基于自适应正交小波的机织物密度自动检测的研究

为了将计算机视觉应用于织物经纬密自动检测，提出了建立机织物自适应小波分解滤波器并研究了织物密度自动检测的方法。应用织物自适应滤波器对织物灰度图像进行小波分解，就可使分解后的子图像能很好地分别包含织物的纬向和经向纹理信息，从而可将织物子图像二值化后，根据其黑白交替变化规律，计算出织物的经纬纱密度。实验结果证明自动检测和人工测量相比，误差在3％以内。     

基于计算机视觉的织物疵点检测的近期进展

按照模式识别的一般顺序并根据当前的研究中所使用的方法，简要综述了近年来计算机视觉在织物疵点检测领域的应用和发展情况。首先分析了将计算机视觉应用于织物疵点检测的现实意义。考虑到特征提取与选择模块以及检测模块是瑕疵检测系统中最关键的两个部分，着重讨论了这两个模块近期所涉及的各种方法及其在疵点检测应用上的效果。最后给出了结论，说明了开发国产化自动验布机的意义。     

Functionalization of Nylon Fabrics with Dopamine Deposition and TiO_2 Nanoparticles Immobilization

Ultraviolet(UV)radiation can cause degradation or aging of many polymers and shorten the working-life of their products.Thus,UV protective covers are required in various occasions.Textiles with the UV-shielding function possess unique properties compared with those covers in board or film shapes.TiO_2 nanoparticles(NPs),which were reported to have superior UV blocking function,can be used to produce UV protective covers in combination with fabric.However,efficient and environmentally friendly immobilization of TiO_2 Nps onto the fabrics is challenging.Polydopamine(PDA),a biomimetic synthetic polymer,has attracted great attentions recently due to its superior affinity to various materials and facile application procedure.Hence,in this research,the surface of nylon fabrics was modified by PDA to immobilizeTiO_2 NPs.Themodificationconditionswere systematically optimized.The immobilization of the NPs was confirmed by Fourier transform infrared spectrometer(FTIR)and scanning electron microscope(SEM).The functionalized nylon fabrics were proved to exhibit improved UV protection properties even after washing.This work provides a new and versatile surface modification technique for textiles.     

Effect of Run - in Ratios on the Mechanical Properties of Two - Guide Bars Warp - Knitted Fabrics

Warp knitting technology gets rapid development at present and becomes one of the most important parts of the textiles.But it is less known how the parameters of warp knitting technology affect the mechanical properties of warp-knitted fabrics.This paper presents discuss a research on the relationships between run-in ratio and mechanical properties of the two-bar warp-knittedfabrics through the measurement and analysis of the mechanical properties of various samples with different run-in ratios.The optimal run一in ratios for the reasonable mechanical properties are obtained from above dis-     

Principle and Method for Structural Design of Digital Woven Fabric

IntroductionThe structural design of woven fabric is realized byinterlacement .In woven fabric ,the warp and weft threadsinterweave with each other . This rule of interlacement iscalled weave[1]. The fabric s appearance and mechanicalproperty change along with the fabric construction ofweaves . Any weave is composed by warp and weftinterlacing points alternately . The number of threadsrequired whenever the arrangement of the warp and weftinterlacing points repeats for one ti me is called a we…     

机器视觉技术的农业应用研究进展

 机器视觉技术已广泛应用到农业生产的诸多领域。综合国内外优秀研究成果,阐述了现阶段机器视觉在农业方面应用的主要形式,介绍了机器视觉在农作物精选与质量检测、植物生长信息监测、农田视觉导航等应用方向的研究成果,通过分析其创新性的图像处理算法、机器视觉系统的组成,提出了当前机器视觉农业应用仍存在可靠性差、成本高、智能化水平不高等问题。结合当前机器视觉在各种领域的研究和应用情况,对未来机器视觉在农业应用的发展方向进行展望,认为基于嵌入式处理模块和多技术融合的机器视觉系统将成为未来主要发展趋势,以卷积神经网络为代表的深度学习模型也将成为未来图像识别的核心技术,并将极大改善目前机器视觉在农业应用存在的诸多问题。     

织物手感客观评定方法的研究

设计了一套操作简单、经济、可靠的织物风格测试装置.该装置通过测量从一个圆柱形孔中抽取织物所需的抽取力来客观评定织物的手感,测得的抽取力与FAST仪的测试结果存在显著的相关性,能综合反映织物的单位重量、表观厚度、弯曲刚度、剪切刚度等物理性能.使用该装置能客观评定织物的厚重或轻盈、蓬松或坚实、柔软或刚硬等感观手感性能.     

