Camera module group image test system and method

Abstract

The invention provides an image test system for a camera module group, which comprises a computer and a test fixture; the computer is connected with the test fixture. A camera module group and a signal conversion device are arranged on the test fixture. The computer comprises an area segmentation module which is used to segment the image into a plurality of test areas, an image test module which tests the test items of each test area segmented by the area segmentation module, and an operation and judgment module which is used to judge whether the test value of each test item in each test area exceeds the corresponding preset normative value. The invention also provides an image test method for the camera module group. The invention uses an integrated test chart to make integrated test to black corners, colors, gray scales, analysis and other test items, so as to effectively reduce the working hours and further reduce the test space through a vertical test method.

Description

technical field [0001] The invention relates to a testing technology of a camera module, in particular to an image testing system and method of a camera module. Background technique [0002] The image test of the camera module includes test items such as shading, color, gray scale and resolution. Normally, each test item is tested in its corresponding test station. The test station includes: a computer, a test fixture, a light box, and the like. Wherein, the light box includes a light source and a test chart. The camera module to be tested is installed on the test fixture, the focal length of the camera module is adjusted by moving the test fixture, the test chart is imaged, and the test item is tested by the corresponding test program in the computer. [0003] According to the traditional image test method, when testing the test items such as vignetting, color, gray scale and resolution of the camera module, each test item needs a corresponding test station, each test st...

AI Technical Summary

Problems solved by technology

[0006] Each test item needs to be tested separately, which seriously wastes testing man-hours;

[0007] When the test chart is large, the required light box is also relatively large, and in order to fully image the test chart, the test fixture needs to be far away from the test chart, resulting in a large space for testing

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