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    • 7. 发明授权
    • Simulation of a printed dot-pattern bitmap
    • 模拟打印的点阵位图
    • US08379229B2
    • 2013-02-19
    • US12031217
    • 2008-02-14
    • Ali Zandifar
    • Ali Zandifar
    • G06F3/12
    • G06T7/0004G06T2207/30141
    • Embodiments of the present invention enable generation of a simulated reference bitmap image that corresponds to a dot-pattern image. Certain applications of the present invention are its use in various embodiments of a system for inspection of a printed circuit board (“PCB”) substrate. In embodiments, a dot-pattern image and user-input configuration parameters are used to create an initialized simulated reference bitmap, and the dot pattern is mapped onto the reference bitmap using a scaling factor. In embodiments, reference bitmaps of individual sections of a dot-pattern image may be generated separately.
    • 本发明的实施例能够生成对应于点图案图像的模拟参考位图图像。 本发明的某些应用是在用于检查印刷电路板(PCB)基板的系统的各种实施例中的用途。 在实施例中,使用点图案图像和用户输入配置参数来创建初始化的模拟参考位图,并且使用缩放因子将点图案映射到参考位图。 在实施例中,可以分别生成点图案图像的各个部分的参考位图。
    • 8. 发明授权
    • String reconstruction using multiple strings
    • 使用多个字符串进行字符串重构
    • US08156414B2
    • 2012-04-10
    • US11948410
    • 2007-11-30
    • Ali ZandifarJing Xiao
    • Ali ZandifarJing Xiao
    • H03M13/00G06F11/08
    • H04L1/0045
    • Disclosed are systems and methods for reconstructing a string comprising characters given multiple strings that may contain one or more errors. In embodiments, pairwise comparisons of strings within a set of candidate strings that may contain errors is performed so that measures related to similarity between the strings in each pair may be calculated. In embodiments, an alignment and voting method using at least some of the similarity measures may be employed to generate a reconstructed string. In embodiments, the reconstructed string may be validated, and in embodiments, its characters may be converted to another encoding, if necessary.
    • 公开了用于重构字符串的系统和方法,其包括给定多个可能包含一个或多个错误的字符串的字符。 在实施例中,执行可能包含错误的一组候选字符串内的字符串的成对比较,使得可以计算与每对中的字符串之间的相似性相关的度量。 在实施例中,可以采用使用至少一些相似性度量的对准和投票方法来生成重构的串。 在实施例中,重建的字符串可以被验证,并且在实施例中,如果需要,其字符可以被转换为另一个编码。
    • 9. 发明申请
    • Embedding Data in Images
    • 在图像中嵌入数据
    • US20090136082A1
    • 2009-05-28
    • US11945853
    • 2007-11-27
    • Ali ZandifarChe-Bin LiuJing Xiao
    • Ali ZandifarChe-Bin LiuJing Xiao
    • G06K9/00
    • G06T1/0021
    • Disclosed are embodiments of systems and methods for embedding and/or extracting data from images. In embodiments, an image may be segmented into regions, and characters or other image groups within a segmented region may be determined to be embedding sites. A data vector may be embedded into a set of corresponding ordered embedding sites by representing each data element as different intensity values assigned to the pixels within one portion of an embedding site relative to the pixels in another portion of the embedding site. In embodiments, embedded data may be extracted from an image by extracting and decoding a set of bit values from a set of identified and ordered embedding sites.
    • 公开了用于从图像嵌入和/或提取数据的系统和方法的实施例。 在实施例中,图像可以被分割成区域,并且分割区域内的字符或其他图像组可以被确定为嵌入位点。 通过将每个数据元素表示为相对于嵌入位点的另一部分中的像素分配给嵌入站点的一部分内的像素的不同强度值,可以将数据向量嵌入到一组相应的有序嵌入位点中。 在实施例中,可以通过从一组已识别和排序的嵌入位点提取和解码一组位值来从图像中提取嵌入数据。
    • 10. 发明申请
    • Segmenting a String Using Similarity Values
    • 使用相似性值分割字符串
    • US20090129676A1
    • 2009-05-21
    • US11943285
    • 2007-11-20
    • Ali ZandifarJing Xiao
    • Ali ZandifarJing Xiao
    • G06K9/46
    • G06K9/0055
    • Disclosed are systems and methods for segmenting a string comprised of one or more string segments using similarity values. In embodiments, each string segment may contain at least a variation of a marker string that may be used to separate string segments in the string. In embodiments, a similarity value representing the result of comparing the marker string to substrings of the string may be computed, and a similarity vector representing the set of comparisons for the locations on the string may be generated. In embodiments, the similarity vector may be used to identify candidate segmentation locations in the string. In embodiments, a set of segmentation locations in the string may be derived from the candidate segmentation locations in the string, and the string may be segmented according to the set of segmentation locations.
    • 公开了用于使用相似性值来分割由一个或多个字符串段组成的字符串的系统和方法。 在实施例中,每个字符串段可以至少包含可用于分离字符串中的字符串段的标记字符串的变体。 在实施例中,可以计算表示将标记串与字符串的子串进行比较的结果的相似度值,并且可以生成表示字符串上的位置的比较集合的相似度向量。 在实施例中,可以使用相似度向量来识别字符串中的候选分割位置。 在实施例中,可以从字符串中的候选分割位置导出字符串中的一组分割位置,并且可以根据分割位置集来分割字符串。