计算机测配色技术在纺织品图案设计中的应用研究

在分析纺织品图案与色彩构成的基础上,通过研究色彩的空间混合原理,提出了利用计算机编程技术处理纺织品图案设计中织物经纬纱线的配色问题.利用计算机测色技术建立纱线颜色库,再利用配色程序计算出经纬色纱交织后所形成的织物色彩,从而模拟纱线混色后织物的效果,达到快速配色的目的,这样就极大地简化了色织物中经纬纱线的配色问题,提高了纺织产品开发的效率和劳动生产率,能更好更快地满足客户和市场需要.     

Finishing Effect on Warmth Property of Cotton/Kapok Blended Knitted Fabric

Nowadays,more and more natural or functional fibers are being investigated due to their utilization in thermal underwear.Kapok fiber is one of the natural cellulosic fibers whose source is the kapok plant. It has hollow body and sealed tail,which exhibits desirable features required for functional textiles of this nature. In this study,cotton / kapok( 80 /20 by mass) blended yarn with two types of yarn size 18. 5 and 14. 8 tex,respectively are knitted into plain stitches. The fabrics are undergone with an optimal preparation plan according to orthogonal design. Then,after dyeing and softening,fabric properties including thermal and water-vapour resistances, wicking property, pilling behaviour, and surface morphology,are tested and scrutinized for their candidacy for thermal underwear. The results showed that cotton / kapok blended fabrics have good thermal resistance which is significantly higher than those of cotton / modal blended fabrics,and the same water vapour resistance compared with cotton / modal blended fabrics which are normally used as underwear. Cotton / modal blended knitted fabrics has better pilling grade than cotton / kapok blended fabrics. Meanwhile, the cotton / kapok blends fabrics have good wicking property. Collectively,it was concluded that cotton / kapok blended fabric was appropriate for thermal underwear. However,the main limitation of these fabrics is their pilling properties.     

针织物外观平整度的小波分析与等级评定

引入二维小波分析方法,分析针织物的外观平整度,提取了较为精细的针织物图像信息.图像首先经过中值滤波,再利用小波变换分解并从中提取高频信息,然后结合4种表征织物折皱的特征参数,计算不同平整度等级模板的特征值.并以此为依据,运用最小距离判别法,确定16种不同针织物类型的平整度等级.为了定量描述评定结果,通过计算客观评定与主观评定结果的相关系数,验证该方法的可行性.     

实时织物悬垂性能物理模型及应用

快速计算机模拟和仿真技术是纺织物、服装的计算机辅助设计和制造的关键技术组成．逼真的纺织物、布料、服装的三维计算机可视化设计在其他许多领域也非常重要．例如在3DCG电影制作中逼真的计算机服装动态特效、3D电脑游戏、网上购物等．本文着重于计算方法，综述和分析了服装物理模型及其应用的最新进展，探讨了当前主要存在的问题，技术挑战，和可能的解决方案．提出了一种基于变形能的服装悬垂模型及算法，并展示了仿真结果．本文所提出的模型适用于纺织物、服装的快速计算机三维动态模拟．另外，也提出和探讨了识别纺织物材料的复杂动态变形材料性能参数的可能性方案．     

Investigation on the Consumption Values of Hong Kong People on Tie Products

Introduction Overtheyears,comparingwithanyotheraccessoinmale swardrobe,necktieisregardedasthestron indicationtoaman spersonalityandthesoulforthem fashion.Inretailbusiness,certainly,accessoriesoffe greatopportunityforadd onsales.Asthefirstkncravat(referredtotodayasthenecktie)evolved,itt onnumerousshapes,fabricdesigns,specialeffects colours.Yet,thenecktieremainsanessentialparto man swardrobebecauseitunitesalltheelementsofam outfit,giveshiminstantrespectabilityand,aboveall, theultimatesymbolofi…     

