Method for recognizing and memorizing pattern for image measurement
A graphic recognition and graphic technology, applied in the field of graphic recognition, can solve the problems of time-consuming, large memory space consumption, inability to obtain the exact location and size of different places, etc., to achieve the effect of occupying less memory space and improving the running speed.
Inactive Publication Date: 2003-06-11
INVENTEC CORP
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Problems solved by technology
[0004] In the field of automatic testing, image testing is a difficult one. The basic problem is: how to replace manual image recognition with an automated process, and judge its right or wrong and quality
This is the image recognition technology. Its most basic function is to find out the differences between the graphics. At present, most of the existing application programs for comparing two graphics can only judge whether they are the same, but cannot get the differences. The exact position and size, especially for the comparison of multiple pictures, the position and size of the difference can only be obtained by saving each picture as a bitmap first, and then comparing and recording the differences. It will be time-consuming and consume a lot of memory space, so this method is not suitable for testing a large number of graphics
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[0011] The present invention is a method for pattern recognition and storage of image testing. This method can be divided into the following three steps:
[0012] 1. Divide the image into at least four areas, compare with the corresponding areas of a system graphic, and record the differences between the graphic and the system graphic.
[0013] 2. Expand the area recorded in the previous step, and compare it with the relative position of the system graphic to obtain the correct position of the difference and find the identification signal in the system graphic.
[0014] 3. After adding the identification signal to the differences of the system graphics that have obtained the correct position, save it as a file.
[0015] Each of the above steps further contains its detailed steps, refer to Figure 1A , this figure is a flow chart (1) of the method steps of pattern recognition and storage of the image test of the present invention.
[0016] The first step of the present inventi...
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The invented method is applicable to the system for automatic image testing. When the automatic image testing system carries out the image testing, the image to be tested is divided into several areas, which are compared with the images stored in the system. The recognition information is added to the different areas. The related information is recorded and stored as the image files. Then, these image files are saved to compare the images to be tested.
Description
technical field [0001] The invention relates to a pattern recognition method, in particular to a pattern recognition and storage method applied to an automatic test system when the automatic test system performs image testing. Background technique [0002] Testing engineering is an extremely important link in the production process of electronic products. In order to ensure a high level of product quality, it is also necessary to rely on testing work to check. The early testing work was done manually by simple testing equipment, but this This type of testing can only check the functionality of electronic products and depends on the skill level and physical condition of the person. [0003] With the rapid progress of the electronic industry, the circuits of electronic products are becoming more and more complex, so the test system controlled by computer is also widely used. This test system is called automatic test equipment, which not only improves efficiency, but also can c...
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IPC IPC(8): G06K9/68
Inventor 林光信陈玄同刘萍
Owner INVENTEC CORP