手機屏幕玻璃表面缺陷視覺檢測技術解決方案
發布時間：
2023-02-10 11:30
手機已經成為人們生活中的必需品，手機屏幕質量的好壞直接影響其銷量，一款分辨率高、色彩呈現效果清晰、質量好的屏幕對消費者具有更高的吸引力，機器視覺檢測系統很好的解決了這一問題。視覺檢測系統能夠準確的判斷手機屏幕是否存在缺陷,以及對檢測到缺陷的分類和分級。
Mobile phone has become a necessity in people's life, the quality of mobile phone screen directly affects its sales. A high-resolution, clear color rendering effect and good quality screen has a higher appeal to consumers. Machine vision detection system solves this problem well. The visual inspection system can accurately judge whether there are defects on the mobile phone screen, and classify and grade the defects detected.
傳統的機器視覺檢測方法雖然能夠滿足實時性、高效性的需求,但是其特征提取能力有限,檢測效果也達不到手機屏幕質檢的合格標準。在此基礎之上，紅寶自動化有限公司通過優化的模板匹配方法檢測瑕疵,提升瑕疵的識別度,實現瑕疵的自動分類識別，結合深度卷積神經網絡精確、自動的特征提取能力,突出的特征抽象和表達能力,實現了手機屏幕瑕疵的高效、準確檢測,而且在檢測到瑕疵的同時,也完成了對瑕疵的分類工作,避免了單獨進行瑕疵分類的繁瑣過程。
Although the traditional machine vision detection method can meet the requirements of real-time and high efficiency, its feature extraction ability is limited, and the detection effect can not meet the qualified standard of mobile phone screen quality inspection. On this basis, Hongbao Automation Co., Ltd. detects defects through optimized template matching method, improves the recognition degree of defects, and realizes automatic classification and recognition of defects. Combined with the accurate and automatic feature extraction ability of deep convolution neural network, outstanding feature abstraction and expression ability, Hongbao Automation Co., Ltd. has realized the efficient and accurate detection of mobile phone screen defects, Also completed the classification of defects, to avoid the tedious process of separate classification of defects.
手機屏幕表面缺陷檢測系統光源選擇：
Selection of light source for surface defect detection system of mobile phone screen:
光源的選擇需要考慮手機屏幕以及圖像采集設備的匹配性和性價比。LED燈不管是壽命還是光源穩定性都具有很大的優勢，大功率LED陣列，亮度極高、線性分布，聚光行極強、超長使用壽命，大于6年等，所以本系統采用的是LED光源。
The selection of light source needs to consider the matching and cost performance of mobile phone screen and image acquisition equipment. LED lamp has great advantages in both life and light source stability. High power LED array, high brightness, linear distribution, strong focusing line, long service life, more than 6 years, etc., so this system uses LED light source.
手機屏幕表面缺陷檢測系統相機選擇：
Camera selection of mobile phone screen surface defect detection system:
手機屏幕玻璃表面的缺陷非常細微 ，普通的面陣相機分辨率難以達到檢測的精度要求，所以手機屏幕玻璃表面缺陷檢測系統選擇工業CCD相機。工業CCD相機黑白線陣相機，其主要性能參數如下圖所示。
The surface defects of mobile phone screen glass are very fine, and the resolution of ordinary area array camera is difficult to meet the requirements of detection accuracy, so the industrial CCD camera is selected as the mobile phone screen glass surface defect detection system. The main performance parameters of industrial CCD camera black and white linear array camera are shown in the figure below.
手機屏幕玻璃表面缺陷檢測系統軟件選擇：
Software selection of mobile phone screen glass surface defect detection system:
手機屏幕玻璃表面缺陷檢測系統軟件選擇MVT-SIS視覺檢測系統，MVT-SIS視覺檢測系統將采集到的圖像經過圖像算法進行分割處理，根據缺陷圖像和合格產品圖像之間的灰度值差異，從而準確的識別手機屏幕玻璃表面缺陷。MVT-SIS視覺檢測系統軟件功能及界面可根據用戶要求進行定制開發，提高了手機屏幕玻璃表面缺陷檢測系統的精度和智能化水平。
The software of mobile phone screen glass surface defect detection system selects mvt-sis visual inspection system. Mvt-sis visual inspection system will segment the collected image through image algorithm, and accurately identify the surface defect of mobile phone screen glass according to the difference of gray value between defect image and qualified product image. The software function and interface of mvt-sis visual inspection system can be customized and developed according to user requirements, which improves the accuracy and intelligent level of mobile phone screen glass surface defect detection system.
The visual inspection system will make a comprehensive consideration of various factors, such as mobile phone model, screen material, size and so on, to develop a solution to respond to the defect detection of mobile phone screen.
視覺檢測系統,表面缺陷視覺檢測,視覺缺陷檢測