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About Scan

Last Updated: May 21, 2021

The Scan component is provided by the mPaaS and is originated from the scan feature in Alipay. This component inherits the precise and fast scan capability of Alipay. It can quickly identify barcodes and accurately obtain the information in the barcodes.


The Scan component can scan two-dimensional barcodes (QR codes) and one-dimensional barcodes (barcodes).

Two-dimensional barcodes (QR codes)

  • Gen0 (Common QR code):

  • Gen1 (Visual code. The Gen0 code is superimposed over the image.):

  • Gen2 (Discretization of the dot matrix is optimized based on the Gen1 code. Hidden code is contained.):

  • Gen3 (Visualead custom code):

One-dimensional barcodes (barcodes)

  • EAN8:

  • EAN13:

  • EAN14:

  • EAN18:

  • EAN128:

  • ISBN:

  • ISSN:

  • Code39:

  • Code128:

  • UPC-A:

  • UPC-E:

  • ITF-14:


Compared with similar industry-leading products, the mPaaS has advantages in the code recognition speed and recognition rate under the same conditions.

Fast recognition

Compared with similar products, the mPaaS Scan recognizes QR codes and barcodes faster in the case of the same distance and the same light source.

High recognition rate

Based on the unique blur processing and data evaluation and correction features, the mPaaS can recognize photos that cannot be recognized by albums of similar industry-leading products.

  • This code can be recognized by the cameras of similar products, but cannot be recognized by the albums of similar products.
  • Codes that cannot be recognized by similar products