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1. 发明申请

US20090213224A1 Fast Imaging System Calibration 失效
标题翻译：快速成像系统校准
公开(公告)号：US20090213224A1
公开(公告)日：2009-08-27
申请号：US12435889
申请日：2009-05-05
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： H04N17/00 , H04N5/232
CPC分类号： G09G3/2092 , G06T7/80 , G09G2320/0693
摘要： Systems and methods are disclosed for calibrating an imaging system comprising a processing unit communicatively coupled to one or more imaging devices. The imaging system may also include a display. In an embodiment, a sequence of display features are displayed on a display, and imaged by the imaging device or devices. Spatial data is compiled related to the display features and the corresponding image features. In an embodiment, the display, imaging device or device, or both may be repositioned and another sequence of display features may be presented and the spatial data compiled. Using optimization and calibration techniques, the compiled spatial data may be used to obtain one or more internal imaging device parameters, one or more external parameters, or both.
摘要翻译：公开了用于校准包括通信地耦合到一个或多个成像装置的处理单元的成像系统的系统和方法。成像系统还可以包括显示器。在一个实施例中，显示特征的序列显示在显示器上，并由成像设备或设备成像。与显示特征和相应的图像特征相关的空间数据被编译。在一个实施例中，可以重新定位显示器，成像设备或设备，或者两者，并且可以呈现另一序列的显示特征并且编译空间数据。使用优化和校准技术，编译的空间数据可用于获得一个或多个内部成像设备参数，一个或多个外部参数，或两者。

2. 发明授权

US07554575B2 Fast imaging system calibration 有权
标题翻译：快速成像系统校准
公开(公告)号：US07554575B2
公开(公告)日：2009-06-30
申请号：US11260964
申请日：2005-10-28
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： H04N5/225 , H04N17/00
CPC分类号： G09G3/2092 , G06T7/80 , G09G2320/0693
摘要： Systems and methods are disclosed for calibrating an imaging system comprising a processing unit communicatively coupled to one or more imaging devices. The imaging system may also include a display. In an embodiment, a sequence of display features are displayed on a display, and imaged by the imaging device or devices. Spatial data is compiled related to the display features and the corresponding image features. In an embodiment, the display, imaging device or device, or both may be repositioned and another sequence of display features may be presented and the spatial data compiled. Using optimization and calibration techniques, the compiled spatial data may be used to obtain one or more internal imaging device parameters, one or more external parameters, or both.
摘要翻译：公开了用于校准包括通信地耦合到一个或多个成像装置的处理单元的成像系统的系统和方法。成像系统还可以包括显示器。在一个实施例中，显示特征的序列显示在显示器上，并由成像设备或设备成像。与显示特征和相应的图像特征相关的空间数据被编译。在一个实施例中，可以重新定位显示器，成像设备或设备，或者两者，并且可以呈现另一序列的显示特征并且编译空间数据。使用优化和校准技术，编译的空间数据可用于获得一个或多个内部成像设备参数，一个或多个外部参数，或两者。

3. 发明申请

US20080205758A1 Distortion Correction of a Captured Image 有权
标题翻译：捕获图像的失真校正
公开(公告)号：US20080205758A1
公开(公告)日：2008-08-28
申请号：US11679664
申请日：2007-02-27
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： G06K9/03
CPC分类号： G06T5/006 , G06K9/32 , G06K9/42 , G06K2209/01 , G06T3/608
摘要： Disclosed are embodiments of systems and methods for eliminating or reducing the distortion in a scanned image. Embodiments of the present invention allow for the automatic pruning, de-skewing, and unwarping of an image using document layout information. In embodiments, dominant baselines may be selected by examining the letter regions on boundary baselines rather than examining the entire document layout. The dominant baselines may then be used to reduce distortion in the image. It shall be noted that present invention is robust enough to handle many types of content, including different languages, as well as documents with different layouts. The present invention may also be applied to images obtained from bound documents and flat documents.
摘要翻译：公开了用于消除或减少扫描图像中的失真的系统和方法的实施例。本发明的实施例允许使用文档布局信息自动修剪，去偏斜和不正确的图像。在实施例中，主要基线可以通过检查边界基线上的字母区域而不是检查整个文档布局来选择。然后可以使用主要基线来减少图像中的失真。应当注意，本发明足够坚固以处理包括不同语言的许多类型的内容以及具有不同布局的文档。本发明还可以应用于从绑定文档和平面文档获得的图像。

