触摸屏玻璃表面缺陷光学检测平台的研制

IF 6.7 3区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Optomechatronics Pub Date : 2016-03-17 DOI:10.1080/15599612.2016.1166304

Ming Chang, B. Chen, J. Gabayno, Ming-Fu Chen

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引用次数: 29

摘要

开发了一种结合并行图像处理和高分辨率光机械模块的触摸屏玻璃缺陷检测平台。使用12288像素线CCD相机获取暗场图像，分辨率为3.5µm /像素，线率为12 kHz。通过CPU和GPU联合平台的并行图像处理，分析了玻璃表面的关键特征。对每个样品提供3.86亿像素图像数据的触摸屏玻璃的缺陷检查大约在5秒内完成。通过检测，实现了触摸屏玻璃表面划痕的高检出率，最小缺陷尺寸约为10µm。自定义光源的实现显著提高了表面的散射效率，从而提高了采集图像的对比度和检测系统的整体性能。

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Development of an optical inspection platform for surface defect detection in touch panel glass

ABSTRACT An optical inspection platform combining parallel image processing with high resolution opto-mechanical module was developed for defect inspection of touch panel glass. Dark field images were acquired using a 12288-pixel line CCD camera with 3.5 µm per pixel resolution and 12 kHz line rate. Key features of the glass surface were analyzed by parallel image processing on combined CPU and GPU platforms. Defect inspection of touch panel glass, which provided 386 megapixel image data per sample, was completed in roughly 5 seconds. High detection rate of surface scratches on the touch panel glass was realized with minimum defects size of about 10 µm after inspection. The implementation of a custom illumination source significantly improved the scattering efficiency on the surface, therefore enhancing the contrast in the acquired images and overall performance of the inspection system.

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来源期刊

International Journal of Optomechatronics 工程技术-工程：电子与电气

CiteScore

9.30

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： International Journal of Optomechatronics publishes the latest results of multidisciplinary research at the crossroads between optics, mechanics, fluidics and electronics. Topics you can submit include, but are not limited to: -Adaptive optics- Optomechanics- Machine vision, tracking and control- Image-based micro-/nano- manipulation- Control engineering for optomechatronics- Optical metrology- Optical sensors and light-based actuators- Optomechatronics for astronomy and space applications- Optical-based inspection and fault diagnosis- Micro-/nano- optomechanical systems (MOEMS)- Optofluidics- Optical assembly and packaging- Optical and vision-based manufacturing, processes, monitoring, and control- Optomechatronics systems in bio- and medical technologies (such as optical coherence tomography (OCT) systems or endoscopes and optical based medical instruments)