公开(公告)号：US08509495B2

公开(公告)日：2013-08-13

申请号：US13087850

申请日：2011-04-15

申请人： Beilei Xu ,  Lalit Keshav Mestha

发明人： Beilei Xu ,  Lalit Keshav Mestha

IPC分类号： G06K9/00

CPC分类号： G06K9/00013 ,  G06K9/2036 ,  G06K2009/00932

摘要： What is disclosed is a novel system and method for identifying an individual in an IR image involves the following. Intensity values are collected at N wavelengths for each pixel in an IR video-based image. The intensity values are collected using an IR imaging system having an IR detector and an IR Illuminator. The intensity values are then used to identify pixels of human skin in the IR image. If human skin is identified in the IR image then, the human hand is identified in the IR image from the human skin to distinguish the hand from the background. Vein patterns in the hand are then located and extracted. A reference vein pattern is retrieved from a database of known vein patterns for individuals, and a comparison is made to determine a match. If a match is determined, then the individual in the captured IR image can be identified.

摘要翻译： 所公开的是用于识别IR图像中的个体的新颖系统和方法涉及以下。 在基于IR视频的图像中针对每个像素在N个波长处收集强度值。 使用具有IR检测器和IR照明器的IR成像系统收集强度值。 然后强度值用于识别IR图像中人体皮肤的像素。 如果在IR图像中识别出人类皮肤，则人类的手在来自人体皮肤的IR图像中被识别，以将手与背景区分开。 然后定位和提取手中的静脉图案。 从个人的已知静脉图案的数据库检索参考静脉图案，并进行比较以确定匹配。 如果确定匹配，则可以识别捕获的IR图像中的个体。

公开(公告)号：US08811664B2

公开(公告)日：2014-08-19

申请号：US13312414

申请日：2011-12-06

申请人： Edul N. Dalal ,  Peter Paul ,  Lalit Keshav Mestha ,  Abu Saeed Islam

发明人： Edul N. Dalal ,  Peter Paul ,  Lalit Keshav Mestha ,  Abu Saeed Islam

IPC分类号： G06K9/00 ,  G06K9/46

CPC分类号： G06K9/00362 ,  G06K9/2018 ,  H04N5/33

摘要： What is disclosed is a method for vehicle occupancy detection using a single band infrared imaging system. First, an infrared image of a vehicle intended to be processed for human occupancy detection is captured using a single band infrared camera set to a predefined wavelength band. A candidate sub-image is identified within the captured image. A cumulative histogram is formed using the reflectance values of each pixel in the candidate region. A threshold reflectance value is then determined from the cumulative histogram using a pre-defined cumulative occurrence fraction value which corresponds to a value equivalent to an average sized human face. Embodiments for setting the threshold reflectance value are disclosed. Thereafter, human occupants can be distinguished in the image from the vehicle's interior by comparing pixel reflectances in the sub-image against the threshold reflectance value.

摘要翻译： 所公开的是使用单频带红外成像系统的车辆占用检测方法。 首先，使用设定为预定波长带的单频带红外线摄像机来捕捉旨在进行人身携带检测的车辆的红外图像。 在拍摄图像内识别候选子图像。 使用候选区域中的每个像素的反射率值形成累积直方图。 然后使用对应于等于平均大小的人脸的值的预定义累积出现分数值，从累积直方图确定阈值反射率值。 公开了设定阈值反射率值的实施例。 此后，通过将子图像中的像素反射率与阈值反射率值进行比较，可以将图像与车辆内部区分开。

公开(公告)号：US08514470B2

公开(公告)日：2013-08-20

申请号：US12963279

申请日：2010-12-08

申请人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

发明人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

IPC分类号： H04N1/46 ,  H04N1/60 ,  G06K9/00

CPC分类号： H04N1/6041 ,  H04N1/6044 ,  H04N1/6047

摘要： What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.