4. 发明授权

US07903876B2 Distortion correction of a captured image 有权
标题翻译：拍摄图像的失真校正
公开(公告)号：US07903876B2
公开(公告)日：2011-03-08
申请号：US11679664
申请日：2007-02-27
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： G06K9/34
CPC分类号： G06T5/006 , G06K9/32 , G06K9/42 , G06K2209/01 , G06T3/608
摘要： Disclosed are embodiments of systems and methods for eliminating or reducing the distortion in a scanned image. Embodiments of the present invention allow for the automatic pruning, de-skewing, and unwarping of an image using document layout information. In embodiments, dominant baselines may be selected by examining the letter regions on boundary baselines rather than examining the entire document layout. The dominant baselines may then be used to reduce distortion in the image. It shall be noted that present invention is robust enough to handle many types of content, including different languages, as well as documents with different layouts. The present invention may also be applied to images obtained from bound documents and flat documents.
摘要翻译：公开了用于消除或减少扫描图像中的失真的系统和方法的实施例。本发明的实施例允许使用文档布局信息自动修剪，去偏斜和不正确的图像。在实施例中，主要基线可以通过检查边界基线上的字母区域而不是检查整个文档布局来选择。然后可以使用主要基线来减少图像中的失真。应当注意，本发明足够坚固以处理包括不同语言的许多类型的内容以及具有不同布局的文档。本发明还可以应用于从绑定文档和平面文档获得的图像。

5. 发明申请

US20090021595A1 Low Memory Auto-Focus and Exposure System for Large Multi-Frame Image Acquisition 失效
标题翻译：用于大型多帧图像采集的低内存自动对焦和曝光系统
公开(公告)号：US20090021595A1
公开(公告)日：2009-01-22
申请号：US11778968
申请日：2007-07-17
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： H04N5/228 , G03B41/00
CPC分类号： G03B13/36 , G01N21/8851 , G01N21/956 , G01N2021/8887 , G02B7/34 , H04N5/23212 , H04N5/235
摘要： Embodiments of the invention are described that provide automated and efficient optimization of camera settings. In certain embodiments of the invention, both focus and exposure settings are determined based on an analysis of compressed images taken of a frame. Based on this analysis, the camera focus and exposure settings are set to provide a preferred image quality of the particular frame. This optimization of the focus and exposure settings is performed at each frame within the multi-frame image source. As a result, each frame image is independently optimized and addresses variations, such as light and surface inconsistencies, across the multi-frame image source.
摘要翻译：描述了本发明的实施例，其提供相机设置的自动且有效的优化。在本发明的某些实施例中，聚焦和曝光设置都是基于对一帧的压缩图像的分析来确定的。基于该分析，设置相机对焦和曝光设置以提供特定帧的优选图像质量。聚焦和曝光设置的这种优化在多帧图像源内的每帧执行。结果，每个帧图像被独立地优化，并且解决多帧图像源之间的变化，例如光和表面不一致性。

6. 发明申请

US20080205759A1 Distortion Correction of a Scanned Image 有权
标题翻译：扫描图像的失真校正
公开(公告)号：US20080205759A1
公开(公告)日：2008-08-28
申请号：US11679648
申请日：2007-02-27
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： G06K9/34
CPC分类号： G06K9/3283
摘要： Disclosed are embodiments of systems and methods for eliminating or reducing the distortion in a scanned image. In embodiments, the image is segmented into foreground and background pixels. Foreground pixels may be grouped into “letters.” Using index-based searching, “letters” may be grouped into “words” and “words” may be grouped into baselines. One or more dominant baselines may be selected and the characteristics of the dominant baseline or baselines may be used to unwarp the image.
摘要翻译：公开了用于消除或减少扫描图像中的失真的系统和方法的实施例。在实施例中，图像被分割成前景和背景像素。前景像素可以分组为“字母”。使用基于索引的搜索，“字母”可以被分组成“单词”，“单词”可以被分组成基线。可以选择一个或多个主要基线，并且可以使用主要基线或基线的特征来去除图像。

7. 发明授权

US07969475B2 Low memory auto-focus and exposure system for large multi-frame image acquisition 失效
标题翻译：低内存自动对焦和曝光系统，适用于大型多帧图像采集
公开(公告)号：US07969475B2
公开(公告)日：2011-06-28
申请号：US11778968
申请日：2007-07-17
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： H04N5/228
CPC分类号： G03B13/36 , G01N21/8851 , G01N21/956 , G01N2021/8887 , G02B7/34 , H04N5/23212 , H04N5/235
摘要： Embodiments of the invention are described that provide automated and efficient optimization of camera settings. In certain embodiments of the invention, both focus and exposure settings are determined based on an analysis of compressed images taken of a frame. Based on this analysis, the camera focus and exposure settings are set to provide a preferred image quality of the particular frame. This optimization of the focus and exposure settings is performed at each frame within the multi-frame image source. As a result, each frame image is independently optimized and addresses variations, such as light and surface inconsistencies, across the multi-frame image source.
摘要翻译：描述了本发明的实施例，其提供相机设置的自动且有效的优化。在本发明的某些实施例中，聚焦和曝光设置都是基于对一帧的压缩图像的分析来确定的。基于该分析，设置相机对焦和曝光设置以提供特定帧的优选图像质量。聚焦和曝光设置的这种优化在多帧图像源内的每帧执行。结果，每个帧图像被独立地优化，并且解决多帧图像源之间的变化，例如光和表面不一致性。

