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公开(公告)号：US07589837B2
公开(公告)日：2009-09-15
申请号：US11606985
申请日：2006-12-01
IPC分类号： G01J3/46
CPC分类号： G01N21/274 , G01J3/52 , G01J3/524 , G01N21/278
摘要： A new calibration method for a spectrophotometer or a color sensor is provided using multiple color tiles with known reflectances. This procedure uses multiple reference standard tiles, in addition to, the standard white tile and substitutes a wavelength dependent adjustment constant instead of the dark noise reading. The constant is computed using measurements of multiple reference tiles with known reflectance spectra, and its purpose is to weight the sensor readings in order to avoid ill-posed scaling caused by physical limitations such as less than ideal light sources. A scaling factor may be calculated and also used to compute the reflectance of an arbitrary object. A device for carrying out the method is also provided.
摘要翻译： 使用具有已知反射率的多个彩色瓷砖提供了用于分光光度计或颜色传感器的新的校准方法。 该过程除了标准白色瓦片之外还使用多个参考标准瓦片，并替代波长相关的调整常数而不是暗噪声读数。 使用具有已知反射光谱的多个参考瓦片的测量来计算常数，并且其目的是为了避免由诸如不理想的光源的物理限制引起的不适当的缩放来加权传感器读数。 可以计算缩放因子并且还用于计算任意对象的反射率。 还提供了一种用于执行该方法的装置。
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公开(公告)号：US07333208B2
公开(公告)日：2008-02-19
申请号：US11016952
申请日：2004-12-20
CPC分类号： G01N21/255 , G01J3/02 , G01J3/0218 , G01J3/0256 , G01J3/26
摘要： Apparatus and methods are provided for implementing a full width array material scanning spectrophotometer by integrating a Fabry-Perot cavity filter with a silicon photodetector and a light focusing device (an optical guide or a SELFOC® lens). The material to be scanned is illuminated by a broad band illumination source (white LEDs or a fluorescence light source). The Fabry-Perot cavity gap can be tuned electromechanically to get multiple measurements to resolve the spectral distribution of the transmitted light signal. The array spectrophotometric architecture facilitates an elongated, substantially linear band detection and the associated spectral reconstruction technique resolves spectral distribution in the presence of multiple resonant peaks.
摘要翻译： 提供了通过将法布里 - 珀罗腔滤波器与硅光电检测器和光聚焦装置（光导或透镜）集成来实现全宽阵列材料扫描分光光度计的装置和方法。 待扫描的材料由宽带照明源（白色LED或荧光光源）照明。 法布里 - 珀罗腔间隙可以机电调整以获得多次测量，以解决透射光信号的光谱分布。 阵列分光光度结构有助于细长的，基本上线性的带检测，并且相关的光谱重建技术在存在多个共振峰的情况下解决了光谱分布。
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公开(公告)号：US07224883B2
公开(公告)日：2007-05-29
申请号：US11094408
申请日：2005-03-31
申请人： Peter M. Gulvin , Yao Rong Wang , Jun Ma , Kathleen A. Feinberg , Pinyen Lin
发明人： Peter M. Gulvin , Yao Rong Wang , Jun Ma , Kathleen A. Feinberg , Pinyen Lin
IPC分类号： G02B6/00
CPC分类号： G02B6/3508 , G02B6/357 , G02B6/358
摘要： An optical switch for routing signals includes a latch receiver connected to a waveguide that routes the signals and an actuator that includes an upper plate, a lower plate and a latch connected to the lower plate, the lower plate of the actuator moving vertically when power is applied to the lower plate, causing the latch to move vertically and engage the latch receiver. A latching system includes a switch that includes a latch formed to include an extension on one end of the latch, the latch being driven by power, a latch receiver that is formed to receive the latch and a controller that controls the extension of the latch to engage the latch receiver when the power is applied to the latch, and controls the extension of the latch to lock in place against the latch receiver when the power is removed from the latch.
