公开(公告)号：US20120262583A1

公开(公告)日：2012-10-18

申请号：US13089058

申请日：2011-04-18

申请人： Edgar A. Bernal ,  Robert P. Loce ,  Graham Pennington ,  Wencheng Wu

发明人： Edgar A. Bernal ,  Robert P. Loce ,  Graham Pennington ,  Wencheng Wu

IPC分类号： H04N5/33

CPC分类号： G08B13/196 ,  G08B17/12 ,  H04N5/33

摘要： An automated method and system for detecting the presence of a smoking product utilizing a near infrared video-processing unit in real time. One or more near infrared (NIR) video capturing units can be configured to capture a video feed. The video feed can be processed by the video-processing unit in order to detect a smoking product (e.g., a lit cigarette) within a field of view of the video capturing unit. A near infrared video sequence can be read and analyzed for the presence of a “hot spot” of a predetermined size based on pixel color information. In some cases, the motion of the hot spot can be tracked in response to the detection of the hot spot. An alarm signal can also be triggered in some cases, if the pattern of motion is consistent with that of a cigarette being smoked.

摘要翻译： 一种用于利用近红外视频处理单元实时检测吸烟产品的存在的自动化方法和系统。 可以配置一个或多个近红外（NIR）视频捕获单元来捕获视频馈送。 可以由视频处理单元处理视频馈送，以便在视频捕获单元的视野内检测吸烟产品（例如，点燃的香烟）。 基于像素颜色信息，可以读取和分析近红外视频序列以存在预定大小的热点。 在某些情况下，可以根据热点的检测来跟踪热点的运动。 在某些情况下，如果运动模式与吸烟香烟的运动方式一致，也可以触发报警信号。

公开(公告)号：US08280161B2

公开(公告)日：2012-10-02

申请号：US12358806

申请日：2009-01-23

申请人： Edul N. Dalal ,  Wencheng Wu

发明人： Edul N. Dalal ,  Wencheng Wu

IPC分类号： G06K9/00

CPC分类号： H04N1/6033 ,  H04N1/62

摘要： Spot color tables, or spot color emulation colorant recipes are updated using information generated during a first and second process color related system calibration. Rather than separately calibrate, through trial and error, individual spot color emulation colorant recipes, information from the first and second general system calibrations is used to adjust spot color recipes. In one embodiment, processing an existing or initial spot color recipe through both a first system model and a second system model generates a device independent color difference. A colorant difference is then determined by transforming a predicted color difference according to estimated partial derivatives of aspects of the second system model, wherein the partial derivatives relate changes in colorant amounts to changes in parameter values of a machine independent color space.

摘要翻译： 使用在第一和第二过程颜色相关系统校准期间生成的信息来更新专色表或专色仿真着色剂配方。 通过试验和错误单独校准各个专色仿真着色剂配方，而使用第一次和第二次通用系统校准的信息来调整专色配方。 在一个实施例中，通过第一系统模型和第二系统模型来处理现有或初始的专色配方产生独立于设备的色差。 然后通过根据第二系统模型的方面的估计偏导数变换预测色差来确定着色剂差异，其中部分导数将着色剂量的变化与机器独立色彩空间的参数值的变化相关联。

公开(公告)号：US20120182571A1

公开(公告)日：2012-07-19

申请号：US13008557

申请日：2011-01-18

申请人： Wencheng Wu ,  Beilei Xu

发明人： Wencheng Wu ,  Beilei Xu

IPC分类号： G06K15/02

CPC分类号： H04N1/00005 ,  G06K15/027 ,  H04N1/00015 ,  H04N1/00029 ,  H04N1/00076

摘要： A method has been developed for detecting defects in printed images. The method includes operating a printer to print a first printed image and a second image, where the second image is a duplicate of the first printed image. The method further includes generating image data that correspond to the first printed image and the second printed image, and identifying image defects using differences between the image data generated for the first image and the image data generated for the second image.

摘要翻译： 已经开发了用于检测印刷图像中的缺陷的方法。 该方法包括操作打印机以打印第一印刷图像和第二图像，其中第二图像是第一印刷图像的副本。 该方法还包括生成对应于第一打印图像和第二打印图像的图像数据，以及使用为第一图像生成的图像数据和为第二图像生成的图像数据之间的差异来识别图像缺陷。

公开(公告)号：US20120014566A1

公开(公告)日：2012-01-19

申请号：US12838942

申请日：2010-07-19

申请人： Beilei Xu ,  Wencheng Wu ,  Peter Paul ,  Palghat Ramesh

发明人： Beilei Xu ,  Wencheng Wu ,  Peter Paul ,  Palghat Ramesh

IPC分类号： G06K9/00

CPC分类号： H04N1/00002 ,  G06K9/036 ,  H04N1/00018 ,  H04N1/00047 ,  H04N1/00084

摘要： A method for detecting motion quality error of printed documents having text in a printing system includes: printing a document having text lines, each text line comprising a plurality of characters; scanning the printed document to generate a scanned image; detecting positions in a process direction of the printing system of one of text lines and characters in the scanned image; determining position errors in the process direction in the printed document based on the detected positions in the scanned image; determining at least one motion quality defect of the printing system in the process direction based on the determined position errors; and initiating an activity associated with said printing system in response to a motion quality error having been determined. A system for detecting motion quality error of printed documents is also disclosed.

摘要翻译： 一种用于检测在打印系统中具有文本的打印文档的运动质量错误的方法，包括：打印具有文本行的文档，每个文本行包括多个字符; 扫描打印文档以生成扫描图像; 检测所述扫描图像中的文本行和文字之一的所述打印系统的处理方向的位置; 基于扫描图像中检测到的位置确定打印文档中的处理方向上的位置误差; 基于所确定的位置误差，确定所述打印系统在所述处理方向上的至少一个运动质量缺陷; 以及响应于已经确定的运动质量错误，发起与所述打印系统相关联的活动。 还公开了一种用于检测打印文件的运动质量误差的系统。

公开(公告)号：US08077358B2

公开(公告)日：2011-12-13

申请号：US12109203

申请日：2008-04-24

申请人： Martin Edward Banton ,  Wencheng Wu

发明人： Martin Edward Banton ,  Wencheng Wu

IPC分类号： H04N1/40 ,  G06K15/00 ,  G06K1/00

CPC分类号： H04N1/00002 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00037 ,  H04N1/00039 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00055 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00082 ,  H04N1/00567 ,  H04N1/00588 ,  H04N1/00591 ,  H04N1/00602 ,  H04N1/00612 ,  H04N1/0062 ,  H04N1/00631 ,  H04N1/00641

摘要： This invention generally relates to systems and methods for implementing use of customer documents in maintaining Image Quality (IQ)/Image Quality Consistency (IQC) of printing devices. The system may include an image analyzer configured to analyze input image data for a document and to identify one or more relevant pages of the document that may provide information regarding the state of the printing system; a scheduler that selects the relevant pages for printing out-of-order; a marking engine constructed to print images; a scanning device for scanning print images of the one or more relevant pages; and a buffer for holding the print images of the one or more relevant pages and inserting the print images of the one or more relevant pages into the media path in proper order. A method for analyzing printed documents is also provided.

摘要翻译： 本发明一般涉及用于在维护打印设备的图像质量（IQ）/图像质量一致性（IQC））中实现客户文档的使用的系统和方法。 该系统可以包括图像分析器，该图像分析器被配置为分析用于文档的输入图像数据，并且识别可以提供关于打印系统的状态的信息的文档的一个或多个相关页面; 一个调度器，用于选择相关页面进行无序打印; 构造成打印图像的标记引擎; 用于扫描所述一个或多个相关页面的打印图像的扫描装置; 以及用于保持一个或多个相关页面的打印图像并且以适当顺序将一个或多个相关页面的打印图像插入到介质路径中的缓冲器。 还提供了分析打印文档的方法。

公开(公告)号：US20110228988A1

公开(公告)日：2011-09-22

申请号：US12727724

申请日：2010-03-19

申请人： Wencheng Wu ,  Edul N. Dalal

发明人： Wencheng Wu ,  Edul N. Dalal

IPC分类号： G06K9/46 ,  G06T7/00

CPC分类号： G06T7/0006 ,  G06T2207/10024 ,  G06T2207/30144

摘要： What is disclosed is a novel system and method for determining printer performance in terms of image quality (IQ) on-paper using on-belt measurements. First, image noise is measured via sensing of single-separation device-dependent colors on an imaging member for a target marking device. Such single-separation device-dependent colors, in one embodiment, comprise cyan, magenta, yellow and black. A predictive correlation model is used to project the image noise of the single-separation device-dependent colors when printed on a substrate. A noise prediction model is used to estimate image noise performance values of multi-separation device-dependent colors on a substrate from the projected single-separation device-dependent colors on a substrate. In one embodiment, the predictive correlation model comprises a separation-dependent polynomial equation. The estimated image noise performance values on a substrate are used to determine image quality metric of the target marking device.

摘要翻译： 所公开的是使用带上测量在纸上使用图像质量（IQ）来确定打印机性能的新型系统和方法。 首先，通过感测目标标记装置的成像构件上的单分离装置相关颜色来测量图像噪声。 在一个实施例中，这种单分离装置相关的颜色包括青色，品红色，黄色和黑色。 使用预测相关模型来投影印刷在基板上的单分离装置相关颜色的图像噪声。 噪声预测模型用于从基底上投影的单分离装置依赖颜色估计基板上多分离装置相关颜色的图像噪声性能值。 在一个实施例中，预测相关模型包括分离依赖多项式方程。 使用基板上的估计图像噪声性能值来确定目标标记装置的图像质量度量。

公开(公告)号：US07660460B2

公开(公告)日：2010-02-09

申请号：US11274638

申请日：2005-11-15

申请人： Wencheng Wu ,  Edul N. Dalal ,  Zhigang Fan

发明人： Wencheng Wu ,  Edul N. Dalal ,  Zhigang Fan

IPC分类号： G06K9/00 ,  G06K9/34

CPC分类号： H04N1/603 ,  G06K9/00449

摘要： In preparation for rendering respective portions of a document via a respective plurality of engines, objects within the document are identified and characterized. A determination is made as to whether gamut variations between the engines might result in objectionable variations in the appearance of rendered versions of identified objects having similar characteristics. For those objects within the document for which the determination is made that variations might be objectionable, a target gamut is selected to be an intersection gamut of the engines to be used to render the document. For those objects within the document for which the determination is made that variations would be unobjectionable, the target gamut is selected to be that of selected individual engines. A system for selecting target gamuts for objects within a document can include an object identifier, a characteristic identifier and a gamut selector.

摘要翻译： 在准备通过相应的多个引擎呈现文档的各个部分时，识别和表征文档内的对象。 确定发动机之间的色域变化是否可能导致具有相似特征的识别对象的渲染版本的外观的令人反感的变化。 对于确定变化可能令人反感的文档中的那些对象，目标色域被选择为用于呈现文档的引擎的交叉色域。 对于确定变化是无反应的文档中的那些对象，目标色域被选择为所选择的各个引擎的目标色域。 用于为文档中的对象选择目标色域的系统可以包括对象标识符，特征标识符和色域选择器。

公开(公告)号：US07652791B2

公开(公告)日：2010-01-26

申请号：US11488355

申请日：2006-07-18

申请人： Ann L. McCarthy ,  Edul N. Dalal ,  Wencheng Wu ,  Dale R. Mashtare ,  Raja Bala

发明人： Ann L. McCarthy ,  Edul N. Dalal ,  Wencheng Wu ,  Dale R. Mashtare ,  Raja Bala

IPC分类号： G06F3/12

CPC分类号： H04N1/6055 ,  G06F3/1204 ,  G06F3/1208 ,  G06F3/1234 ,  G06F3/1273 ,  H04N1/40006 ,  H04N1/6011

摘要： Consistency of document reprints is improved by recording characteristics of a reference printing system used to produce a reference printing of a document, determining related characteristics of a reprint printing system, retrieving the recorded characteristics and compensating for differences between the reference system and the reprint system in the reprint system prior to using the reprint system to produce reprints of the document. Analytical test prints (TPs) are produced with the respective printing systems in close temporal association to the production of the respective reference prints and reprints. TPs can be customized according to aspects of the document. TP customization allows the compensation to address aspects of the printing systems that have a bearing on perceived consistency in the reprints. TPs can be customized with regard to colors in test patches or both the colors and locations of test patches on a page. Compensation is based on measurements of the TPs.

摘要翻译： 通过记录用于生成文档的参考打印的参考打印系统的特性来改进文档重印的一致性，确定重印打印系统的相关特征，检索记录的特性并补偿参考系和重印系统之间的差异 在重印系统使用转印系统之前，重印系统可以重印本文档。 分析测试印刷品（TP）与相应的印刷系统一起生产，与相应的参考印刷品的印刷和重印相关。 TP可以根据文档的方面进行定制。 TP定制允许补偿来处理与重印中感知到的一致性有关的打印系统的方面。 TP可以针对测试补丁中的颜色或页面上测试补丁的颜色和位置进行定制。 补偿是基于TP的测量。

公开(公告)号：US20090268261A1

公开(公告)日：2009-10-29

申请号：US12109203

申请日：2008-04-24

申请人： Martin Edward BANTON ,  Wencheng Wu

发明人： Martin Edward BANTON ,  Wencheng Wu

IPC分类号： H04N1/04

CPC分类号： H04N1/00002 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00037 ,  H04N1/00039 ,  H04N1/00047 ,  H04N1/0005 ,  H04N1/00055 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00082 ,  H04N1/00567 ,  H04N1/00588 ,  H04N1/00591 ,  H04N1/00602 ,  H04N1/00612 ,  H04N1/0062 ,  H04N1/00631 ,  H04N1/00641

摘要： This invention generally relates to systems and methods for implementing use of customer documents in maintaining Image Quality (IQ)/Image Quality Consistency (IQC) of printing devices. The system may include an image analyzer configured to analyze input image data for a document and to identify one or more relevant pages of the document that may provide information regarding the state of the printing system; a scheduler that selects the relevant pages for printing out-of-order; a marking engine constructed to print images; a scanning device for scanning print images of the one or more relevant pages; and a buffer for holding the print images of the one or more relevant pages and inserting the print images of the one or more relevant pages into the media path in proper order. A method for analyzing printed documents is also provided.

摘要翻译： 本发明一般涉及在维护打印设备的图像质量（IQ）/图像质量一致性（IQC））中实现客户文档的使用的系统和方法。 该系统可以包括图像分析器，该图像分析器被配置为分析用于文档的输入图像数据，并且识别可提供关于打印系统的状态的信息的文档的一个或多个相关页面; 一个调度器，用于选择相关页面进行无序打印; 构造成打印图像的标记引擎; 用于扫描所述一个或多个相关页面的打印图像的扫描装置; 以及用于保持一个或多个相关页面的打印图像并且以适当顺序将一个或多个相关页面的打印图像插入到介质路径中的缓冲器。 还提供了分析打印文档的方法。

公开(公告)号：US20080013848A1

公开(公告)日：2008-01-17

申请号：US11487206

申请日：2006-07-14

申请人： Wencheng Wu ,  R. Victor Klassen

发明人： Wencheng Wu ,  R. Victor Klassen

IPC分类号： G06K9/00 ,  G06K9/40

CPC分类号： H04N1/00002 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00087

摘要： A method of detecting image quality defects includes providing an electronic image including electronic image data, rendering an image based on the electronic image data, capturing the rendered image, the captured image including captured image data, deriving one-dimensional profiles from the captured image data, each of the captured one-dimensional profiles being derived from a set of image data in the same direction, optionally, deriving reference one-dimensional profiles from the electronic image data and generating a difference profile from the reference and captured one-dimensional profiles, and evaluating at least one of the captured one-dimensional profiles and reference one-dimensional profiles for image quality defects.

摘要翻译： 一种检测图像质量缺陷的方法包括提供包括电子图像数据的电子图像，基于电子图像数据绘制图像，捕获渲染图像，捕获的图像，包括捕获的图像数据，从捕获的图像数据中导出一维轮廓 捕获的一维轮廓中的每一个被从相同方向上的一组图像数据导出，可选地从电子图像数据导出参考一维轮廓并从参考和捕获的一维轮廓生成差异轮廓， 以及评估所捕获的一维轮廓和参考用于图像质量缺陷的一维轮廓中的至少一个。