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    • 17. 发明申请
    • RETRIEVING AND SHARING ELECTRONIC DOCUMENTS USING PAPER
    • 使用纸张检索和共享电子文档
    • US20100030778A1
    • 2010-02-04
    • US12184124
    • 2008-07-31
    • Qiong LiuPatrick ChiuLynn D. Wilcox
    • Qiong LiuPatrick ChiuLynn D. Wilcox
    • G06F17/30
    • G06F17/30011G06F17/30247G06K9/00442G06K9/4676G06K2209/01
    • In an embodiment of the invention, an electronic document (e-document) can be searched and found by capturing an image of the printed document. Instead of typing in a file name or searching through multiple directories, the user simply takes a picture of the document with a camera and the system uses the document image to locate the e-document. In an alternative embodiment of the invention, an image of a printed document can be useful for remote document sharing. In various embodiments of the invention, sharing an image of a printed document can be used to email a high quality paper document, send a high quality fax, or open a document to a page containing an annotation. Through co-design of the feature extraction and search algorithm in the system, the image feature detection robustness and search speed are improved at the same time.
    • 在本发明的实施例中,可以通过捕获打印文档的图像来搜索和发现电子文档(电子文档)。 用户只需使用相机对文档进行照片,而不是输入文件名或搜索多个目录,系统会使用文档图像来定位电子文档。 在本发明的替代实施例中,打印文档的图像可用于远程文档共享。 在本发明的各种实施例中,共享打印文档的图像可以用于向高质量的纸质文档发送高质量的传真,或者向包含注释的页面打开文档。 通过系统中特征提取和搜索算法的共同设计,同时提高了图像特征检测的鲁棒性和搜索速度。