Shawmin Lei
57Patents
17h-index
20Co-inventors
84Inventor score
Filing activity: Nov 7, 1996 → Feb 22, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7450641B2 | Adaptive filtering based upon boundary strength | Electricity | 95 | Expired |
| US7650036B2 | System and method for three-dimensional video coding | Electricity | 66 | Active |
| US6931063B2 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding | Electricity | 44 | Expired |
| US6707952B1 | Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression | Physics | 39 | Expired |
| US7035473B1 | Distortion-adaptive visual frequency weighting | Electricity | 39 | Expired |
| US6792129B1 | Digital watermarking in a perceptually uniform domain | Physics | 35 | Expired |
| US6658162B1 | Image coding method using visual optimization | Physics | 34 | Expired |
| US7352812B2 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding | Electricity | 29 | Expired |
| US6130911A | Method and apparatus for compressing reference frames in an interframe video codec | Electricity | 29 | Expired |
| US7613240B2 | Adaptive filtering based upon boundary strength | Electricity | 26 | Expired |
| US7006255B2 | Adaptive image filtering based on a distance transform | Physics | 25 | Expired |
| US8000390B2 | Methods and systems for efficient prediction-mode selection | Electricity | 23 | Active |
| USRE43628E1 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding | General | 22 | Active |
| US5956458A | System and method for determining representative frames of video captured by a video camera | Physics | 21 | Expired |
| US7440501B2 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding | Electricity | 19 | Expired |
| USRE44497E1 | Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding | General | 19 | Active |
| US7787542B2 | Adaptive filtering based upon boundary strength | Electricity | 18 | Active |
| US8040957B2 | Adaptive filtering based upon boundary strength | Electricity | 16 | Active |
| US7907667B2 | Adaptive filtering based upon boundary strength | Electricity | 14 | Active |
| US7242717B2 | Wavelet domain motion compensation system | Electricity | 12 | Expired |
| US7684639B2 | Methods and systems for automatic digital image enhancement | Physics | 11 | Active |
| US8194997B2 | Methods and systems for tone mapping messaging | Electricity | 10 | Active |
| US6807312B2 | Robust codebooks for vector quantization | Physics | 10 | Expired |
| US7050500B2 | Method and apparatus for motion vector coding with global motion parameters | Electricity | 8 | Expired |
| US8036270B2 | Intra-frame flicker reduction in video coding | Electricity | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.