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    Systems and methods for three dimensional geometric reconstruction of captured image data
    41.
    发明授权
    Systems and methods for three dimensional geometric reconstruction of captured image data 有权
    捕获图像数据三维几何重建的系统和方法

    公开(公告)号：US09208536B2

    公开(公告)日：2015-12-08

    申请号：US14491901

    申请日：2014-09-19

    Applicant: Kofax, Inc.

    Inventor： Anthony Macciola ,  Jiyong Ma ,  Alexander Shustorovich ,  Christopher W. Thrasher ,  Jan Amtrup

    IPC: G06K9/00 ,  G06T3/00

    CPC classification number: G06K9/52 ,  G01B11/14 ,  G06T3/00 ,  G06T5/006 ,  G06T7/60 ,  G06T2207/30176

    Abstract: In various embodiments, methods, systems, and computer program products for processing digital images captured by a mobile device are disclosed. Myriad features enable and/or facilitate processing of such digital images using a mobile device that would otherwise be technically impossible or impractical, and furthermore address unique challenges presented by images captured using a camera rather than a traditional flat-bed scanner, paper-feed scanner, or multifunction peripheral. Notably, the presently disclosed systems and techniques enable three-dimensional reconstruction of objects depicted in image captured using a camera of a mobile device. The reconstruction corrects or compensates for perspective distortion caused by camera-based capture.

    Abstract translation: 在各种实施例中，公开了用于处理由移动设备捕获的数字图像的方法，系统和计算机程序产品。 无数的功能使得能够使用移动设备处理这样的数字图像，否则这些数字图像在技术上是不可能的或不切实际的，并且还解决了使用相机而不是传统的平板扫描器，进纸扫描器 ，或多功能外设。 值得注意的是，目前公开的系统和技术使得能够使用移动设备的照相机捕获的图像中描绘的对象进行三维重建。 重建校正或补偿基于相机拍摄的透视失真。

    Iterative recognition-guided thresholding and data extraction
    47.
    发明授权
    Iterative recognition-guided thresholding and data extraction 有权

    公开(公告)号：US11062163B2

    公开(公告)日：2021-07-13

    申请号：US16267205

    申请日：2019-02-04

    Applicant: Kofax, Inc.

    Inventor： Christopher W. Thrasher ,  Alexander Shustorovich ,  Stephen Michael Thompson ,  Jan W. Amtrup ,  Anthony Macciola

    IPC: G06K9/34 ,  G06T7/11 ,  G06T7/136 ,  G06T7/187 ,  G06K9/32 ,  G06K9/46 ,  G06K9/38

    Abstract: Techniques for binarization and extraction of information from image data are disclosed. The inventive concepts include independently binarizing portions of the image data on the basis of individual features, e.g. per connected component, and using multiple different binarization thresholds to obtain the best possible binarization result for each portion of the image data. Determining the quality of each binarization result may be based on attempted recognition and/or extraction of information therefrom. Independently binarized portions may be assembled into a contiguous result. In one embodiment, a method includes: identifying a region of interest within a digital image; generating a plurality of binarized images based on the region of interest using different binarization thresholds; subjecting the region of interest within a digital image to a plurality of thresholding and extraction iterations; and extracting data from some or all of the plurality of binarized images. Corresponding systems and computer program products are disclosed.

    Mobile document detection and orientation based on reference object characteristics
    49.
    发明授权
    Mobile document detection and orientation based on reference object characteristics 有权

    公开(公告)号：US10699146B2

    公开(公告)日：2020-06-30

    申请号：US15672200

    申请日：2017-08-08

    Applicant: Kofax, Inc.

    Inventor： Alexander Shustorovich ,  Christopher W. Thrasher ,  Jiyong Ma ,  Anthony Macciola ,  Jan W. Amtrup

    IPC: G06K9/32 ,  G06K9/00 ,  G06K9/18

    Abstract: In various embodiments, computer program products for detecting, estimating, calculating, etc. characteristics of a document based on reference objects depicted on the document are disclosed. In one approach, a computer program product for processing a digital image depicting a document includes instructions executable by a computer for analyzing the digital image to determine one or more of a presence and a location of one or more reference objects; determining one or more geometric characteristics of at least one of the reference objects; defining one or more region(s) of interest based at least in part on one or more of the determined geometric characteristics; and detecting a presence or absence of an edge of the document within each defined region of interest. Additional embodiments leverage the type of document depicted in the image, multiple frames of image data, and/or calculate or extrapolate document edges rather than locating edges in the image.

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