Invention Grant
US08237868B2 Systems and methods for adaptive spatio-temporal filtering for image and video upscaling, denoising and sharpening
失效
用于图像和视频放大，去噪和锐化的自适应时空滤波的系统和方法
- Patent Title: Systems and methods for adaptive spatio-temporal filtering for image and video upscaling, denoising and sharpening
- Patent Title (中): 用于图像和视频放大，去噪和锐化的自适应时空滤波的系统和方法
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Application No.: US12414524Application Date: 2009-03-30
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Publication No.: US08237868B2Publication Date: 2012-08-07
- Inventor: Hiroyuki Takeda , Petrus J. L. Van Beek
- Applicant: Hiroyuki Takeda , Petrus J. L. Van Beek
- Applicant Address: US WA Camas
- Assignee: Sharp Laboratories of America, Inc.
- Current Assignee: Sharp Laboratories of America, Inc.
- Current Assignee Address: US WA Camas
- Agency: Austin Rapp & Hardman
- Main IPC: H04N5/21
- IPC: H04N5/21 ; H04N1/409
Abstract:
A method for adaptive spatio-temporal filtering is disclosed. Local motion vectors between a current video frame and other nearby video frames are determined. Local motion-aligned temporal confidence parameters are determined. Local spatial orientation parameters are determined. The local motion vectors, the local motion-aligned temporal confidence parameters, and the local spatial orientation parameters are used to adaptively determine spatio-temporal kernel weights. The spatio-temporal kernel weights are used to perform spatio-temporal filtering on input video data.
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