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公开(公告)号：US20110013206A1
公开(公告)日：2011-01-20
申请号：US12504332
申请日：2009-07-16
申请人： Lalit Keshav Mestha , Yao Rong Wang , Alvaro Gil
发明人： Lalit Keshav Mestha , Yao Rong Wang , Alvaro Gil
IPC分类号： H04N1/60
CPC分类号： H04N1/60
摘要： A methodology is disclosed to achieve adaptive illumination independent matching of spot colors. In one embodiment, the methodology includes an iterative process to determine a variety device specific recipes for spot colors across different illumination spectra, and then automatically choosing and/or recommending the optimal recipe that provides the lowest color dispersion across a variety of illuminants under consideration. This approach may be used with a variety of gamut mapping techniques. According to a further embodiment, the methodology may be used with a ray-based gamut mapping method.
摘要翻译： 公开了一种实现专色自适应照明独立匹配的方法。 在一个实施例中，该方法包括迭代过程以确定不同照明光谱上的专色的特定配方，然后自动选择和/或推荐在所考虑的各种发光体下提供最低色散的最佳配方。 该方法可以与各种色域映射技术一起使用。 根据另一实施例，该方法可以与基于射线的色域映射方法一起使用。
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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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73.发明申请MODEL BASED DETECTION AND COMPENSATION OF GLITCHES IN COLOR MEASUREMENT SYSTEMS 有权基于模型的检测和颜色测量系统中玻璃的补偿公开(公告)号：US20080208500A1
公开(公告)日：2008-08-28
申请号：US12116269
申请日：2008-05-07
摘要： A color sensor monitors the output of a color producing process and produces a signal representative of a color produced by the color producing process. The signal can be used as feedback signal to control the process. Occasionally, the color sensor signal includes a component representing a transient error. A system model of the color producing process is used to predict reasonable sensor signals. A comparison of the sensor signal with the predicted sensor signals is used to determine if the sensor signal is reasonable. If the sensor signal is unreasonable, a substitute signal is used as the feedback signal to the control process. The substitute signal can be a predicted sensor signal or a signal based on historical system performance data.
摘要翻译： 颜色传感器监测着色产生过程的输出并产生表示由生色过程产生的颜色的信号。 该信号可用作反馈信号来控制过程。 偶尔，颜色传感器信号包括表示瞬时误差的分量。 使用颜色生成过程的系统模型来预测合理的传感器信号。 使用传感器信号与预测传感器信号的比较来确定传感器信号是否合理。 如果传感器信号不合理，则使用替代信号作为控制过程的反馈信号。 替代信号可以是预测的传感器信号或基于历史系统性能数据的信号。
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74.发明授权公开(公告)号：US07385704B2
公开(公告)日：2008-06-10
申请号：US11092635
申请日：2005-03-30
申请人： Lalit K. Mestha , Joel A. Kubby , Yao Rong Wang
发明人： Lalit K. Mestha , Joel A. Kubby , Yao Rong Wang
CPC分类号： G01J3/2823 , G01J3/26 , G01N21/255 , G01N21/31 , G02B26/001
摘要： A low cost spectral camera may include a multiple Fabry-Perot cavity filter with silicon photodetectors distributed one beside another in a two-dimensional matrix fashion. Each cavity may be designed to capture a pixel from an image. The two-dimensional fabry-perot array may function as a sensor to capture an image in spectral form. Spectral information may be obtained to generate spectral displays.
摘要翻译： 低成本光谱相机可以包括具有硅光电探测器的多个法布里 - 珀罗腔滤波器，其以二维矩阵方式彼此分布。 每个空腔可被设计成从图像中捕获像素。 二维fabry-perot阵列可以用作传感器以以光谱形式捕获图像。 可以获得光谱信息以产生光谱显示。
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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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77.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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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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80.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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