Inventor · Redmond, WA, US

Shijun Sun

116Patents
24h-index
37Co-inventors
90Inventor score

Filing activity: Dec 18, 1998 → Feb 21, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US6731799B1 Object segmentation with background extraction and moving boundary techniques Physics 427 Expired
US6480615B1 Motion estimation within a sequence of data frames using optical flow with adaptive gradients Physics 106 Expired
US7450641B2 Adaptive filtering based upon boundary strength Electricity 95 Expired
US6677868B2 Entropy coding with adaptive syntax to replace high probability symbols with lower probabilities symbols Electricity 73 Expired
US7650036B2 System and method for three-dimensional video coding Electricity 66 Active
US7236524B2 Methods and systems for image intra-prediction mode communication Electricity 64 Expired
US6546117B1 Video object segmentation using active contour modelling with global relaxation Physics 59 Expired
US7386048B2 Methods and systems for image intra-prediction mode organization Electricity 59 Expired
US6535632B1 Image processing in HSI color space using adaptive noise filtering Physics 58 Expired
US8213503B2 Skip modes for inter-layer residual video coding and decoding Electricity 49 Active
US6931063B2 Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding Electricity 44 Expired
US6912310B1 Video object segmentation using active contour model with directional information Physics 43 Expired
US7535383B2 Methods and systems for signaling multi-layer bitstream data Electricity 43 Active
US8606009B2 High dynamic range image generation and rendering Electricity 40 Active
US7289672B2 Methods and systems for image intra-prediction mode estimation Electricity 39 Expired
US7889790B2 Method and apparatus for dynamically adjusting quantization offset values Electricity 33 Active
US7961963B2 Methods and systems for extended spatial scalability with picture-level adaptation Electricity 31 Active
US7352812B2 Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding Electricity 29 Expired
US8233538B2 Methods and systems for image intra-prediction mode management Electricity 29 Active
US7929610B2 Methods and systems for reducing blocking artifacts with reduced complexity for spatially-scalable video coding Electricity 29 Active
US8331450B2 Methods and systems for image intra-prediction mode management Electricity 29 Active
US8279927B2 Methods and systems for image intra-prediction mode management Electricity 28 Active
US7613240B2 Adaptive filtering based upon boundary strength Electricity 26 Expired
US7006255B2 Adaptive image filtering based on a distance transform Physics 25 Expired
US7227896B2 Method and apparatus for global motion estimation Electricity 23 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.