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专利名称：Systems for MPEG subsample decoding发明人：John A. Tardif申请号：US09870300申请日：20010530
公开号：US20020154700A1公开日：20021024
专利附图：
摘要：Decimating MPEG or other video data by subsampling the output of an inversediscrete cosine transform (IDCT) module. The decimation process is useful for reducingthe volume of data that must be processed to display images on a display device,particularly when the volume of video data received at the decoder is greater than the
amount needed to take advantage of the resolution of the display device. For example,high definition television data can be decimated for display on a standard televisiondisplay device or in a picture-in-picture window, thereby reducing the amount of
processing resources needed at the decoder and reducing the size of the frame buffers.Subsampling the output of the IDCT module reduces the volume of data and, forrelatively static or constant pans, there is not a significant compounded loss of imagequality as successive frames are decoded.
申请人：TARDIF JOHN A.
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