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Detection method and device

A detection method and technology of a detection device, which are applied in the detection field, can solve the problems of low detection accuracy, missed detection, incomplete detection points, etc., and achieve the effect of improving detection accuracy and avoiding missed detection.

Pending Publication Date: 2021-03-19
O FILM IMAGE TECH (GUANGZHOU) CO LTD
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Problems solved by technology

However, the detected SFR value is detected by fixed-point detection in each field of view. These specified detection points are not comprehensive, which may easily lead to missed detection and make the detection accuracy not high.

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Embodiment Construction

[0033] 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 creative efforts fall within the protection scope of the present invention.

[0034] see figure 1 , figure 1 It is a schematic structural diagram of the detection device provided by the first embodiment of the present invention.

[0035] A detection device 100 is used for detecting a camera module 200 . The detection device 100 includes: a light source device 10 and a processing device 50 . The light source device 10 is used to generate detection light. The processing device 50 is used for obtaining the light source image captured by the...

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Abstract

The invention provides a detection device and method which are used for detecting the abnormality of a camera module. The method comprises the following steps: acquiring a light source image shot by aligning a to-be-detected camera module with a light source device; processing the light source image to obtain a light intensity image; according to the light intensity imaging graph and a preset light intensity imaging graph, judging whether imaging of the camera module is abnormal or not; under the condition that the camera module is judged to be abnormal in imaging, obtaining an abnormal type of the abnormal imaging caused by the camera module according to the light intensity distribution in the light intensity imaging graph. Whether the to-be-detected camera module is abnormal or not and an abnormal reason are detected by analyzing the light intensity graph, and therefore the detection accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection method and device for detecting a camera module. Background technique [0002] With the development of technology and the development requirements of various fields, more and more fields need to use camera modules. [0003] The current detection method of the camera module is to judge whether the camera module is abnormal by using the Spatial Frequency Response (SFR) value. With the development of technology, the detected SFR value can also be converted into a heat map to more intuitively judge the optical performance of the general position of the camera module. However, the detected SFR value is detected through fixed-point detection in each field of view. These specified detection points are not comprehensive, which may easily lead to missed detection and make the detection accuracy not high. Contents of the invention [0004] In order to solve the above prob...

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Application Information

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IPC IPC(8): H04N17/00
CPCH04N17/002
Inventor 胡伟鹏
Owner O FILM IMAGE TECH (GUANGZHOU) CO LTD