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    • 7. 发明申请
    • METHOD AND APPARATUS OF DEBLOCKING FILTER
    • 阻塞滤波器的方法和装置
    • WO2012119540A1
    • 2012-09-13
    • PCT/CN2012/071977
    • 2012-03-06
    • MEDIATEK SINGAPORE PTE. LTD.AN, JichengGUO, XunHUANG, QianLEI, Shaw-Min
    • AN, JichengGUO, XunHUANG, QianLEI, Shaw-Min
    • H04N7/30
    • H04N19/117H04N19/14H04N19/176H04N19/86
    • A method and apparatus for improved deblocking filter are disclosed. In one embodiment according to the present invention, determining the non-zero transform coefficients existence for a PU-only boundary is skipped and therefore the deblocking filter for PU-only boundary is eliminated if the condition of boundary strength equal to 1 is not fulfilled to avoid unnecessary deblocking. In another embodiment of the present invention, three gradients are determined for two pixel lines and filter ON/OFF decision is made based on the three gradient values of the two pixel lines. One aspect of the invention is related to filter strength selection between strong and weak filters. According to one embodiment, the filter strength selection is based on various gradient values of a pixel line across the block boundary. Another aspect of the invention is related to the weak filter.
    • 公开了一种改进的去块滤波器的方法和装置。 在根据本发明的一个实施例中,对于仅PU边界确定非零变换系数存在被跳过,因此如果边界强度等于1的条件不满足于仅用于PU的边界的去块滤波器 避免不必要的解锁。 在本发明的另一实施例中,针对两个像素线确定三个梯度,并且基于两个像素线的三个梯度值来进行滤波器ON / OFF判定。 本发明的一个方面涉及强和弱滤波器之间的滤波强度选择。 根据一个实施例,滤波器强度选择基于跨越块边界的像素线的各种梯度值。 本发明的另一方面涉及弱滤波器。