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    Efficient frequency scalable video decoding with coefficient selection
    2.
    发明授权
    Efficient frequency scalable video decoding with coefficient selection 失效
    高效率可缩放视频解码与系数选择

    公开(公告)号：US5278646A

    公开(公告)日：1994-01-11

    申请号：US32582

    申请日：1993-03-17

    申请人： Mehmet R. Civanlar ,  Atul Puri

    发明人： Mehmet R. Civanlar ,  Atul Puri

    IPC分类号： H04N1/41 ,  G06T9/00 ,  H04N7/60 ,  H04N19/60 ,  H04N21/236 ,  H04N21/434 ,  H04N7/133

    CPC分类号： H04N21/236 ,  H04N19/37 ,  H04N21/434 ,  H04N19/124 ,  H04N19/13 ,  H04N19/132 ,  H04N19/30 ,  H04N19/60 ,  H04N19/91

    摘要： An improved technique for decoding wherein the number of coefficients to be included in each sub-block is selectable, and a code indicating the number of coefficients within each layer is inserted in the bitstream at the beginning of each encoded video sequence. This technique allows the original runs of zero coefficients in the highest resolution layer to remain intact by forming a sub-block for each scale from a selected number of coefficients along a continuous scan. These sub-blocks may be decoded in a standard fashion, with an inverse discrete cosine transform applied to square sub-blocks obtained by the appropriate zero padding of and/or discarding of excess coefficients from each of the scales. This technique further improves decoding efficiency by allowing an implicit end of block signal to separate blocks, making it unnecessary to decode an explicit end of block signal in most cases.

    摘要翻译： 一种用于解码的改进技术，其中要包括在每个子块中的系数的数量是可选择的，并且在每个编码的视频序列的开始处将指示每层内的系数数的代码插入比特流中。 该技术允许通过沿着连续扫描从选定数量的系数中为每个标度形成子块，使最高分辨率层中的零系数的原始运行保持不变。 可以以标准方式对这些子块进行解码，其中将逆离散余弦变换应用于通过从每个标度的适当的零填充和/或丢弃过量系数获得的平方子块。 该技术通过允许块信号的隐式结束来分离块来进一步提高解码效率，使得在大多数情况下不需要解码块信号的显式结束。

    Content adaptive telecine and interlace reverser
    5.
    发明授权
    Content adaptive telecine and interlace reverser 有权

    公开(公告)号：US09386265B2

    公开(公告)日：2016-07-05

    申请号：US14501736

    申请日：2014-09-30

    申请人： Sebastian Possos ,  Atul Puri

    发明人： Sebastian Possos ,  Atul Puri

    IPC分类号： H04N7/01

    CPC分类号： H04N7/0147 ,  H04N7/0112 ,  H04N7/0115 ,  H04N7/012

    摘要： Techniques related to processing a mixed content video stream to generate progressive video for encoding and/or display are discussed. Such techniques may include determining conversion techniques for various portions of the mixed content video stream and converting the portions based on the determined techniques. The conversion of true interlaced video include content adaptive interlace reversal and the conversion of pseudo-interlaced telecine converted video may include adaptive telecine pattern reversal.