Decoding barcodes from images with varying degrees of focus
    1.
    发明授权
    Decoding barcodes from images with varying degrees of focus 有权
    从不同程度的图像解码条形码

    公开(公告)号:US08733650B1

    公开(公告)日:2014-05-27

    申请号:US13465900

    申请日:2012-05-07

    IPC分类号: G06K5/00

    摘要: Various algorithms are presented that enable an image of a barcode, captured by a camera of an electronic device, to be analyzed and decoded for use in obtaining information about an object or item associated with the barcode. The algorithms can account for variations in focus of the image, as may result in blur due to movement or a lack of auto-focus features. An offline training phase can be used to generate a set of possible symbol appearance templates, where at least some of the templates reflect simulations for varying levels and types of noise in an image. A decoding phase compares these templates to a captured image and performs a sequence-wide optimization to determine the overall most likely sequence of digits.

    摘要翻译: 呈现各种算法,使得能够分析和解码由电子设备的照相机拍摄的条形码的图像,以用于获得关于与条形码相关联的对象或物品的信息。 这些算法可以解释图像焦点的变化,因为可能会由于移动或缺少自动对焦的特征造成模糊。 离线训练阶段可以用于生成一组可能的符号外观模板,其中至少一些模板反映了图像中不同级别和类型的噪声的模拟。 解码阶段将这些模板与捕获的图像进行比较,并执行序列范围优化以确定整体最可能的数字序列。