Inventor

LI PINGSHAN

US42 patents

⚠️ This page may combine multiple inventors who share the name “LI PINGSHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LI PINGSHAN

SONY CORP

Autofocus with confidence measure

Image classification based on a mixture of elliptical color models

Four-dimensional polynomial model for depth estimation based on two-picture matching

Optical flow based detection and tracking of multiple moving objects in successive frames

Moving object detection in image frames based on optical flow maps

Image processing system with depth map determination based on iteration count of blur difference and method of operation thereof

System and method for performing wavelet-based texture feature extraction and classification

Evaluation of element distribution within a collection of images based on pixel scatterness

Image processing for automatic detection of focus area

Device and method for detecting regions in an image

System and method for background subtraction in video content

Defocus estimation from single image based on Laplacian of Gaussian approximation

Depth estimation from image defocus using multiple resolution Gaussian difference

Focus detection

Imaging system with depth estimation mechanism and method of operation thereof

Method and system for video processing

Image processing system with hybrid depth estimation and method of operation thereof

Calibration methods for thick lens model

LI PINGSHAN

Optimal blur matching selection for depth estimation

Motion robust depth estimation using convolution and wavelet transforms

Blur function modeling for depth of field rendering

Camera autofocus adaptive blur matching model fitting

System and method for utilizing scene detection in a depth estimation procedure

Two-dimensional polynomial model for depth estimation based on two-picture matching

Blur difference estimation using multi-kernel convolution

System and method for performing depth estimation utilizing defocused pillbox images

Methodology for performing depth estimation with defocused images under extreme lighting conditions

Focus direction detection confidence system and method

System and method for evaluating focus direction under various lighting conditions

WONG EARL QUONG

Method and apparatus for super-resolution imaging using digital imaging devices

Reduced hardware implementation for a two-picture depth map algorithm

Fast camera auto-focus

MIYAGI KENSUKE

System and method for utilizing enhanced scene detection in a depth estimation procedure

Detection of low contrast for image processing

Fast iterative motion estimation method on gradually changing images

SONY ELECTRONICS INC

System and method for effectively extracting facial feature information

Face detection under varying rotation

ALI GAZI

System and method for performing depth estimation by utilizing an adaptive kernel

System and method for generating robust depth maps utilizing a multi-resolution procedure

HEWLETT PACKARD CO

Tone dependent error diffusion

WONG EARL

Algorithms for estimating precise and relative object distances in a scene

UNIV CHINA MINING

Method for controlling subsidence area caused by underground mining in adjoining open-pit mine