Surface blot detecting system and detecting method thereof

Abstract

The invention discloses a surface stain detecting system which comprises at least one image acquiring device used for acquiring the image of surface information of an object to be tested; at least one light source device used for lighting the surface of the object to be tested; and a signal processing device electrically connected with the image acquiring device used for processing the image acquired by the image acquiring device so as to detect that whether the surface of the object to be tested conforms to a preset standard value, and marking the pixel of which the brightness value is more than the average value. With the coordination of the image acquiring device and the signal processing device, the surface stain detecting system can accurately judge the position where the stain exists, thus not only accelerating the detecting speed, but also avoiding the subjective factors existing in manual detecting and the omission factor thereof, thereby improving the detecting qualification rate. The invention also relates to a stain detecting method of the surface stain detecting system.

Description

technical field [0001] The invention relates to a surface stain detection technology, in particular to a surface stain detection system and a detection method thereof. Background technique [0002] With the continuous development of science and technology, portable electronic devices such as mobile phones are widely used and tend to be light, beautiful and multi-functional. The camera function is an additional function of the popular mobile phones in recent years. A digital camera module used in a mobile phone must not only meet the requirements of thinness, lightness and compactness, but also have high photographic performance. However, with the continuous improvement of the image quality requirements of digital cameras and mobile phone camera modules, the color filter is an important part of the camera module, and its quality detection will be related to the quality of the image. Therefore, it is necessary to detect the position and size of the flaws on it. Therefore, be...

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of assembling color filters, the stain detection of color filters is mainly through manual visual inspection, that is, the color filters with stains on the imaging surface are picked out one by one manually, the detection speed is very low, and There are relatively subjective factors in this detection method, and there will be a large missed detection rate in the manual detection method, which reduces the detection pass rate.

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