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    • 53. 发明授权
    • Positionally encoded document image analysis and labeling
    • 位置编码文件图像分析和标签
    • US07581171B2
    • 2009-08-25
    • US10753176
    • 2004-01-06
    • Jian WangYingnong DangLiyong Chen
    • Jian WangYingnong DangLiyong Chen
    • G06F17/00G06F17/20
    • G06F3/03542G06F3/0321
    • Disclosed embodiments of the invention relate to analyzing document images, which contain positionally encoded information, such as a maze-pattern watermark, and labeling the images based on a degree to which the document's content, such as text, occludes the position-encoding information. Depending on the degree of such occlusion, it may not be possible to extract enough position-encoding bits from a camera-captured image of the document to determine the camera-captured image's location within the document. An analysis-and-labeling module receives, as input, image data output by an image-generation-and-capturing module and off-line training data; performs analysis-and-labeling processing; and outputs image-label information. The results of document-analysis-and-labeling processing may be used for efficiently determining a location of a camera-captured image within a positionally encoded document.
    • 本发明的公开的实施例涉及分析包含诸如迷宫图案水印的位置编码信息的文档图像,并且基于文档的内容(例如文本)封闭位置编码信息的程度来标记图像。 根据这种遮挡的程度,可能无法从文档的摄像机拍摄图像中提取足够的位置编码位,以确定摄像机捕获的图像在文档内的位置。 分析标签模块接收由图像生成和捕获模块输出的图像数据和离线训练数据作为输入; 执行分析和标签处理; 并输出图像标签信息。 文档分析和标签处理的结果可用于有效地确定位置编码的文档内的相机拍摄图像的位置。
    • 57. 发明申请
    • Software error report analysis
    • 软件错误报告分析
    • US20090006883A1
    • 2009-01-01
    • US11823213
    • 2007-06-27
    • Dongmei ZhangYingnong DangXiaohui HouSong HuangJian Wang
    • Dongmei ZhangYingnong DangXiaohui HouSong HuangJian Wang
    • G06F11/00
    • G06F11/366
    • Described herein is technology for, among other things, accessing error report information. It involves various techniques and tools for analyzing and interrelating failure data contained in error reports and thereby facilitating developers to more easily and quickly solve programming bugs. Numerous parameters may also be specified for selecting and searching error reports. Several reliability metrics are provided to better track software reliability situations. The reliability metrics facilitate the tracking of the overall situation of failures that happen in the real word by providing metrics based on error reports (e.g., failure occurrence trends, failure distributions across different languages).
    • 这里描述的是用于访问错误报告信息的技术。 它涉及用于分析和相互关联错误报告中包含的故障数据的各种技术和工具,从而方便开发人员更轻松,快速地解决编程错误。 还可以指定许多参数来选择和搜索错误报告。 提供了几个可靠性指标来更好地跟踪软件可靠性情况。 可靠性指标通过提供基于错误报告(例如,故障发生趋势,跨不同语言的故障分布)的度量来促进跟踪真实单词中发生的故障的总体情况。
    • 58. 发明申请
    • Camera-pen-tip mapping and calibration
    • 相机笔尖映射和校准
    • US20050146518A1
    • 2005-07-07
    • US10753023
    • 2004-01-06
    • Jian WangLiyong ChenYingnong DangXiaoxu Ma
    • Jian WangLiyong ChenYingnong DangXiaoxu Ma
    • G06F3/041G06F3/00G06F3/03G06F3/033G06K19/06G09G5/00
    • G06F3/03545G06F3/0321
    • X-y positions of a digital pen's tip may be determined by using a calibration parameter to map the x-y positions of the respective centers of images captured by the pen's camera. The calibration parameter may be generated by iteratively calculating estimates of the calibration parameter. Calibration input data may be produced by a user placing the pen tip in a fixed location on a surface, which may be a positionally encoded medium, such as paper, and then rotating the pen and/or moving the opposite end of the pen in various directions to capture multiple images for use in generating the calibration parameter. A user may perform such a calibration procedure without the need for complicated calibration equipment typically used in connection with conventional calibration techniques.
    • 数字笔尖的X-Y位置可以通过使用校准参数来确定由笔的相机拍摄的各个中心的x-y位置来确定。 可以通过迭代地计算校准参数的估计来生成校准参数。 校准输入数据可以由用户将笔尖放置在表面上的固定位置(其可以是位置编码的介质,例如纸)然后旋转笔和/或使笔的相对端移动到各种 捕获多个图像以用于生成校准参数的方向。 用户可以执行这样的校准过程,而不需要通常结合常规校准技术使用的复杂校准设备。
    • 59. 发明授权
    • Preprocessing for information pattern analysis
    • 预处理信息模式分析
    • US07920753B2
    • 2011-04-05
    • US12138339
    • 2008-06-12
    • Jian WangLiyong ChenYingnong Dang
    • Jian WangLiyong ChenYingnong Dang
    • G06K9/36
    • G06K9/228G06K9/38G06K2209/01
    • Pre-processing techniques for processing an image to improve the distinctiveness of an information pattern captured in the image before the information pattern is analyzed in a decoding process. The brightness of an image first is normalized by dividing the image into blocks of areas, such as pixels. A brightness distribution value then is determined for each area of the image by fitting the brightness of its surrounding blocks using bilinear interpolation and extrapolation, and a normalized brightness value for each area can then be obtained by dividing the original brightness value by the brightness distribution value. Next, masks are created to distinguish the information pattern from content captured in the image. The masks may be generated based upon contrast differences between the brightness of pixels representing the information pattern, the brightness of pixels representing content, and the brightness of pixels representing the background of the writing medium.
    • 用于处理图像以提高在解码过程中分析信息模式之前在图像中捕获的信息模式的独特性的预处理技术。 首先通过将图像划分成诸如像素的区域的块来对图像的亮度进行归一化。 然后通过使用双线性插值和外推拟合其周围块的亮度来确定图像的每个区域的亮度分布值,然后可以通过将原始亮度值除以亮度分布值来获得每个区域的归一化亮度值 。 接下来,创建掩模以将信息模式与图像中捕获的内容区分开。 可以基于表示信息图案的像素的亮度,表示内容的像素的亮度和表示书写介质的背景的像素的亮度之间的对比度差异来生成掩模。