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公开(公告)号：US07903876B2
公开(公告)日：2011-03-08
申请号：US11679664
申请日：2007-02-27
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。
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2.发明申请Low Memory Auto-Focus and Exposure System for Large Multi-Frame Image Acquisition 失效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
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。
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公开(公告)号：US20080205759A1
公开(公告)日：2008-08-28
申请号：US11679648
申请日：2007-02-27
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。
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公开(公告)号：US20090213224A1
公开(公告)日：2009-08-27
申请号：US12435889
申请日：2009-05-05
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。
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公开(公告)号：US07554575B2
公开(公告)日：2009-06-30
申请号：US11260964
申请日：2005-10-28
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。
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公开(公告)号：US20080205758A1
公开(公告)日：2008-08-28
申请号：US11679664
申请日：2007-02-27
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。
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7.发明授权Low memory auto-focus and exposure system for large multi-frame image acquisition 失效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
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。
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公开(公告)号：US07873216B2
公开(公告)日：2011-01-18
申请号：US11679648
申请日：2007-02-27
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。
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公开(公告)号：US07733404B2
公开(公告)日：2010-06-08
申请号：US12435889
申请日：2009-05-05
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。
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公开(公告)号：US08197070B2
公开(公告)日：2012-06-12
申请号：US12329099
申请日：2008-12-05
申请人： Kar-Han Tan , Jing Xiao , Anoop K. Bhattacharjya
发明人： Kar-Han Tan , Jing Xiao , Anoop K. Bhattacharjya
IPC分类号： G03B21/00
CPC分类号： G03B21/26 , G01B11/25 , G01B11/2509 , G06T7/80 , G06T2207/10024 , H04N9/3182 , H04N9/3185 , H04N9/3194 , H04N17/002
摘要： Disclosed are embodiments of systems and methods for identifying features using color information in an image. The image may be formed from one or more display images comprising color information and features or feature components. Because color information may be used to identify features, more than one feature or feature component may be displayed in a display image. Because a plurality of features may be identified in a calibration image, an image system, such as a projector-camera system, can reduce the number of display images needed to calibrate the system.
摘要翻译： 公开了用于使用图像中的颜色信息来识别特征的系统和方法的实施例。 图像可以由包括颜色信息和特征或特征组件的一个或多个显示图像形成。 由于可以使用颜色信息来识别特征，所以可以在显示图像中显示多于一个的特征或特征成分。 由于可以在校准图像中识别多个特征，诸如投影仪 - 照相机系统的图像系统可以减少校准系统所需的显示图像的数量。
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