摘要翻译： 用于路由信号的光学开关包括连接到路由信号的波导的闩锁接收器和包括连接到下板的上板，下板和闩锁的致动器，致动器的下板在功率为 施加到下板，使得闩锁垂直移动并接合闩锁接收器。 闭锁系统包括开关，其包括形成为在闩锁的一端包括延伸部的闩锁，闩锁由电力驱动，形成为接收闩锁的闩锁接收器和控制闩锁延伸到 当电源被施加到闩锁时，将闩锁接收器接合，并且当电源从闩锁移除时，控制闩锁的延伸以锁定到锁定接收器上。
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84.发明授权Sensorless quality control apparatus used upon malfunction of a quality control sensor and method therefor 失效用于质量控制传感器故障时使用的无传感器质量控制装置及其方法
公开(公告)号：US6021285A
公开(公告)日：2000-02-01
申请号：US83141
申请日：1998-05-22
CPC分类号： G03G15/55 , H04N1/00002 , H04N1/00015 , H04N1/00034 , H04N1/00037 , H04N1/00082 , G03G2215/00042
摘要： An image quality control apparatus controls quality of xerographic images formed by a xerographic imaging system onto a recording medium when at least one sensor which is operative to provide signals to the xerographic imaging system for quality control malfunctions. The image quality control apparatus includes a controller device in communication with the xerographic imaging system. The controller includes a data collection device, a determining device and an input generating device. The data collection device collects and processes sensor data received from the at least one sensor while the at least one sensor is operative. The determining device determines whether the at least one sensor malfunctions. The input generating device generates a controller input signal by using the sensor data collected by the data collection device and provides the controller input signal to the xerographic imaging system to control quality of the xerographic images when the determining device determines that the at least one sensor has malfunctioned. A method for controlling quality of a xerographic print after malfunction of a quality control sensor is also described.
摘要翻译： 当至少一个传感器可操作以向静电影像成像系统提供信号以进行质量控制故障时，图像质量控制装置将由静电复印成像系统形成的静电复印图像的质量控制在记录介质上。 图像质量控制装置包括与静电复印成像系统通信的控制器装置。 控制器包括数据采集装置，确定装置和输入产生装置。 当所述至少一个传感器可操作时，所述数据收集装置收集并处理从所述至少一个传感器接收的传感器数据。 确定装置确定至少一个传感器是否发生故障。 所述输入产生装置通过使用由所述数据收集装置收集的传感器数据来生成控制器输入信号，并且当所述确定装置确定所述至少一个传感器具有所述静电图像时，将所述控制器输入信号提供给所述静电复印图像成像系统以控制所述静电复印图像的质量 发生故障 还描述了在质量控制传感器故障之后控制静电印刷品质的方法。
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85.发明授权
公开(公告)号：US5995776A
公开(公告)日：1999-11-30
申请号：US83142
申请日：1998-05-22
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/00054 , G03G2215/0174
摘要： An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values. Each one of the control values is extracted from a respective one of the sensed values and the associated set of inherent performance characteristic values. Further, the controller device selects one of the control values which is closely comparable to the target value. A method for online establishment of print control parameters to render high quality prints using a xerographic printing process is also described.
摘要翻译： 在线打印参数建立装置与静电印刷装置一起使用，用于打印给定目标值的高质量打印。 静电印刷装置能够在感光体上产生至少一个打印控制贴片并且能够感测至少一个打印控制贴片的值。 静电印刷装置具有多组固有的性能特征值。 在线打印参数设置装置包括控制器设备和开关设备。 控制器装置可操作以产生不同感测值的第一数据库。 基于目标值，每个感测值与多组固有性能特征值中的相应一个相关联。 控制器设备还可操作以产生多个控制值的第二数据库。 控制值中的每一个都从相应的一个感测值和相关的固有性能特征值集合中提取出来。 此外，控制器设备选择与目标值非常相似的一个控制值。 还描述了用于在线建立打印控制参数以使用静电印刷处理来呈现高质量打印的方法。
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公开(公告)号：US5839022A
公开(公告)日：1998-11-17
申请号：US757032
申请日：1996-11-26
申请人： Yao Rong Wang , Lingappa K. Mestha
发明人： Yao Rong Wang , Lingappa K. Mestha
IPC分类号： G03G15/08
CPC分类号： G03G15/0849 , G03G15/0853
摘要： In an imaging machine including an imaging member, operating components including a toner dispense system including a source of toner material and a dispenser for transferring toner material from the source to a developer device to replenish the developer device with toner material, and a control to provide images on copy sheets, a smart sensor system including a sensor, a toner concentration reference, and a filter. The sensor provides signals representing the toner concentration and the filter interconnected to the sensor and to the toner concentration reference reduces error in the signals representing the toner concentration. A comparator responding to the toner concentration reference and the filter signals provides an error signal to the control system in turn providing a toner dispense signal.