摘要翻译： 公开的是基于使用在线分光光度计（ILS）或类似装置在印刷纸上进行的测量的静电Dmax控制的新颖系统和方法。 所公开的方法基于直接测量致动器灵敏度的颜色。 使用专用于该分色的致动器来独立地控制每个分离。 本方法在控制固体原色的颜色方面是有效的。 变化矢量与现场观察到的纯色变化高度相关的事实表明，这里的教导有效地提高了纯色稳定性。 增加的纯色稳定性增加了整个打印机色域的色彩稳定性和色域边界的稳定性，这增加了色域映射算法的鲁棒性。 有利地，本方法可以与现有的基于ILS的维护架构相结合。

公开(公告)号：US20120147390A1

公开(公告)日：2012-06-14

申请号：US12963279

申请日：2010-12-08

申请人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

发明人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

IPC分类号： H04N1/60

CPC分类号： H04N1/6041 ,  H04N1/6044 ,  H04N1/6047

摘要： What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.

摘要翻译： 公开的是基于使用在线分光光度计（ILS）或类似装置在印刷纸上进行的测量的静电Dmax控制的新颖系统和方法。 所公开的方法基于直接测量致动器灵敏度的颜色。 使用专用于该分色的致动器来独立地控制每个分离。 本方法在控制固体原色的颜色方面是有效的。 变化矢量与现场观察到的纯色变化高度相关的事实表明，这里的教导有效地提高了纯色稳定性。 增加的纯色稳定性增加了整个打印机色域的色彩稳定性和色域边界的稳定性，这增加了色域映射算法的鲁棒性。 有利地，本方法可以与现有的基于ILS的维护架构相结合。

公开(公告)号：US20120019842A1

公开(公告)日：2012-01-26

申请号：US12839620

申请日：2010-07-20

申请人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

发明人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

IPC分类号： H04N1/60

CPC分类号： H04N1/6033 ,  H04N1/6036

摘要： What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.

公开(公告)号：US08351081B2

公开(公告)日：2013-01-08

申请号：US12839620

申请日：2010-07-20

申请人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

发明人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

IPC分类号： G06F15/00

CPC分类号： H04N1/6033 ,  H04N1/6036

摘要： What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.

公开(公告)号：US08922829B2

公开(公告)日：2014-12-30

申请号：US13253660

申请日：2011-10-05

申请人： Lina Fu ,  Alvaro Enrique Gil ,  Lalit Keshav Mestha

发明人： Lina Fu ,  Alvaro Enrique Gil ,  Lalit Keshav Mestha

IPC分类号： G06F15/00 ,  G03F3/08 ,  H04N1/60 ,  H04N1/54

CPC分类号： H04N1/60 ,  H04N1/54

摘要： What is disclosed is a method for determining a color solution which achieves color objectives for a color marking device involves performing the following. In one embodiment, N objectives of interest are identified for a color marking device and a N-dimensional Pareto Front is constructed which comprises a collection of color solutions which accommodates those objectives. The Pareto Front is constructed using an optimization process based upon printer models of the objectives. Color solutions can be at least one color recipe, or a combination of color recipes and process actuators. A target point is selected in an N-dimensional objective space based upon at least one user-selected preference. The target point is then mapped to a point on the Pareto Front. The mapping identifies one of the color solutions which, in turn, is used to generate a spot color for the device. The generated spot color achieves the user-selected preference.

摘要翻译： 所公开的是确定实现彩色标记装置的色彩目标的色彩解决方案的方法，包括执行以下操作。 在一个实施例中，为彩色标记装置识别出感兴趣的N个目标，并且构造了包括适应这些目标的颜色解决方案集合的N维帕累托前端。 帕累托前面采用基于目标打印机模型的优化过程构建。 颜色解决方案可以是至少一种颜色配方，或颜色配方和过程执行器的组合。 基于至少一个用户选择的偏好在N维目标空间中选择目标点。 目标点然后映射到帕累托阵线上的一个点。 该映射标识了颜色解决方案之一，而这些颜色解决方案又被用于生成设备的专色。 生成的专色实现了用户选择的偏好。

