Inventor

DE QUEIROZ RICARDO L

US46 patents

⚠️ This page may combine multiple inventors who share the name “DE QUEIROZ RICARDO L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DE QUEIROZ RICARDO L

XEROX CORP

Using encoding cost data for segmentation of compressed image sequences

Method and apparatus for processing of a JPEG compressed image

Gamut mapping preserving local luminance differences

Method and apparatus for segmenting data to create mixed raster content planes

Color correction of a compressed image

Color correction of a compressed image

Automatic image registration using binary moments

Method and apparatus for wavelet-based universal halftone image unscreening

System and method for authentication of JPEG image data

Gamut mapping preserving local luminance differences with adaptive spatial filtering

Resolution enhancement of compressed image data

Principal axis look-up for color correction

Compression framework incorporating decoding commands

Iterative smoothing technique for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios

Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios

Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios

Multi resolution color correction using wavelet transforms

Fast decompression and rotation for devices with asymmetric resolution

Using encoding cost data for segmentation and background suppression in JPEG-compressed images

Fast preview processing for JPEG compressed images

Method for embedding color image information into a black-and-white image

System and method for digital watermarking in a calibrated printing path

Minimal buffering method and system for optimized encoding tables in JPEG compression

System and method for authentication of JPEG image data

Method for authentication of JPEG image data

System and method for digital watermarking in a calibrated printing path

Fully automatic pasting of images into compressed pre-collated documents

Method and apparatus for image classification

Method for decompressing JPEG files using a variable block size inverse discrete cosine transform

Halftone detection in the wavelet domain

Blocking signature detection for identification JPEG images

Method and apparatus for reducing the complexity of color correction using subsampling

Compression of image data with retaining cost data for each compressed image block

HVQ-based filtering method

System for authentication of JPEG image data

Maximum likelihood estimation of JPEG quantization values

Fast preview of CCITT-compressed documents

Method of compressing JPEG files using a conditional transform

Method and apparatus for simulating JPEG compression

Blocking signature detection for identification of JPEG images

Blocking signature detection for identification of JPEG images

Method of compressing JPEG files

MICROSOFT TECHNOLOGY LICENSING LLC

Region-adaptive hierarchical transform and entropy coding for point cloud compression, and corresponding decompression

Scalable point cloud compression with transform, and corresponding decompression

Motion-compensated compression of dynamic voxelized point clouds

Motion-compensated compression of dynamic voxelized point clouds