 2002·Granted Feb 17, 2009·9 cites·8 claims
- 2967US6195456B1Multi resolution color correction using wavelet transformsXEROX CORP·Filed 1996·Granted Feb 27, 2001·40 cites·16 claims
- 3064USH1684HFast preview processing for JPEG compressed imagesXEROX CORP·Filed 1995·Granted Oct 7, 1997·28 cites·6 claims
- 3158US6683994B1HVQ-based filtering methodXEROX CORP·Filed 2000·Granted Jan 27, 2004·8 cites·47 claims
- 3256US7106901B2Method and apparatus for image classificationXEROX CORP·Filed 2003·Granted Sep 12, 2006·10 cites·30 claims
- 3356US6563955B2Method and apparatus for analyzing image data to use multiple transforms for enhanced image data transmissionXEROX CORP·Filed 1998·Granted May 13, 2003·25 cites·16 claims
- 3455US6795211B1Resolution enhancement of compressed image dataXEROX CORP·Filed 1999·Granted Sep 21, 2004·23 cites·29 claims
- 3553US5838831ACompression of image data with retaining cost data for each compressed image blockXEROX CORP·Filed 1996·Granted Nov 17, 1998·16 cites·3 claims
- 3650US6778301B2Fast preview of CCITT-compressed documentsXEROX CORP·Filed 2000·Granted Aug 17, 2004·3 cites·15 claims
- 3749US7627761B2System for authentication of JPEG image dataXEROX CORP·Filed 2002·Granted Dec 1, 2009·3 cites·1 claims
- 3849US6175653B1Fast decompression and rotation for devices with asymmetric resolutionXEROX CORP·Filed 1998·Granted Jan 16, 2001·28 cites·18 claims
- 3947US6778707B1Method for decompressing JPEG files using a variable block size inverse discrete cosine transformXEROX CORP·Filed 1999·Granted Aug 17, 2004·11 cites·27 claims
- 4047US6075886AMethod and apparatus for reducing the complexity of color correction using subsamplingXEROX CORP·Filed 1998·Granted Jun 13, 2000·12 cites·19 claims
- 4146US6272251B1Fully automatic pasting of images into compressed pre-collated documentsXEROX CORP·Filed 1998·Granted Aug 7, 2001·15 cites·16 claims
- 4245US6219450B1Blocking signature detection for identification JPEG imagesXEROX CORP·Filed 1998·Granted Apr 17, 2001·10 cites·2 claims
- 4339US6611626B1Method of compressing JPEG files using a conditional transformXEROX CORP·Filed 1999·Granted Aug 26, 2003·6 cites·25 claims
- 4438US6385342B1Blocking signature detection for identification of JPEG imagesXEROX CORP·Filed 1998·Granted May 7, 2002·11 cites·28 claims
- 4537US6256416B1Blocking signature detection for identification of JPEG imagesXEROX CORP·Filed 1998·Granted Jul 3, 2001·5 cites·12 claims
- 4634US6195457B1Blocking signature detection for identification of JPEG imagesXEROX CORP·Filed 1998·Granted Feb 27, 2001·5 cites·5 claims
- 4733US6256421B1Method and apparatus for simulating JPEG compressionXEROX CORP·Filed 1998·Granted Jul 3, 2001·4 cites·17 claims
- 4832US7187805B1Maximum likelihood estimation of JPEG quantization valuesXEROX CORP·Filed 1999·Granted Mar 6, 2007·2 cites·22 claims
- 4932US6167153AMethod of compressing JPEG filesXEROX CORP·Filed 1998·Granted Dec 26, 2000·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →