Visual inspection method for SIM (Subscriber Identity Module)

A technology of visual detection and edge detection algorithm, which is applied in the directions of measuring devices, optical testing flaws/defects, image data processing, etc., and can solve the problems of failing to meet the quality requirements of the SIM module and incomplete detection

Active Publication Date: 2012-10-03
EASTCOMPEACE TECH
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Problems solved by technology

In the detection method of existing SIM module, only limited to detect the scratch and stain on the SIM module, there is no corresponding detection method for many aspects o

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  • Visual inspection method for SIM (Subscriber Identity Module)
  • Visual inspection method for SIM (Subscriber Identity Module)
  • Visual inspection method for SIM (Subscriber Identity Module)

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] An embodiment of the present invention provides a visual inspection method for a SIM module, comprising: using a light source to irradiate the front or back of the SIM module, and collecting a front image or a back image of the SIM module; The back image is subjected to threshold segmentation to obtain several connected regions, and the BLOB analysis method is used to mark the connected regions, and the characteristic parameters of the connected regions ...

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Abstract

The invention discloses a visual inspection method for an SIM (Subscriber Identity Module), and the method comprises the following steps of: irradiating the front side and back side of the SIM by using a light source, and acquiring a front side image or a back side image of the SIM; carrying out threshold segmentation on the front side image or the back side image to obtain a plurality of connected regions, marking the connected regions by using a BLOB (Binary Large Object) analysis method, and calculating characteristic parameters of the connected regions of the front side image; and when the difference between the characteristic parameters of the connected regions of the front side image or the back side image and a standard characteristic parameter is smaller than a preset threshold value, determining that the front side or back side of the SIM as a good product. By utilizing the visual inspection method, the front side and back side of the SIM can be comprehensively inspected so as to achieve the purpose of inspecting whether the SIM quality meets the quality requirements.

Description

technical field [0001] The invention relates to the technical field of SIM module detection, and more specifically, to a visual detection method of a SIM module. Background technique [0002] After the SIM module is produced, the specifications and quality of the SIM module need to be tested. In the detection method of existing SIM module, only limited to detect the scratch and stain on the SIM module, there is no corresponding detection method for many aspects of the SIM module, therefore, the existing SIM module detection method The presence detection is not comprehensive and cannot meet the quality requirements of the SIM module. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a visual inspection method for the SIM module, so as to conduct a comprehensive inspection of the SIM module, thereby ensuring the quality requirements of the SIM module. [0004] The embodiment of the present invention is realized like this...

Claims

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Application Information

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IPC IPC(8): G01N21/88G01B11/00G06T7/00
Inventor 邓泽峰黄小鹏余松森
Owner EASTCOMPEACE TECH
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