UPC码和产品编码可以在包装上找到。

The UPC and lot number can be found on the product packaging.

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产品包装图象的预处理是产品编码定位与识别前最关键的一步。

A very important step before location and recognition is the pre-processing of the product package image.

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例如，当搜索产品时，用户可以输入如下信息：产品名称，产品编码、产品id已经相应的搜索类型(LIKE或EQUALS)。

For example, when searching for product a user can enter the following information: product name, product code, product id and also the corresponding type of search (LIKE or EQUALS).

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