Patent ID: 8055091
Filing Date: 2011-11-08
Classification: H04N

Abstract:
1. In a method of real-time pre-filtering of pixel groups of streaming video information on a video channel encoded under a predictive encoding standard and processed utilizing SIMD instructions to transform individual pixels of said pixel groups according to threshold values derived during said predictive encoding, said method comprising: obtaining statistical parameters from respective pixel groups of said streaming video information, generating, in real time, a pixel transformation filtering mask based on said statistical parameters, employing said filtering mask to said pixel groups in conjunction with SIMD instructions to transform individual pixels of said pixel groups of said streaming video information to produce a desired video output on the video channel in response to a value of statistical parameters exceeding a predetermined threshold value and otherwise passing the streaming video to the video channel without filtering when said threshold is not exceeded wherein coefficients of said filter mask are mapped to a respective threshold value and at least one statistical parameter comprises a number of non-zero quantized coefficients, encoding said pixel groups under said predictive coding, and sending said encoded pixel group over a video channel while continuing pre-filtering of said streaming video whereby to enable transmission of said encoded video information in real time.