摘要翻译： 在包括成像构件的成像机中，包括调色剂分配系统（包括调色剂材料源）的分配器和用于将调色剂材料从所述源转移到显影剂装置以用调色剂材料补充所述显影剂装置的分配器的操作部件，以及提供 复印纸上的图像，包括传感器的智能传感器系统，调色剂浓度参考和过滤器。 传感器提供表示调色剂浓度的信号和与传感器相互连接的过滤器，并且调色剂浓度参考减少表示调色剂浓度的信号中的误差。 响应调色剂浓度基准和滤波器信号的比较器向控制系统提供误差信号，从而提供调色剂分配信号。
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公开(公告)号：US09171196B2
公开(公告)日：2015-10-27
申请号：US13416436
申请日：2012-03-09
申请人： Yao Rong Wang , Lalit Keshav Mestha , Beilei Xu , Raja Bala , Graham Pennington
发明人： Yao Rong Wang , Lalit Keshav Mestha , Beilei Xu , Raja Bala , Graham Pennington
CPC分类号： G06K9/00255 , G06K9/00838 , G06K9/2018 , H04N5/33
摘要： What is disclosed is a system and method for selecting the optimal wavelength ban combination for a multi-band infrared camera system which is optimized for skin detection. An objective function is constructed specifically for this application from classified performance and the algorithm generates wavelengths by maximizing the objective function. A specific wavelength band combination is selected which maximizes the objective function. Also disclosed is a 3-band and 4-band camera system with filters each having a transmittance of one of a combination of wavelength bands optimized to detect skin in the infrared band. The camera systems disclosed herein find their intended uses in a wide array of vehicle occupancy detection systems and applications. Various embodiments are disclosed.
摘要翻译： 公开的是用于为针对皮肤检测而优化的多频带红外相机系统选择最佳波长禁止组合的系统和方法。 目标函数由分类性能专门为此应用构建，算法通过最大化目标函数生成波长。 选择使目标函数最大化的特定波段组合。 还公开了一种具有滤波器的三频带和四频带相机系统，每个滤波器具有被优化以检测红外频带中的皮肤的波长带的组合之一的透射率。 本文公开的相机系统在各种车辆占用检测系统和应用中找到其预期用途。 公开了各种实施例。
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88.发明授权Vehicle headlight state monitoring methods, systems and processor-readable media 有权汽车前大灯状态监控方法，系统和处理器可读介质公开(公告)号：US09129159B2
公开(公告)日：2015-09-08
申请号：US13488549
申请日：2012-06-05
IPC分类号： G06K9/00 , B60Q11/00 , B60Q1/50 , G01M17/007
CPC分类号： G06K9/00785 , B60Q1/50 , B60Q2300/41 , B60Q2300/42 , G01M17/007 , G06K9/00825
摘要： A video-based vehicle headlight state monitoring method and system. A vehicle image can be captured by an image-capturing unit and converted to a grayscale image. The grayscale image can be processed to locate a front license plate and identify a position of a headlight region in front of the vehicle utilizing an algorithm. An average digital count with respect to brightness of the headlight region can be compared with average digital count with respect to brightness of several parts of the vehicle and a background region to determine the vehicle headlights ON/OFF status. The headlights can be considered ON if the digital count level of the headlight region is higher than the digital count of the several parts of the vehicle and the background region. A warning signal can be initiated to turn the headlights on during a special situation utilizing a signal generator.
