کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5205709 1502937 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aesthetic defect characterization of a polymeric polarizer via structured light illumination
ترجمه فارسی عنوان
مشخصه نقص زیبایی یک قطبش پلیمری با استفاده از نور ساختاری نور
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
The aesthetic defects of polymeric polarizers have a serious impact on the quality of thin film transistor liquid crystal display (TFT-LCD) panels. However, some of these slight and transparent defects can barely be imaged and characterized using conventional illumination. To inspect these special defects, a new and automated inspection method is proposed that employs structured-light illumination. A machine vision system that uses a LCD monitor to produce a binary stripe pattern was designed to enhance the imaging defects. Thus, subsequent image processing is straightforward and simple because of this enhancement. One hundred and fifty defect samples were successfully imaged and then processed and characterized by the Robust Principal Component Analysis (RPCA) algorithm. The total inspection accuracy was up to 99%. The experiments demonstrate that the width of the luminous stripe should be optimized at 2 to 3 times the size of the defect. The mechanism of the imaging enhancement is preliminarily discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 53, August 2016, Pages 51-57
نویسندگان
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