'Wise Eye' is a unique AI-based inspection system that satisfies the requirements of textile manufacturers

YarnsandFibers News Bureau 2018-10-31 11:23:00 – Hong Kong

Textile manufacturers at present depend on human efforts to randomly examine the fabric by naked eyes. Due to human factors such as carelessness or physical exhaustion, defect detection by human labour is usually uncertain and unreliable. Textile manufacturers also made an effort to use some other fabric inspection systems, but those systems were not able to meet the industry needs. Safeguarding quality in the fabric production becomes a great challenge to the industry.

The Hong Kong Polytechnic University (PolyU) recently developed an intelligent fabric defect detection system, called "WiseEye", which leverages advanced technologies including Artificial Intelligence (AI) and Deep Learning in the process of quality control (QC) in textile industry. The system effectively reduces the chance of producing substandard fabric by 90%, thus greatly decreasing loss and wastage in the production. It helps to save manpower as well as boost the automation management in the textile manufacturing.

Prof Calvin Wong said, " 'Wise Eye' is a unique AI-based inspection system that satisfies the requirements of textile manufacturers. It is an integrated system with a number of components that perform different functions in the inspection process. The system is embedded with a high-power LED light bar and a high-resolution charge-coupled device camera which is driven by an electronic motor and is mounted on a rail to capture images of the whole width of woven fabric during the weaving process. The captured images are pre-processed and fed into the AI-based machine vision algorithm to detect fabric defects. Real-time information gathered throughout the detection process will be sent to the computer system, and analytical statistics and alert can be generated and displayed as and when needed."

"WiseEye" is developed by the Textile and Apparel Artificial Intelligence (TAAI) Research Team, which is spearheaded by Prof Calvin Wong, Cheng Yik Hung Professor in Fashion of Institute of Textiles and Clothing, PolyU. He added that, "In view of the numerous fabric structures that give great variations in fabric texture and defect types, automatic fabric defect detection has been a challenging and unaccomplished mission in the past two decades. Our innovative introduction of AI, Big Data and Deep Learning technologies into 'WiseEye' not only is a technological breakthrough that meets the industry needs; but also marks a significant milestone in the quality control automation for the traditional textile industry.”

Prof Wong and the TAAI research team have been conducting fundamental and applied research on AI, computer vision and machine learning, specifically for the fashion and textile industry since 2012. The team has earlier introduced the first-of-its-kind "FashionAI Dataset" which integrates fashion and machine learning for systematic analysis of fashion images through the use of AI. The Dataset helps advance the fashion industry and develop a new mode for fashion retail.

The research team has applied Big Data and Deep Learning technologies in "WiseEye" and by inputting data of thousands yards of fabrics into the system, the team has trained "WiseEye" to detect about 40 common fabric defects with exceptionally high accuracy resolution of up to 0.1 mm/pixel.

Intelligent textile material and apparel quality inspection, large-scale fabric swatch and fashion image searching and fashion sales forecasting are the areas covered by their other projects. The team has also merged with various local and international companies in a number of research projects and published research articles in world-leading journals, including IEEE Transactions on Neural Networks and Learning Systems, IEEE Transactions on Cybernetics, and IEEE Transactions on Image Processing. Some of the articles are ranked by Essential Science Indicators as the top 1% of the most cited articles in related field.

At the moment, "WiseEye" can be applied to most types of fabrics with different weaving structures and solid colours. The research team plans to further train and extend the system to detect defects in fabrics with more challenging patterns, such as complicated strip and check patterns. The ultimate target is to cover all common kinds of fabric in five years' time.

Supported by AI-based machine-vision technology, the novel "WiseEye" can be installed in a weaving machine to help fabric manufacturers to detect defects instantly in the production process. Through the automatic inspection system, the production line manager can easily detect the defects, thus helping them to identify the cause of the problems and fix them immediately. "WiseEye" has been put on trial for over six months in a real-life manufacturing environment. Results show that the system is able to reduce 90% of the loss and wastage in fabric manufacturing process when compared with traditional human visual inspection. That means the system helps cut down production cost while enhancing production efficiency at the same time.

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