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    • 21. 发明授权
    • Method and apparatus for calculating effective volume of diesel particulate filter
    • 计算柴油微粒过滤器有效体积的方法和装置
    • US07603252B2
    • 2009-10-13
    • US12323389
    • 2008-11-25
    • Jae Yeon LeeYoungjun Roh
    • Jae Yeon LeeYoungjun Roh
    • G01B7/00
    • F01N11/00F01N9/002F01N2550/04F01N2560/07F01N2560/08F01N2900/0402F01N2900/08F01N2900/1606F02D41/029Y02T10/47
    • A method for calculating the effective volume of a diesel particulate filter invention may include: determining whether regeneration efficiency exists; determining, if regeneration efficiency exists, whether a learning condition of the ash coefficient is satisfied; detecting an exhaust flow amount Qexh if the learning condition of the ash coefficient is satisfied; calculating change of a pressure difference Δ(ΔPash(n)) caused by the ash; calculating change of an ash coefficient δ(a4) by using the change of the pressure difference Δ(ΔPash(n)) caused by the ash and the exhaust flow amount Qexh; calculating a current ash coefficient a4(n) by using the change of the ash coefficient δ(a4) and a previous ash coefficient a4(n-1); and calculating the effective volume Ve by using the current ash coefficient a4(n) and a first filter coefficient a1.
    • 用于计算柴油微粒过滤器发明的有效体积的方法可以包括:确定是否存在再生效率; 如果存在再生效率,则确定是否满足灰分系数的学习条件; 如果满足灰分系数的学习条件,则检测排气流量Qexh; 计算由灰分引起的压力差Delta(DeltaPash(n))的变化; 通过使用由灰分和排气流量Qexh引起的压差Delta(DeltaPash(n))的变化来计算灰分系数δ(a4)的变化; 通过使用灰分系数δ(a4)的变化和以前的灰分系数a4(n-1)计算当前灰分系数a4(n); 并使用当前灰分系数a4(n)和第一滤波器系数a1计算有效体积Ve。
    • 25. 发明授权
    • Method and apparatus for motion estimation using adaptive search pattern for video sequence compression
    • 用于视频序列压缩的自适应搜索模式的运动估计方法和装置
    • US07773673B2
    • 2010-08-10
    • US10532219
    • 2003-10-13
    • Kyu Seo HanByung Tae ChunJae Yeon LeeYun Koo ChungChieteuk Ahn
    • Kyu Seo HanByung Tae ChunJae Yeon LeeYun Koo ChungChieteuk Ahn
    • H04N7/18
    • H04N5/145H04N19/533H04N19/57
    • In a method for motion estimation using adaptive patterns in a video sequence compression system, an initial search pattern located at a center of a search window in a block of a video frame is determined. A location of a minimum block distortion measure (BDM) is searched in the initial search pattern. A horizontal search pattern for functioning on the search window is determined in the horizontal direction to search a location of a minimum BDM in the horizontal search pattern. A vertical search pattern for operating on the search window is determined in the vertical direction to search a location of a minimum BDM in the vertical search pattern. The location of the minimum BDM in each pattern is designated to be a motion vector. A search pattern to be used in a subsequent searching stage is determined based on the location of the minimum BDM in each pattern.
    • 在使用视频序列压缩系统中的自适应模式的运动估计方法中,确定位于视频帧块中搜索窗口中心的初始搜索模式。 在初始搜索模式中搜索最小块失真度量(BDM)的位置。 在水平方向上确定在搜索窗口上起作用的水平搜索模式,以搜索水平搜索模式中最小BDM的位置。 在垂直方向上确定用于在搜索窗口上操作的垂直搜索模式,以搜索垂直搜索模式中最小BDM的位置。 每个图案中最小BDM的位置被指定为运动矢量。 基于每个图案中最小BDM的位置来确定在随后的搜索阶段中使用的搜索模式。