排水管道检测与缺陷识别技术综述

随着排水管道使用年限的增长及输水能力要求的提高,对排水管道进行状态评估已成为必须要做的工作,但管道状态评估很大程度上依靠管道的检测结果,为全面了解排水管道的检测方法,本文对目前用于排水管道检测的主要方法做了综述,分析了各检测方法的原理和特点,并介绍了基于计算机视觉和图像处理的自动化缺陷检测技术,对排水管道检测技术的发展前景进行了展望,认为闭路电视检测方法结合深度学习缺陷识别技术,可以实现排水管道检测领域的自动化和高效率,具有较好的应用前景。     

单向导湿纤维及织物的研究进展

单向导湿织物是一种可实现液态水单向传导的功能性纤维集合体,用于具有人体热湿舒适性服装的设计与开发。从织物的单向导湿原理、单向导湿织物的纤维选择和制备方法3个方面详细阐述了单向导湿织物的研究进展,总结了单向导湿织物的主要制备方法,包括结构设计、化学整理、等离子处理、静电纺丝技术和光催化处理,对这5种制备方法的优缺点进行了评述。根据传统单向导湿织物在研究中存在的问题,提出应结合后处理整理技术并加入具有特殊用途的涂层添加剂,开发出多功能的单向导湿织物,进一步拓宽其应用领域。     

电晕处理对纯棉牛仔布性能的研究

采用电晕技术对纯棉牛仔布进行处理,讨论电晕处理工艺(时间、电压)对牛仔布性能的影响。对电晕处理后的纯棉牛仔布的颜色变化,拉伸性能、润湿性能等进行测试,结果表明:电晕处理后的牛仔布吸湿性显著增加,拉伸强力略有降低,布面颜色深度降低。     

轻薄府绸织物斜向强伸性能与接缝强力的关系

研究了轻薄织物各向异性与接缝强力的关系，轻薄织物斜向强伸性对接缝强力有明显影响，织物斜向接缝强力主要与织物断裂伸长率有显著相关性，相关系数为0．7389。     

Recent Progress for Gallium-Based Liquid Metal in Smart Wearable Textiles

The development of smart textiles has presentend new requirements for integrated devices that can be compatible with both conductivity and deformation. At room temperature, liquid metal presents both metallic properties and flexible properties, as well as low toxicity and biocompatible, which makes it more and more popular on the research of liquid metal based electronic devices. This review summarizes the basic physical properties, and the key points to be fabricated into fibers and fabrics including oxides and wettability. Meantime, the application in the field of textiles is presented. Liquid metal based electrical conductive fibers and flexible sensors can be fabricated mainly by injection and printing, as well as direct-writing for smart fabrics. Liquid metal can be integrated as functional components for smart wearable devices in the future by assembling the as-prepared fibers and fabrics with textile technology, such as twisting, sewing, knitting, and embroidering.     

基于图像分析的3A控制算法综述

3A控制是摄像器材中的三项自动控制功能.随着计算机处理能力的提升和计算机视觉技术的发展,基于图像分析的3A控制方法越来越多地应用于摄像器材中.详细介绍基于图像分析的3A控制的各种方法,分析各种方法的特点,并对未来的研究提出一些建议.     

OWL程序设计与多梳栉经编织物花型计算机辅助设计

为了适应多梳栉拉舌尔经编机向现代高速、工艺先进和计算机控制的方向发展,满足市场对经编产品小批量、多品种的要求,国内外在多梳栉经编织物计算机辅助设计方面都做了大量的工作,而国内的设计研究尚显不足.从多梳栉经编织物计算机辅助花型设计的特殊性出发,选用了一种面向对象程序设计——OWL程序设计,将二者有机地结合起来所做的研究工作.     

图像处理用于织物疵点自动检测的研究进展

织物疵点自动检测、代替传统的人工检测方法是纺织品质量控制和管理的重要环节，同时又是纺织自动化的重要标志之一，基于图像处理的织物疵点检测，主要是通过图像分析，从图像中发现与正常纹理不同的部分，这方面的研究一直在持续，新的方法不断出现，但较为成熟的检测系统较少，开发适合我国纺织业的织物疵点自动检测系统，具有深远意义。