Inventor
LLACH JOAN
FR55 patents
⚠️ This page may combine multiple inventors who share the name “LLACH JOAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
THOMSON LICENSING
11 patentsUS7680356B2Mar 16, 2010
Technique for bit-accurate comfort noise addition
THOMSON LICENSING31 citations92
US8346009B2Jan 1, 2013
Automatic exposure estimation for HDR images based on image statistics
THOMSON LICENSING9 citations84
US8023567B2Sep 20, 2011
Film grain simulation technique for use in media playback devices
THOMSON LICENSING11 citations84
US7889939B2Feb 15, 2011
Technique for simulating film grain using frequency filtering
THOMSON LICENSING7 citations84
US7738721B2Jun 15, 2010
Method and apparatus for modeling film grain patterns in the frequency domain
THOMSON LICENSING8 citations84
US7982743B2Jul 19, 2011
Method and apparatus for reading film grain patterns in a raster order in film grain simulation
THOMSON LICENSING6 citations74
US8345975B2Jan 1, 2013
Automatic exposure estimation for HDR images based on image statistics
THOMSON LICENSING4 citations63
US8014558B2Sep 6, 2011
Methods, apparatus and system for film grain simulation
THOMSON LICENSING1 citations63
US7945106B2May 17, 2011
Method for simulating film grain by mosaicing pre-computer samples
THOMSON LICENSING4 citations63
US7852409B2Dec 14, 2010
Bit-accurate seed initialization for pseudo-random number generators used in a video system
THOMSON LICENSING2 citations63
US9953401B2Apr 24, 2018
Apparatus and system for determining block averages for film grain simulation
THOMSON LICENSING0 citations52
INTERDIGITAL VC HOLDINGS INC
10 patentsUS11915456B2Feb 27, 2024
Method and device for encoding and reconstructing missing points of a point cloud
INTERDIGITAL VC HOLDINGS INC2 citations73
US12513316B2Dec 30, 2025
Processing the in-between points of a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations62
US12307727B2May 20, 2025
Method and device for encoding/reconstructing attributes of points of a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations62
US12132935B2Oct 29, 2024
Processing a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations62
US12094177B2Sep 17, 2024
Processing a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations62
US12067695B2Aug 20, 2024
Method and device for encoding/decoding the geometry of a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations61
US11625809B2Apr 11, 2023
Method and device for encoding/decoding the geometry of a point cloud
INTERDIGITAL VC HOLDINGS INC1 citations61
US10715834B2Jul 14, 2020
Film grain simulation based on pre-computed transform coefficients
INTERDIGITAL VC HOLDINGS INC0 citations52
US12136243B2Nov 5, 2024
Processing missing points of a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations51
US11533505B2Dec 20, 2022
Method for encoding/decoding texture of points of a point cloud
INTERDIGITAL VC HOLDINGS INC0 citations51
BHAGAVATHY SITARAM
6 patentsUS9602814B2Mar 21, 2017
Methods and apparatus for sampling-based super resolution video encoding and decoding
BHAGAVATHY SITARAM13 citations83
US8611728B2Dec 17, 2013
Video matting based on foreground-background constraint propagation
BHAGAVATHY SITARAM12 citations83
US8204334B2Jun 19, 2012
Adaptive pixel-based filtering
BHAGAVATHY SITARAM10 citations83
US9118912B2Aug 25, 2015
Object-aware video encoding strategies
BHAGAVATHY SITARAM8 citations81
US8467626B2Jun 18, 2013
Automatic parameter estimation for adaptive pixel-based filtering
BHAGAVATHY SITARAM4 citations62
US8532375B2Sep 10, 2013
Identifying banding in digital images
BHAGAVATHY SITARAM2 citations57
ZHAI JIEFU
4 patentsUS9087382B2Jul 21, 2015
Zone-based tone mapping
ZHAI JIEFU11 citations83
US10108314B2Oct 23, 2018
Method and system for displaying and processing high dynamic range video and images
ZHAI JIEFU2 citations72
US8639056B2Jan 28, 2014
Contrast enhancement
ZHAI JIEFU4 citations72
US11380270B2Jul 5, 2022
Signal generation for LED/LCD-based high dynamic range displays
ZHAI JIEFU0 citations51
GOMILA CRISTINA
3 patentsSOLE JOEL
2 patentsHUANG YU
2 patentsZHANG DONG-QING
2 patentsBOYCE JILL MACDONALD
2 patentsLLACH JOAN
2 patentsTOUZE DAVID
1 patentBARCONS-PALAU JESUS
1 patentWANG ZHE
1 patentCOOPER JEFFREY ALLEN
1 patentINTERDIGITAL CE PATENT HOLDINGS SAS
1 patentINTERDIGITAL MADISON PATENT HOLDINGS
1 patentShowing the top 50 of 55 patents by PatentIndex Score.