公开(公告)号：US08773446B2

公开(公告)日：2014-07-08

申请号：US13023798

申请日：2011-02-09

申请人： Shanmuga-Nathan Gnanasambandam ,  Lalit Keshav Mestha

发明人： Shanmuga-Nathan Gnanasambandam ,  Lalit Keshav Mestha

IPC分类号： G06F15/80

CPC分类号： G06T1/20

摘要： What is disclosed is a novel system and method for parallel processing of intra-image data in a distributed computing environment. A generic architecture and method are presented which collectively facilitate image segmentation and block sorting and merging operations with a certain level of synchronization in a parallel image processing environment which has been traditionally difficult to parallelize. The present system and method enables pixel-level processing at higher speeds thus making it a viable service for a print/copy job document reproduction environment. The teachings hereof have been simulated on a cloud-based computing environment with a demonstrable increase of ≈2× with nominal 8-way parallelism, and an increase of ≈20×-100× on a graphics processor. In addition to production and office scenarios where intra-image processing are likely to be performed, these teachings are applicable to other domains where high-speed video and audio processing are desirable.

摘要翻译： 公开的是用于在分布式计算环境中并行处理图像内数据的新型系统和方法。 提出了一种通常的架构和方法，其在传统上难以并行化的并行图像处理环境中共同促进图像分割和块排序和合并操作与一定水平的同步。 本系统和方法能够以更高的速度进行像素级处理，从而使其成为打印/复印作业文档再现环境的可行服务。 本文的教导已经在基于云计算环境下进行了模拟，具有标称8路并行性的≈2×的可见增加，并且在图形处理器上增加了≈20×-100×。 除了可能执行图像内处理的生产和办公场景之外，这些教导也适用于需要高速视频和音频处理的其他领域。

公开(公告)号：US08335017B1

公开(公告)日：2012-12-18

申请号：US13167349

申请日：2011-06-23

申请人： Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  Wencheng Wu ,  Edul N. Dalal

发明人： Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  Wencheng Wu ,  Edul N. Dalal

IPC分类号： H04N1/46

CPC分类号： H04N1/622

摘要： What is disclosed is a feedback control based system and method for selecting spot color recipes for improved spot color rendition while simultaneously minimizing a function of image quality attributes formed with states defined as vectors such as L*, a*, b*, mottle, graininess, etc. Color is measured with an in-line spectrophotometer or with a full/partial width array. If the sensor is not available, then a model of the print device is used to optimize the function of image quality attributes. In one example embodiment, a spot color of interest is selected along with a set of image quality attributes to be improved for the spot colors of interest. Set points for process actuators and color recipes of the color marking device are adjusted such that a function of the image quality attributes is minimized when the spot color is rendered on the device. Various workflows are disclosed.

摘要翻译： 所公开的是基于反馈控制的系统和方法，用于选择改进的专色再现的专色配方，同时最小化由定义为诸如L *，a *，b *，斑点，颗粒度的矢量形成的图像质量属性的功能 等等。使用直列分光光度计或全/部分宽度阵列测量颜色。 如果传感器不可用，则使用打印设备的型号来优化图像质量属性的功能。 在一个示例性实施例中，选择感兴趣的专色连同一组图像质量属性以便针对感兴趣的专色进行改进。 调整颜色标记装置的处理执行器和颜色配置的设定点，使得当在设备上呈现专色时，图像质量属性的功能被最小化。 公开了各种工作流程。

公开(公告)号：US08314979B2

公开(公告)日：2012-11-20

申请号：US12274980

申请日：2008-11-20

申请人： Lalit Keshav Mestha ,  Matthew F. Hoffmann

发明人： Lalit Keshav Mestha ,  Matthew F. Hoffmann

IPC分类号： G03F3/08 ,  H04N1/60 ,  G06K9/00

CPC分类号： H04N1/603

摘要： Disclosed are color management methods and systems to adaptively tune colors for one or more image marking devices. Specifically, exemplary embodiments include methods and systems to create profiles for preference color matching. For example, Lab values associated with target node colors can be warped using a predefined function for special regions of interest.

摘要翻译： 公开了用于自适应地调整一个或多个图像标记装置的颜色的颜色管理方法和系统。 具体地，示例性实施例包括用于创建偏好颜色匹配的简档的方法和系统。 例如，与目标节点颜色相关联的实验室值可以使用特定感兴趣区域的预定义函数进行扭曲。