Inventor · disambiguated record
Pingshan Li
Also filed as: LI PINGSHAN
42 granted patents·2 pending applications·729 citations·filing 1999–2019
97Inventor score
Top patents by PatentIndex Score
44 records- 0197US8553093B2Method and apparatus for super-resolution imaging using digital imaging devicesWONG EARL QUONG·Filed 2008·Granted Oct 8, 2013·193 cites·20 claims
- 0297US8280194B2Reduced hardware implementation for a two-picture depth map algorithmWONG EARL QUONG·Filed 2008·Granted Oct 2, 2012·195 cites·20 claims
- 0396US8027582B2Autofocus with confidence measureSONY CORP·Filed 2009·Granted Sep 27, 2011·33 cites·20 claims
- 0493US8194995B2Fast camera auto-focusWONG EARL QUONG·Filed 2008·Granted Jun 5, 2012·24 cites·13 claims
- 0591US8335390B2Blur function modeling for depth of field renderingLI PINGSHAN·Filed 2010·Granted Dec 18, 2012·13 cites·24 claims
- 0691US8045046B1Four-dimensional polynomial model for depth estimation based on two-picture matchingSONY CORP·Filed 2010·Granted Oct 25, 2011·16 cites·20 claims
- 0790US8848094B2Optimal blur matching selection for depth estimationLI PINGSHAN·Filed 2012·Granted Sep 30, 2014·11 cites·33 claims
- 0889US8624986B2Motion robust depth estimation using convolution and wavelet transformsLI PINGSHAN·Filed 2011·Granted Jan 7, 2014·10 cites·20 claims
- 0988US7672508B2Image classification based on a mixture of elliptical color modelsSONY CORP·Filed 2006·Granted Mar 2, 2010·11 cites·38 claims
- 1085US10916019B2Moving object detection in image frames based on optical flow mapsSONY CORP·Filed 2019·Granted Feb 9, 2021·4 cites·17 claims
- 1185US6563957B1Tone dependent error diffusionHEWLETT PACKARD CO·Filed 1999·Granted May 13, 2003·85 cites·23 claims
- 1281US11037303B2Optical flow based detection and tracking of multiple moving objects in successive framesSONY CORP·Filed 2019·Granted Jun 15, 2021·3 cites·21 claims
- 1380US8736747B2Camera autofocus adaptive blur matching model fittingLI PINGSHAN·Filed 2012·Granted May 27, 2014·4 cites·22 claims
- 1480US8736707B2System and method for utilizing scene detection in a depth estimation procedureLI PINGSHAN·Filed 2012·Granted May 27, 2014·4 cites·17 claims
- 1580US8199248B2Two-dimensional polynomial model for depth estimation based on two-picture matchingLI PINGSHAN·Filed 2009·Granted Jun 12, 2012·6 cites·20 claims
- 1679US11085296B2Method for controlling subsidence area caused by underground mining in adjoining open-pit mineUNIV CHINA MINING·Filed 2017·Granted Aug 10, 2021·5 cites·4 claims
- 1779US7239726B2System and method for effectively extracting facial feature informationSONY ELECTRONICS INC·Filed 2002·Granted Jul 3, 2007·43 cites·42 claims
- 1878US9066002B2System and method for utilizing enhanced scene detection in a depth estimation procedureMIYAGI KENSUKE·Filed 2012·Granted Jun 23, 2015·4 cites·20 claims
- 1977US7155036B2Face detection under varying rotationSONY ELECTRONICS INC·Filed 2001·Granted Dec 26, 2006·36 cites·53 claims
- 2076US8564712B2Blur difference estimation using multi-kernel convolutionLI PINGSHAN·Filed 2011·Granted Oct 22, 2013·3 cites·20 claims
- 2175US9530214B2Image processing system with depth map determination based on iteration count of blur difference and method of operation thereofSONY CORP·Filed 2014·Granted Dec 27, 2016·2 cites·20 claims
- 2274US8229172B2Algorithms for estimating precise and relative object distances in a sceneWONG EARL·Filed 2009·Granted Jul 24, 2012·8 cites·40 claims
- 2373US9208570B2System and method for performing depth estimation by utilizing an adaptive kernelALI GAZI·Filed 2012·Granted Dec 8, 2015·2 cites·20 claims
- 2468US7734107B2System and method for performing wavelet-based texture feature extraction and classificationSONY CORP·Filed 2006·Granted Jun 8, 2010·4 cites·11 claims
- 2566US8929607B2System and method for performing depth estimation utilizing defocused pillbox imagesLI PINGSHAN·Filed 2012·Granted Jan 6, 2015·2 cites·20 claims
- 2665US10121093B2System and method for background subtraction in video contentSONY CORP·Filed 2017·Granted Nov 6, 2018·1 cites·20 claims
- 2763US8411195B2Focus direction detection confidence system and methodLI PINGSHAN·Filed 2011·Granted Apr 2, 2013·1 cites·24 claims
- 2861US9161010B2System and method for generating robust depth maps utilizing a multi-resolution procedureALI GAZI·Filed 2012·Granted Oct 13, 2015·1 cites·20 claims
- 2960US9723197B2Depth estimation from image defocus using multiple resolution Gaussian differenceSONY CORP·Filed 2015·Granted Aug 1, 2017·1 cites·20 claims
- 3058US7609891B2Evaluation of element distribution within a collection of images based on pixel scatternessSONY CORP·Filed 2005·Granted Oct 27, 2009·3 cites·21 claims
- 3156US9418432B2Imaging system with depth estimation mechanism and method of operation thereofSONY CORP·Filed 2014·Granted Aug 16, 2016·1 cites·16 claims
- 3252US9262833B2Methodology for performing depth estimation with defocused images under extreme lighting conditionsLI PINGSHAN·Filed 2012·Granted Feb 16, 2016·0 cites·12 claims
- 3349US10432853B2Image processing for automatic detection of focus areaSONY CORP·Filed 2017·Granted Oct 1, 2019·0 cites·28 claims
- 3448US10122912B2Device and method for detecting regions in an imageSONY CORP·Filed 2017·Granted Nov 6, 2018·0 cites·19 claims
- 3548US9020280B2System and method for evaluating focus direction under various lighting conditionsLI PINGSHAN·Filed 2012·Granted Apr 28, 2015·0 cites·20 claims
- 3647US9646225B2Defocus estimation from single image based on Laplacian of Gaussian approximationSONY CORP·Filed 2015·Granted May 9, 2017·0 cites·21 claims
- 3746US9715721B2Focus detectionSONY CORP·Filed 2015·Granted Jul 25, 2017·0 cites·22 claims
- 3845US8179474B2Fast iterative motion estimation method on gradually changing imagesMIYAGI KENSUKE·Filed 2009·Granted May 15, 2012·0 cites·47 claims
- 3944US10242288B2Method and system for video processingSONY CORP·Filed 2016·Granted Mar 26, 2019·0 cites·25 claims
- 4044US8463037B2Detection of low contrast for image processingMIYAGI KENSUKE·Filed 2011·Granted Jun 11, 2013·0 cites·13 claims
- 4144US2014132822A1Multi-resolution depth-from-defocus-based autofocusSONY CORP·Filed 2012·Application pending·0 cites
- 4241US9781412B2Calibration methods for thick lens modelSONY CORP·Filed 2015·Granted Oct 3, 2017·0 cites·24 claims
- 4339US2018293735A1Optical flow and sensor input based background subtraction in video contentSONY CORP·Filed 2017·Application pending·0 cites
- 4436US9639946B2Image processing system with hybrid depth estimation and method of operation thereofSONY CORP·Filed 2015·Granted May 2, 2017·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →