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1. 发明授权

US09025024B2 System and method for object identification and tracking 有权
标题翻译：用于物体识别和跟踪的系统和方法
公开(公告)号：US09025024B2
公开(公告)日：2015-05-05
申请号：US13247343
申请日：2011-09-28
申请人： Beilei Xu , Wencheng Wu , Lalit Keshav Mestha , Graham Pennington
发明人： Beilei Xu , Wencheng Wu , Lalit Keshav Mestha , Graham Pennington
IPC分类号： H04N7/18 , G06K9/20 , H04N5/232 , H04N5/33
CPC分类号： G06K9/2018 , H04N5/23206 , H04N5/23219 , H04N5/332
摘要： What is disclosed is a system and method for identifying materials comprising an object captured in a video and for using the identified materials to track that object as it moves across the captured video scene. In one embodiment, a multi-spectral or hyper-spectral sensor is used to capture a spectral image of an object in an area of interest. Pixels in the spectral planes of the spectral images are analyzed to identify a material comprising objects in that area of interest. A location of each of the identified objects is provided to an imaging sensor which then proceeds to track the objects as they move through a scene. Various embodiments are disclosed.
摘要翻译：公开的是用于识别包括在视频中捕获的对象的材料的系统和方法，并且用于当所述对象在所捕获的视频场景中移动时使用所识别的材料来跟踪该对象。在一个实施例中，使用多光谱或超光谱传感器来捕获感兴趣区域中的对象的光谱图像。分析光谱图像的光谱平面中的像素以识别包含该感兴趣区域中的物体的材料。每个识别的对象的位置被提供给成像传感器，然后成像传感器在它们移动通过场景时跟踪对象。公开了各种实施例。

2. 发明授权

US08646862B2 System and method for detection and compensation of inoperable inkjets in an inkjet printing apparatus 有权
标题翻译：用于喷墨打印设备中的不可操作的喷墨枪的检测和补偿的系统和方法
公开(公告)号：US08646862B2
公开(公告)日：2014-02-11
申请号：US13407437
申请日：2012-02-28
申请人： Wencheng Wu , Beilei Xu , David A. Mantell
发明人： Wencheng Wu , Beilei Xu , David A. Mantell
IPC分类号： B41J29/38 , B41J29/393 , B41J2/045
CPC分类号： B41J2/04543 , B41J2/0451 , B41J2/04545 , B41J2/04586 , B41J2/2139
摘要： In an inkjet printer, a method for of compensating for defects in printed images identifies a cross-process direction location of a defect in a printed image and a candidate inkjet corresponding to the location of the defect. The method modifies the operation of the candidate inkjet to form a second ink image. The method identifies a second inkjet that actually formed the first image defect in response to identifying a second defect in the second ink image located proximate to the first defect. The method enables identification and compensation of inoperable inkjets when image data do not correspond perfectly to inkjets in the printer.
摘要翻译：在喷墨打印机中，用于补偿打印图像中的缺陷的方法识别打印图像中的缺陷的交叉处理方向位置和对应于缺陷位置的候选喷墨。该方法修改候选喷墨的操作以形成第二墨图像。该方法识别实际形成第一图像缺陷的第二喷墨，以响应于识别位于第一缺陷附近的第二墨图像中的第二缺陷。当图像数据与打印机中的喷墨打印机完全不一致时，该方法可以识别和补偿不可操作的喷墨打印机。

3. 发明授权

US08605303B2 Content-aware image quality defect detection in printed documents 有权
标题翻译：印刷文件中的内容感知图像质量缺陷检测
公开(公告)号：US08605303B2
公开(公告)日：2013-12-10
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： G06K15/00
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。

4. 发明授权

US08605268B2 Multi-channel sensor for measuring colorants of prints 有权
标题翻译：用于测量打印件着色剂的多通道传感器
公开(公告)号：US08605268B2
公开(公告)日：2013-12-10
申请号：US13039013
申请日：2011-03-02
申请人： Wencheng Wu , Edul N. Dalal , Beilei Xu
发明人： Wencheng Wu , Edul N. Dalal , Beilei Xu
IPC分类号： G01N21/00
CPC分类号： G03G15/0189 , G03G15/5062 , G03G2215/00063 , G03G2215/00067
摘要： A sensor used for determining area coverages of each colorant in a printed image is provided. The sensor includes a plurality of sensing elements for determining area coverages of each colorant in a printed image that includes a plurality of colorants including a black colorant. One of the sensing elements is an infrared sensing element configured to measure infrared reflection, and the others of the sensing elements are each configured to detect a visible color.
摘要翻译：提供了用于确定印刷图像中每种着色剂的面积覆盖率的传感器。传感器包括多个感测元件，用于确定印刷图像中每种着色剂的面积覆盖率，其包括多个包括黑色着色剂的着色剂。感测元件中的一个是被配置为测量红外反射的红外感测元件，并且其它感测元件被配置为检测可见颜色。

5. 发明申请

US20070052991A1 Methods and systems for determining banding compensation parameters in printing systems 失效
标题翻译：确定打印系统中条带补偿参数的方法和系统
公开(公告)号：US20070052991A1
公开(公告)日：2007-03-08
申请号：US11222260
申请日：2005-09-08
申请人： Nancy Goodman , Robert Loce , William Nowak , Howard Mizes , Peter Paul , Beilei Xu , Wencheng Wu , Jack Lestrange
发明人： Nancy Goodman , Robert Loce , William Nowak , Howard Mizes , Peter Paul , Beilei Xu , Wencheng Wu , Jack Lestrange
IPC分类号： G06K15/00
CPC分类号： B41J29/393 , G03G15/5062 , G03G2215/00067
摘要： A test target is written in a non image zone at set time intervals. The test target is sensed. At least one of frequency, amplitude and phase of banding, which is inherent in a printing device, is determined based on the sensed test target. At least one banding compensation parameter based at least on one of the determined frequency, amplitude and phase of banding is determined. Characteristics of producing an image based on the determined banding compensation parameter are adjusted to compensate the banding inherent in the printing device.
摘要翻译：测试目标以设定的时间间隔写入非图像区域。感测测试目标。基于感测的测试目标来确定打印设备中固有的条带的频率，幅度和相位中的至少一个。确定至少一个带状补偿参数，至少基于所确定的条带的频率，振幅和相位之一。调整基于确定的条带补偿参数产生图像的特性，以补偿打印装置固有的条带。

6. 发明授权

US08451504B2 Banding defect detection in digital imaging systems 有权
标题翻译：数字成像系统中的带状缺陷检测
公开(公告)号：US08451504B2
公开(公告)日：2013-05-28
申请号：US12552519
申请日：2009-09-02
申请人： Beilei Xu , Wencheng Wu
发明人： Beilei Xu , Wencheng Wu
IPC分类号： H04N1/40
CPC分类号： G06K9/036
摘要： What is disclosed is a novel system and method for banding defect detection and analysis in digital imaging systems. The present method utilizes the gray levels of image regions and a collection of sequence of user images to improve the banding analysis. One embodiment hereof includes: segmenting images into regions; determining banding information for each page over a given sequence of images and detecting problem banding defect frequencies; estimating the banding amplitude(s) and average gray levels for each segmented region for each identified banding frequency(ies); and determining, through a process of interpolation, the banding amplitude for the image or sequence of images based on the banding amplitude and average gray levels of each region. Thereafter, notification can be provided to a key operator when the amplitude(s) are expected to exceed pre-determined levels over the course of a production run. The method demonstrates advantages in banding detection over whole-page methods.
摘要翻译：公开的是用于在数字成像系统中条带缺陷检测和分析的新型系统和方法。本方法利用图像区域的灰度级和用户图像序列的集合来改进条带分析。其一个实施例包括：将图像分割成区域; 在给定的图像序列上确定每个页面的条带信息并检测问题带状缺陷频率; 为每个识别的条带频率估计每个分段区域的条带幅度和平均灰度级; 以及基于每个区域的条带幅度和平均灰度级，通过插值过程确定图像或图像序列的条带幅度。此后，当在生产运行过程中预期振幅超过预定水平时，可向密钥操作者提供通知。该方法显示了整页检索方法的优势。

7. 发明申请

US20110052010A1 BANDING DEFECT DETECTION IN DIGITAL IMAGING SYSTEMS 有权
标题翻译：数字成像系统中的带状缺陷检测
公开(公告)号：US20110052010A1
公开(公告)日：2011-03-03
申请号：US12552519
申请日：2009-09-02
申请人： BEILEI XU , Wencheng Wu
发明人： BEILEI XU , Wencheng Wu
IPC分类号： G06K9/00
CPC分类号： G06K9/036
摘要： What is disclosed is a novel system and method for banding defect detection and analysis in digital imaging systems. The present method utilizes the gray levels of image regions and a collection of sequence of user images to improve the banding analysis. One embodiment hereof includes: segmenting images into regions; determining banding information for each page over a given sequence of images and detecting problem banding defect frequencies; estimating the banding amplitude(s) and average gray levels for each segmented region for each identified banding frequency(ies); and determining, through a process of interpolation, the banding amplitude for the image or sequence of images based on the banding amplitude and average gray levels of each region. Thereafter, notification can be provided to a key operator when the amplitude(s) are expected to exceed pre-determined levels over the course of a production run. The method demonstrates advantages in banding detection over whole-page methods.
摘要翻译：公开的是用于在数字成像系统中条带缺陷检测和分析的新型系统和方法。本方法利用图像区域的灰度级和用户图像序列的集合来改进条带分析。其一个实施例包括：将图像分割成区域; 在给定的图像序列上确定每个页面的条带信息并检测问题带状缺陷频率; 为每个识别的条带频率估计每个分段区域的条带幅度和平均灰度级; 以及基于每个区域的条带幅度和平均灰度级，通过插值过程确定图像或图像序列的条带幅度。此后，当在生产运行过程中预期振幅超过预定水平时，可向密钥操作者提供通知。该方法显示了整页检索方法的优势。

8. 发明授权

US08737747B2 Method for automated tire detection and recognition 有权
标题翻译：自动轮胎检测和识别方法
公开(公告)号：US08737747B2
公开(公告)日：2014-05-27
申请号：US13026367
申请日：2011-02-14
申请人： Orhan Bulan , Robert P. Loce , Edgar A. Bernal , Wencheng Wu , Beilei Xu , Thomas F. Wade
发明人： Orhan Bulan , Robert P. Loce , Edgar A. Bernal , Wencheng Wu , Beilei Xu , Thomas F. Wade
IPC分类号： G06K9/00 , G06K9/62 , G06T7/00 , G01M17/02
CPC分类号： G06K9/00 , G01M17/027 , G06K9/6247 , G06K2209/19 , G06T7/0004 , G06T2207/20081 , G06T2207/30236
摘要： Methods and systems for discriminating between tires. One or more images of an unknown tire are received. One or more tread features are extracted from the images. The class of the unknown tire is determined using a classifier that matches the tread features to known tread features.
摘要翻译：用于区分轮胎的方法和系统。接收未知轮胎的一个或多个图像。从图像中提取一个或多个胎面特征。未知轮胎的类别使用将胎面特征与已知胎面特征相匹配的分类器来确定。

9. 发明授权

US08571269B2 Image quality defect detection via sensor characterization and halftone dot classification 有权
标题翻译：通过传感器表征和半色调点分类进行图像质量缺陷检测
公开(公告)号：US08571269B2
公开(公告)日：2013-10-29
申请号：US13049191
申请日：2011-03-16
申请人： Wencheng Wu , Beilei Xu , Edul N. Dalal
发明人： Wencheng Wu , Beilei Xu , Edul N. Dalal
IPC分类号： G06K9/00
CPC分类号： H04N1/52 , H04N1/405
摘要： What is disclosed is a system and method for image quality (IQ) defect detection via classification of halftone dots present on customer prints. In one embodiment, spatially-varying thresholds are applied on the sensed image in order to classify the halftone dots for IQ defect detection. The resolving power of the sensor is characterized and the sensor responses to patches printed with the print device are characterized. A de-blurring filter is designed which is appropriate for compensating the characterized resolving power of the sensor. Image enhancement is applied to the image using the de-blurring filter. Halftone dots present on the prints are classified by analyzing the enhanced image with the results of the sensor response characterization. Once classified, single separation halftone dot images can be more readily analyzed for defects. The present method allows sensor resolution as low as the size of the halftone dots of the printer under test.
摘要翻译：公开的是通过客户印刷品上存在的半色调点的分类的图像质量（IQ）缺陷检测的系统和方法。在一个实施例中，空间变化的阈值被施加在所感测的图像上，以便对用于IQ缺陷检测的半色调点进行分类。表征传感器的分辨率，并对传感器对印刷设备印刷的贴片进行响应。设计了一种去模糊滤波器，适用于补偿传感器的特征分辨率。图像增强应用于使用去模糊滤镜的图像。使用传感器响应表征的结果分析增强图像，将印刷品上存在的半色调点分类。一旦分类，单分离半色调点图像可以更容易地分析缺陷。本方法允许传感器分辨率低于被测打印机的半色调点的大小。

10. 发明授权

US08462388B2 Identifying a color separation wherein a banding defect originates 有权
标题翻译：识别带状缺陷产生的颜色分离
公开(公告)号：US08462388B2
公开(公告)日：2013-06-11
申请号：US12796375
申请日：2010-06-08
申请人： Beilei Xu , Wencheng Wu
发明人： Beilei Xu , Wencheng Wu
IPC分类号： G06F15/00 , G06K1/00 , H04N1/60 , H04N1/46
CPC分类号： H04N1/6047 , H04N1/6036
摘要： What is disclosed is a novel system and method for banding defect detection in user document images to improve image quality trend analysis in multifunction digital imaging system architectures. The present banding detection process uses region-based, time sequence analysis, and graylevels of image regions in a collection of a sequence of regions, to improve banding detection. The present method independently analyzes the colorant separations to detect banding due to sources that are colorant-dependent, e.g., due to a single developer housing. This identification can be performed in the presence of multiple banding defects.
摘要翻译：公开了一种用于在用户文档图像中条带缺陷检测的新型系统和方法，以改善多功能数字成像系统架构中的图像质量趋势分析。本发明的条带检测过程使用区域，时间序列分析和区域序列集合中的图像区域的灰度级，以改善条带检测。本方法独立地分析着色剂分离，以检测由于着色剂依赖性的来源而引起的条纹，例如由于单个显影剂外壳。该识别可以在存在多个条带缺陷的情况下进行。

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