Joan Llach
54Patents
6h-index
28Co-inventors
72Inventor score
Filing activity: Apr 7, 2004 → Jan 24, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7680356B2 | Technique for bit-accurate comfort noise addition | Physics | 22 | Active |
| US9214030B2 | Method and apparatus for processing video sequences | Physics | 19 | Active |
| US9602814B2 | Methods and apparatus for sampling-based super resolution video encoding and decoding | Electricity | 12 | Active |
| US8391547B2 | Method and apparatus for detecting objects of interest in soccer video by color | Physics | 11 | Active |
| US8204334B2 | Adaptive pixel-based filtering | Physics | 9 | Active |
| US9087382B2 | Zone-based tone mapping | Physics | 7 | Active |
| US8346009B2 | Automatic exposure estimation for HDR images based on image statistics | Physics | 5 | Active |
| US7889939B2 | Technique for simulating film grain using frequency filtering | Physics | 5 | Active |
| US8611728B2 | Video matting based on foreground-background constraint propagation | Physics | 5 | Active |
| US9118912B2 | Object-aware video encoding strategies | Electricity | 5 | Active |
| US8023567B2 | Film grain simulation technique for use in media playback devices | Physics | 5 | Active |
| US8159606B2 | Method and apparatus for reversible, polynomial based image scaling | Physics | 5 | Active |
| US9554056B2 | Method of and device for encoding an HDR image, method of and device for reconstructing an HDR image and non-transitory storage medium | Electricity | 4 | Active |
| US7738721B2 | Method and apparatus for modeling film grain patterns in the frequency domain | Physics | 4 | Expired |
| US7982743B2 | Method and apparatus for reading film grain patterns in a raster order in film grain simulation | Physics | 4 | Active |
| US8472526B2 | Low-complexity film grain simulation technique | Physics | 4 | Active |
| US8447127B2 | Film grain simulation method | Physics | 3 | Active |
| US8467626B2 | Automatic parameter estimation for adaptive pixel-based filtering | Physics | 3 | Active |
| US8345975B2 | Automatic exposure estimation for HDR images based on image statistics | Physics | 3 | Active |
| US9813707B2 | Data pruning for video compression using example-based super-resolution | Electricity | 3 | Active |
| US9420291B2 | Methods and apparatus for reducing vector quantization error through patch shifting | Electricity | 2 | Active |
| US9336578B2 | Interactive tone mapping for high dynamic range video | Physics | 2 | Active |
| US8238613B2 | Technique for bit-accurate film grain simulation | Physics | 2 | Active |
| US9098916B2 | Bit-accurate film grain simulation method based on pre-computed transformed coefficients | Physics | 2 | Active |
| US7852409B2 | Bit-accurate seed initialization for pseudo-random number generators used in a video system | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.