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1. 发明申请

WO2008140404A1 METHOD AND COMPUTER PROGRAM PRODUCT FOR IDENTIFYING A MALFUNCTIONING CYLINDER OF A MULTI-CYLINDER COMBUSTION ENGINE 审中-公开
标题翻译：识别多缸燃烧发动机故障气瓶的方法和计算机程序产品
公开(公告)号：WO2008140404A1
公开(公告)日：2008-11-20
申请号：PCT/SE2008/050521
申请日：2008-05-07
申请人： SCANIA CV AB (publ) , VÖLCKER, Björn
发明人： VÖLCKER, Björn
IPC分类号： F02M65/00 , F02D41/14 , G01M15/11
CPC分类号： G01M15/11 , F02D41/008 , F02D41/009 , F02D41/221 , F02D2041/288 , Y02T10/40
摘要： The invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 15Od, 150e, 15Of) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The method comprises the steps of: -generating a plurality of engine-speed values (r(t)) corresponding to at least one engine cycle of said engine; -transforming said engine-speed values (r(t)) so as generate transformed engine-speed values (FT(r(t))); -processing said transformed engine-speed values (FT(r(t))) so as to facilitate a subsequent identification step; -correlate said processed values (abs(FT(r(t)))) to at least one ordinal number; -comparing said processed values (abs(FT(r(t)))) associated with the at least one ordinal number with a predetermined threshold value (K); -identifying at least one malfunctioning fuel injector depending upon said comparison.
摘要翻译：本发明涉及一种用于识别与多缸内燃机（60）的单独气缸（Ca，Cb，Cc，Cd，Ce，Cf）相关联的故障燃料喷射器（150a，150b，150c，150d，150e，150f））。该方法包括以下步骤：产生与发动机的至少一个发动机循环对应的多个发动机转速值（r（t））; - 转换所述发动机转速值（r（t）），以产生变换后的发动机转速值（FT（r（t）））; - 处理所述变换的发动机速度值（FT（r（t））），以便于随后的识别步骤; - 将所述处理值（abs（FT（r（t））））与至少一个序数相关; 将与所述至少一个序数相关联的所述处理值（abs（FT（r（t）））与预定阈值（K）进行比较; - 根据所述比较来识别至少一个故障燃料喷射器。

2. 发明申请

WO2010142591A1 DETECTION AND SUPPRESSION OF FLICKER IN A SEQUENCE OF IMAGES 审中-公开
标题翻译：按图像序列检测和抑制闪烁
公开(公告)号：WO2010142591A1
公开(公告)日：2010-12-16
申请号：PCT/EP2010/057752
申请日：2010-06-02
申请人： GLOBAL IP SOLUTIONS (GIPS) AB , GLOBAL IP SOLUTIONS, INC. , VÖLCKER, Björn , KLEIJN, Willem, Bastiaan
发明人： VÖLCKER, Björn , KLEIJN, Willem, Bastiaan
IPC分类号： H04N5/44 , H04N5/235
CPC分类号： H04N5/2357 , H04N5/144 , H04N7/0132
摘要： The invention relates to a method, device and computer-program product for detection of undesired temporal variations (flicker) in a sequence of video frames. In one embodiment, frame-wise luminance means are compared with a reference level and the crossing frequency is compared with expected variation frequencies, such as frequencies associated with an illumination frequency through aliasing. The crossings count can be refined by introducing a latency zone around the reference level. In case of a positive detection of an undesired temporal variation, there is further provided a correction method, device and computer-program product using cumulated distribution functions. The visual detriment of flicker-induced saturation of pixels is alleviated either by brightening non-saturated pixels or by replacing the saturated pixels by randomly sampled values in accordance with a reference cumulated distribution function. The invention provides embodiments suitable for real-time processing of streamed video sequences.
摘要翻译：本发明涉及用于检测视频帧序列中不需要的时间变化（闪烁）的方法，设备和计算机程序产品。在一个实施例中，将逐帧亮度装置与参考电平进行比较，并将交叉频率与期望的变化频率（例如通过混叠的照明频率相关联的频率）进行比较。可以通过在参考级别周围引入延迟区域来改进交叉点计数。在不期望的时间变化的正检测的情况下，还提供了使用累积分布函数的校正方法，装置和计算机程序产品。通过增加非饱和像素或根据参考累积分布函数通过随机采样值替换饱和像素来减轻像素的闪烁引起的饱和度的视觉上的损害。本发明提供适用于流式视频序列的实时处理的实施例。

