Irwin Sobel
19Patents
10h-index
30Co-inventors
68Inventor score
Filing activity: Jul 31, 1997 → Jan 29, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6853398B2 | Method and system for real-time video communication within a virtual environment | Electricity | 134 | Expired |
| US5991438A | Color halftone error-diffusion with local brightness variation reduction | Electricity | 38 | Expired |
| US7038712B1 | Geometric and photometric calibration of cameras | Electricity | 29 | Expired |
| US6822762B2 | Local color correction | Physics | 26 | Expired |
| US5991512A | Ink relocation for color halftones | Electricity | 21 | Expired |
| US6813041B1 | Method and apparatus for performing local color correction | Physics | 19 | Expired |
| US8711198B2 | Video conference | Electricity | 19 | Active |
| US6941028B2 | System and method for image enhancement, dynamic range compensation and illumination correction | Physics | 18 | Expired |
| US7854518B2 | Mesh for rendering an image frame | Electricity | 14 | Active |
| US7800628B2 | System and method for generating scale maps | Physics | 13 | Active |
| US6882449B2 | Space varying gamut mapping | Electricity | 9 | Expired |
| US8228371B2 | Projection screen and camera array | Electricity | 7 | Active |
| US7006706B2 | Imaging apparatuses, mosaic image compositing methods, video stitching methods and edgemap generation methods | Physics | 6 | Expired |
| US6731822B1 | Method and apparatus for filtering images having insufficient tonal precision | Physics | 4 | Expired |
| US9413982B2 | System and method for video frame sequence control | Physics | 4 | Active |
| US6318265A | Inking system including reusable paper and water-humectant ink | Performing Operations; Transporting | 3 | Expired |
| US8625896B2 | Image matting | Electricity | 2 | Active |
| US9477348B2 | Focus-based touch and hover detection | Physics | 0 | Active |
| US11006101B2 | Viewing device adjustment based on eye accommodation in relation to a display | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.