8. 发明授权

US07873216B2 Distortion correction of a scanned image 有权
标题翻译：扫描图像的失真校正
公开(公告)号：US07873216B2
公开(公告)日：2011-01-18
申请号：US11679648
申请日：2007-02-27
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： G06K9/34
CPC分类号： G06K9/3283
摘要： Disclosed are embodiments of systems and methods for eliminating or reducing the distortion in a scanned image. In embodiments, the image is segmented into foreground and background pixels. Foreground pixels may be grouped into “letters.” Using index-based searching, “letters” may be grouped into “words” and “words” may be grouped into baselines. One or more dominant baselines may be selected and the characteristics of the dominant baseline or baselines may be used to unwarp the image.
摘要翻译：公开了用于消除或减少扫描图像中的失真的系统和方法的实施例。在实施例中，图像被分割成前景和背景像素。前景像素可以被分组为“字母”。使用基于索引的搜索，“字母”可以被分组为“单词”，“单词”可以被分组成基线。可以选择一个或多个主要基线，并且可以使用主要基线或基线的特征来去除图像。

9. 发明授权

US07733404B2 Fast imaging system calibration 失效
标题翻译：快速成像系统校准
公开(公告)号：US07733404B2
公开(公告)日：2010-06-08
申请号：US12435889
申请日：2009-05-05
申请人： Ali Zandifar , Anoop K. Bhattacharjya
发明人： Ali Zandifar , Anoop K. Bhattacharjya
IPC分类号： H04N5/222 , H04N17/00 , G06K9/32 , G01D18/00
CPC分类号： G09G3/2092 , G06T7/80 , G09G2320/0693
摘要： Systems and methods are disclosed for calibrating an imaging system comprising a processing unit communicatively coupled to one or more imaging devices. The imaging system may also include a display. In an embodiment, a sequence of display features are displayed on a display, and imaged by the imaging device or devices. Spatial data is compiled related to the display features and the corresponding image features. In an embodiment, the display, imaging device or device, or both may be repositioned and another sequence of display features may be presented and the spatial data compiled. Using optimization and calibration techniques, the compiled spatial data may be used to obtain one or more internal imaging device parameters, one or more external parameters, or both.
摘要翻译：公开了用于校准包括通信地耦合到一个或多个成像装置的处理单元的成像系统的系统和方法。成像系统还可以包括显示器。在一个实施例中，显示特征的序列显示在显示器上，并由成像设备或设备成像。与显示特征和相应的图像特征相关的空间数据被编译。在一个实施例中，可以重新定位显示器，成像设备或设备，或者两者，并且可以呈现另一序列的显示特征并且编译空间数据。使用优化和校准技术，编译的空间数据可用于获得一个或多个内部成像设备参数，一个或多个外部参数，或两者。

10. 发明授权

US08379229B2 Simulation of a printed dot-pattern bitmap 有权
标题翻译：模拟打印的点阵位图
公开(公告)号：US08379229B2
公开(公告)日：2013-02-19
申请号：US12031217
申请日：2008-02-14
申请人： Ali Zandifar
发明人： Ali Zandifar
IPC分类号： G06F3/12
CPC分类号： G06T7/0004 , G06T2207/30141
摘要： Embodiments of the present invention enable generation of a simulated reference bitmap image that corresponds to a dot-pattern image. Certain applications of the present invention are its use in various embodiments of a system for inspection of a printed circuit board (“PCB”) substrate. In embodiments, a dot-pattern image and user-input configuration parameters are used to create an initialized simulated reference bitmap, and the dot pattern is mapped onto the reference bitmap using a scaling factor. In embodiments, reference bitmaps of individual sections of a dot-pattern image may be generated separately.
摘要翻译：本发明的实施例能够生成对应于点图案图像的模拟参考位图图像。本发明的某些应用是在用于检查印刷电路板（PCB）基板的系统的各种实施例中的用途。在实施例中，使用点图案图像和用户输入配置参数来创建初始化的模拟参考位图，并且使用缩放因子将点图案映射到参考位图。在实施例中，可以分别生成点图案图像的各个部分的参考位图。

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