Jul 30, 2020 · The Optical Character Recognition (OCR), together with another inspection techniques, is the mostly method utilized in the PCB industry. This work have as objective to identify text...

Keywords: PCB inspection, optical character recognition (OCR), deep learning, coreset. 1. Introduction. The traditional method of classifying printed characters on components attached to a printed circuit board (PCB) in the past is using machine learning method such …

Optical images of printed circuit boards as well as detailed annotations of any text, logos, and surface-mount devices (SMDs).

To successfully decode characters on electronic components and modules, an optical character recognition (OCR) system needs to tolerate reflective surfaces as well as deformed, skewed, and poorly etched characters. With Cognex AI-powered technology, it is easy to read deformed characters, despite image formation challenges.

Read curved strings, low contrast characters, and deformed, skewed, and poorly etched codes on IC boards with Cognex Deep Learning.

Finally, our results show that applying Bayesian linear and quadratic discriminants to the principal component features can improve optical character recognition (OCR) detectability of damaged characters from actual 95 -- 97% to 99.88% in early tests.

VisionGauge® OnLine Optical Character Recognition Systems (OCR Systems) are able to reliably, automatically locate and read serial numbers on chips, PCB boards, or any other device that your application requires.

印刷电路板 (PCB)是电子产品中的核心器件，对于板件质量的测试与监控是生产中必不可少的环节。 在一些场景中，通过PCB中信号灯颜色和文字组合可以定位PCB局部模块质量问题，pcb文字识别中存在一些如下难点： 针对本场景，PaddleOCR基于全新的PP-OCRv3通过合成数据、微调以及其他场景适配方法完成小字符文本识别任务，满足企业上线要求。 pcb检测、识别效果如 图1 所示： 图1 pcb检测识别效果. 图2 数据集示例暂时不开源生成的pcb数据集，但是通过更换背 …

algorithms. These algorithms, such as OCR algoritms, are responsible to detect defects during the bare PCBs assembling process, making the production more reliable and free of reworks or...

Apr 21, 2021 · As the size of components mounted on printed circuit boards (PCBs) decreases, defect detection becomes more important. The first step in an inspection involves recognizing and inspecting characters printed on parts attached to the PCB.