3. 发明申请

WO2011026839A1 FLICKER SUPPRESSION 审中-公开
标题翻译：闪烁抑制
公开(公告)号：WO2011026839A1
公开(公告)日：2011-03-10
申请号：PCT/EP2010/062717
申请日：2010-08-31
申请人： GLOBAL IP SOLUTIONS (GIPS) AB , GLOBAL IP SOLUTIONS, INC. , KLEIJN, Willem, Bastiaan , VÖLCKER, Björn
发明人： KLEIJN, Willem, Bastiaan , VÖLCKER, Björn
IPC分类号： H04N5/44 , H04N5/57 , H04N9/64 , H04N5/235 , G06T5/40
CPC分类号： H04N5/2357 , G06T5/002 , G06T5/40 , G06T2207/10016 , G06T2207/20076 , G06T2207/20182 , H04N5/57 , H04N7/0132 , H04N9/646 , H04N21/44
摘要： The invention relates to a method, device and computer-program product for suppression of undesired temporal variations, notably flicker, in a sequence of video frames. Histogram-based and similar approaches generally do not remove all flicker. Features that are resolved only in portions of the flicker cycle will manifest themselves as residual flicker. This effect is near-universal in bright regions of a scene. The inventive solution is a mapping that aims to resolve in the output only those features that are resolved in all frames of the flicker cycle. Use of time-maximal quantile values may preserve non-resolution of such image features that are unresolved due to intermittent bright saturation. Thus, in one embodiment, a reduction of resolution is attained by means of a pixel-value mapping based on selecting, over a time window, maximal and minimal quantile values, with maximal values being used for bright spatial regions and minimal values for dark spatial regions.
摘要翻译：本发明涉及一种用于在视频帧序列中抑制不需要的时间变化，特别是闪烁的方法，设备和计算机程序产品。基于直方图和类似方法通常不会消除所有的闪烁。仅在闪烁周期的部分中解决的特征将表现为残余闪烁。这种效果在场景的明亮区域是近乎普遍的。本发明的解决方案是旨在在输出中仅解析闪烁周期的所有帧中解析的那些特征的映射。使用时间 - 最大分位数值可以保留由于间歇性明亮饱和而未解决的这种图像特征的非分辨率。因此，在一个实施例中，通过基于在时间窗口上选择最大和最小分位数值的像素值映射来实现分辨率的降低，其中最大值用于亮空间区域和用于暗空间的最小值区域。

4. 发明申请

WO2008140403A1 METHOD AND COMPUTER PROGRAM PRODUCT FOR IDENTIFYING A MALFUNCTIONING CYLINDER OF A MULTI-CYLINDER COMBUSTION ENGINE 审中-公开
标题翻译：识别多缸燃烧发动机故障气瓶的方法和计算机程序产品
公开(公告)号：WO2008140403A1
公开(公告)日：2008-11-20
申请号：PCT/SE2008/050519
申请日：2008-05-07
申请人： SCANIA CV AB (publ) , VÖLCKER, Björn
发明人： VÖLCKER, Björn
IPC分类号： F02M65/00 , F02D41/14 , G01M15/11
CPC分类号： G01M15/11 , F02D41/008 , F02D41/009 , F02D41/221 , Y02T10/40
摘要： The present invention relates to a method for identifying a malfunctioning fuel injector (150a, 150b, 150c, 150d, 150e, 150f) associated with an individual cylinder (Ca, Cb, Cc, Cd, Ce, Cf) of a multicylinder combustion engine (60). The method comprises the step of generating a first data set (r(t)) comprising engine-speed values (rl-r20; rl-rl20) corresponding to at least one cylinder of said engine. The method also comprises the step of processing said first data set (r(t)) so as to generate a second data set (s(t)) depending upon said first data set (r(t)). The method further comprises the steps of processing said second data set (s(t)) so as to establish a detection value (d(t)), and comparing said detection value (d(t)) with a predetermined threshold value (K), and identifying at least one malfunctioning fuel injector depending upon said comparison, and weighting of said second data set by means of a weight vector during the step of establishing the detection value.
摘要翻译：本发明涉及一种用于识别与多缸内燃机的单独气缸（Ca，Cb，Cc，Cd，Ce，Cf）相关联的故障燃料喷射器（150a，150b，150c，150d，150e，150f）的方法 60）。该方法包括生成包括对应于所述发动机的至少一个气缸的发动机速度值（r 1-r 20; r 1 -r 1）的第一数据组（r（t））的步骤。该方法还包括根据所述第一数据集（r（t））处理所述第一数据集（r（t））以产生第二数据集（s（t））的步骤。该方法还包括以下步骤：处理所述第二数据集（s（t））以建立检测值（d（t）），并将所述检测值（d（t））与预定阈值），并且根据所述比较来识别至少一个故障燃料喷射器，以及在建立检测值的步骤期间通过加权矢量对所述第二数据组进行加权。

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