Low noise encoding and decoding method

Details Low noise encoding and decoding method Low noise encoding and decoding method

2005-03-29

2005-03-29

Yenke, Brian P. (Department: 2614)

Television

Format conversion

C348S385100, C348S387100, C348S426100, C348S448000, C348S458000, C348S554000, C348S558000

Reexamination Certificate

active

06873368

ABSTRACT:
An adaptive digital image processor precedes an MPEG2 encoder. The processor receives a high definition video signal intended for broadcast or storage, and adaptively low-pass filters the signal. The signal is subjected to low-pass two-dimensional filtering to eliminate encoding artifacts and related noise. The video signal is then horizontally down-sampled to create a lower resolution hybrid signal. A receiver decodes and decompresses the hybrid signal. The hybrid signal is upsampled to its original resolution using existing hardware and software with a software modification.

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