摘要翻译： 一种视频车载前灯状态监测方法及系统。 车辆图像可以由图像捕获单元捕获并转换成灰度图像。 可以处理灰度图像以定位前车牌，并使用算法识别车前面的前灯区域的位置。 相对于前灯区域的亮度的平均数字计数可以与车辆的几个部分的亮度和背景区域的平均数字计数进行比较，以确定车辆前灯的ON / OFF状态。 如果前灯区域的数字计数水平高于车辆的几个部分和背景区域的数字计数，则前灯可以被认为是ON。 可以在使用信号发生器的特殊情况下启动警告信号来打开前灯。
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89.发明授权Updating a fleet CMYK to engine cmyk LUT in a color management strategy 有权在颜色管理策略中更新CMYK到引擎cmyk LUT公开(公告)号：US08610959B2
公开(公告)日：2013-12-17
申请号：US13029753
申请日：2011-02-17
IPC分类号： H04N1/40
CPC分类号： H04N1/6016 , H04N1/40006
摘要： What is disclosed is a system and method which addresses the problem of inheriting color management intent from a fleet color management LUT into a 4-to-4 cascaded LUT. The LUT is updated starting with a set of patches that either form a uniform or non-uniform grid of the LUT or can be projected to a uniform or non-uniform grid in the CMYK space using, e.g., PCA. A set of L*a*b* target as well a variable that serve the purpose of preserving the GCR and other elements of the fleet profile is obtained by passing the set of CMYK values to the fleet printer model. By iterating on the printer (or the printer model of the engine at the moment of the engine change) and converging to the targets, the engine device cmyk set is obtained. The LUT is formed between the uniform or non-uniform gridded CMYK and the device cmyk.
摘要翻译： 公开的是一种系统和方法，其解决将车队颜色管理LUT的颜色管理意图从继承到4对4级联LUT的问题。 LUT以从LUT的统一或非均匀网格形成的一组补丁开始更新，或者使用例如PCA将其投影到CMYK空间中的均匀或非均匀网格。 通过将一组CMYK值传递给车队打印机模型，获得一组L * a * b *目标以及用于保存GCR和船队简档的其他元素的变量。 通过在打印机（或发动机更换时刻的发动机的打印机型号）上迭代并收敛到目标，获得发动机装置cmyk组。 LUT在均匀或不均匀的网格CMYK和设备cmyk之间形成。
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公开(公告)号：US08600227B2
公开(公告)日：2013-12-03
申请号：US13239642
申请日：2011-09-22
申请人： Beilei Xu , Lalit Keshav Mestha , Yao Rong Wang , Peter Paul
发明人： Beilei Xu , Lalit Keshav Mestha , Yao Rong Wang , Peter Paul
IPC分类号： G03B11/00
CPC分类号： G06K9/209 , G01J3/2823 , G01J3/36 , G02B5/201 , G02B5/208 , G03B11/00 , G06K9/00255 , G06K2009/00932
摘要： A filter array for a multi-resolution multi-spectral camera system is described which not only captures 2D images at multiple wavelength bands simultaneously but also at a spatial resolution that meets the demand for spatial feature extraction. The present system optimizes filter bands that provide high image contrast at the highest possible resolution to enable spatial feature extraction and other wavelength bands at lower resolution to achieve maximum number of wavelength bands (e.g. spectral resolution) for multi-spectral analysis. After determining the required spatial resolution and number of wavelength bands for spectral analysis, multiple filters are arranged in a geometric pattern with each filter being designed to have specified wavelength and spatial resolution. Physical sizes of filters differ within each filter group. This maximizes the detector usage while optimizing the trade-off between spatial resolution and spectral resolution. Filter gaps are fixed or tuned to wavelengths of interest.
摘要翻译： 描述了用于多分辨率多光谱照相机系统的滤光器阵列，其不仅在多个波长带同时捕获2D图像，而且以满足空间特征提取需求的空间分辨率捕获。 本系统优化以最高可能分辨率提供高图像对比度的滤波器频带，以便能够以较低分辨率进行空间特征提取和其他波长带，以实现用于多光谱分析的最大数量的波段（例如光谱分辨率）。 在确定所需的空间分辨率和用于频谱分析的波长带数之后，多个滤波器以几何图形排列，每个滤波器被设计为具有指定的波长和空间分辨率。 每个过滤器组中过滤器的物理尺寸不同。 这最大限度地提高了检测器的使用率，同时优化了空间分辨率和光谱分辨率之间的折衷。 滤波器间隙固定或调谐到感兴趣的波长。
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