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    Color processing for bar code symbol compaction
    1.
    发明授权
    Color processing for bar code symbol compaction 失效
    条码符号压实的颜色处理

    公开(公告)号：US5576528A

    公开(公告)日：1996-11-19

    申请号：US363472

    申请日：1994-12-23

    申请人： Steven M. Chew ,  Sundeep Kumar ,  Michael O'Haire

    发明人： Steven M. Chew ,  Sundeep Kumar ,  Michael O'Haire

    IPC分类号： G06K19/06 ,  G06F7/12

    CPC分类号： G06K19/06037 ,  G06K2019/06225

    摘要： A method and apparatus for increasing the information density of a bar code symbol by generating multiple constituent bar code symbols, wherein each one is formed in a different color selected from a group of various primary colors, and overlaying each differently colored symbol on top of each other, thus forming an aggregate bar code symbol of various colors. In areas where the differently colored bars overlap each other, colors distinct from those in the original group of colors are formed. The aggregate bar code symbol is scanned by a solid state imaging device, and the scanned image is resolved by image processing techniques into the three constituent bar code symbols of the various colors. Each bar code symbol is then individually processed and decoded in accordance with the particular symbology used to encode the constituent bar code symbols. As a result of the present invention, multiple bar code symbols are printed in the space normally required by one bar code symbol, and each constituent symbol is separated by color resolution and decoded to form the original data. Thus, the information density of the bar code system is increased without the need for a new symbology. In addition, a single bar code symbol may be divided into multiple portions of substantially the same size and printed substantially over each other in different colors, thus producing a single compacted bar code symbol with increased information density. The compacted bar code symbol may be recovered by scanning and resolving the symbol back into its constituent portions, concatenating the portions together, and decoding the resulting bar code symbol in accordance with standard techniques.

    摘要翻译： 一种用于通过生成多个组成条形码符号来增加条形码符号的信息密度的方法和装置，其中每一个都以不同的原色组合选择的不同颜色形成，并且将每个不同颜色的符号覆盖在每个 从而形成各种颜色的聚集条形码符号。 在不同颜色的条重叠的区域中，形成与原始颜色组不同的颜色。 聚合条形码符号由固态成像装置扫描，并且扫描图像通过图像处理技术解析成各种颜色的三个组成条形码符号。 然后根据用于编码组成条形码符号的特定符号系统对每个条形码符号进行单独处理和解码。 作为本发明的结果，在通常由一个条形码符号需要的空间中打印多个条形码符号，并且每个构成符号通过颜色分辨率分离并被解码以形成原始数据。 因此，条形码系统的信息密度增加，而不需要新的符号系统。 此外，单个条形码符号可以被划分成大致相同尺寸的多个部分，并且以不同的颜色基本上彼此印刷，从而产生具有增加的信息密度的单个压实的条形码符号。 压缩的条形码符号可以通过将符号扫描并分解回其组成部分，将这些部分连接在一起，并根据标准技术对所得到的条形码符号进行解码来恢复。