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    OVERLAY HUMAN INTERACTIVE PROOF SYSTEM AND TECHNIQUES
    2.
    发明授权
    OVERLAY HUMAN INTERACTIVE PROOF SYSTEM AND TECHNIQUES 有权

    公开(公告)号：EP2569727B1

    公开(公告)日：2018-08-22

    申请号：EP11781096.0

    申请日：2011-05-09

    申请人： Microsoft Technology Licensing, LLC

    发明人： LI, Weisheng ,  ZHU, Bin ,  XU, Ning ,  LIU, Jia

    IPC分类号： G06F21/36 ,  G06F9/44 ,  H04L9/32

    CPC分类号： G06F9/44 ,  G06F21/36 ,  G06F2221/2133 ,  H04L9/32

    摘要： The overlay human interactive proof system (“OHIPS”) and techniques described herein operate in conjunction with any known or later developed computer-based applications or services to provide secure access to resources by reliably differentiating between human and non-human users. Humans have a generally superior ability to differentiate misaligned characters or objects from correctly aligned ones. As such, the OHIP splits an image including one or more visual objects into two or more partial images to form a HIP. The partial images may also be further split into groups of sub-partial images, and/or the partial images (or the sub-partial images) may be moved, so that at any given alignment position, a user can recognize only some visual objects. A user is instructed to reassemble the partial images at one or more predetermined alignment positions using a GUI, and the user is asked to identify information regarding one or more visible objects.