Invention Grant
- Patent Title: Efficient spatial and temporal transform-based video preprocessing
- Patent Title (中): 高效的时空变换视频预处理
-
Application No.: US12479104Application Date: 2009-06-05
-
Publication No.: US08358380B2Publication Date: 2013-01-22
- Inventor: Joel W. Schoenblum , Larry S. McKinney
- Applicant: Joel W. Schoenblum , Larry S. McKinney
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Merchant & Gould
- Main IPC: H04N5/00
- IPC: H04N5/00 ; H04N7/12 ; H04N11/02 ; H04N11/04

Abstract:
In one method embodiment, receiving a first temporal sequence of video frames, the first temporal sequence corrupted with noise; frame matching the video frames according to a first stage of processing; denoising the matched frames according to a second stage of processing, the second stage of processing commencing responsive to completion of the first stage of processing for all of the video frames, the second stage of processing comprising overlapped block processing; and wherein denoising further comprises accumulating denoised pixels for each iteration of the overlapped block processing in a two-dimensional (2D)+c accumulation buffer, the 2D accumulation buffer corresponding to the denoised pixels corresponding to a reference frame of the video frames, where c comprises an integer number of non-reference frame buffers greater than or equal to zero.
Public/Granted literature
- US20100309379A1 EFFICIENT SPATIAL AND TEMPORAL TRANSFORM-BASED VIDEO PREPROCESSING Public/Granted day:2010-12-09
Information query