基于改进Itti显著模型的织物疵点实时检测  

Real-time detection of fabric defects based on use of improved Itti salient model

作　　者：闫本超 潘如如 周建 王蕾 王小虎 YAN Benchao;PAN Ruru;ZHOU Jian;WANG Lei;WANG Xiaohu(College of Textile Science and Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]江南大学纺织科学与工程学院,江苏无锡214122

出　　处：《纺织学报》2023年第7期95-102,共8页Journal of Textile Research

基　　金：国家自然科学基金项目(61976105);中国纺织工业联合会应用基础研究项目(J202006)。

摘　　要：为克服人工疵点检测存在精度差、效率低、易疲劳等问题,研发了基于改进Itti显著模型的织物疵点实时检测系统。首先设计了专用的织物传动和退绕系统,实现对布卷的精确传递,采用不同光源和多台工业相机拍摄实现织物的实时采集;然后通过基于改进的Itti显著性模型对图像进行快速检测,利用下采样构建图像金字塔,并对金字塔图像进行中央周边差操作,获得织物亮度特征;接着对各尺度金字塔图像进行不同方向Gabor滤波边缘检测获得织物方向特征,归一化亮度与方向特征获得织物疵点显著图;最后通过自定义阈值对显著图进行分割。实验结果表明:本文系统能有效检测出白坯布、牛仔布含有的油污、断经、破洞、纬缩等常见织物疵点,疵点检测正检率为93%,实时检测速度最高达48 m/min,能满足实时检测需求。Objective Conventional manual testing relies on the subjective experience and rating standards of inspectors to complete the appearance quality testing and evaluation of fabrics,which has problems such as backward productivity,poor detection accuracy,low efficiency and easy fatigue.Fabric defects automatic detection technology is one of the key links for textile enterprises to develop into intelligent manufacturing.Thus,this paper intends to develop a real-time detection system in order to achieve the automatic detection of fabric defects so as to overcome the disadvantages seen in manual detection.Method The system adopts the motor drive to realize the fabric winding and the automatic transfer of the roll.Unwinding and transmission can be stably,with high automation and accuracy.In order to meet the different lighting requirements,three rows of LED lights are installed,and they have more lighting modes than other systems.Eight industrial cameras are arranged side by side to realize the image acquisition of the fabric.The acquired images were rapidly detected by the image defects based on an improved Itti salient model fault detection algorithm.The model has shorter detection time for fabric image and has higher accuracy,which can meet the real-time detection requirements of fabric defects.Results The schematic diagram of the fabric image acquisition system is established(Fig.1).The fabric is rewound by the motor and can be stably transmitted to the image acquisition area in a specific route.In the image acquisition area,fabric images of different thickness fabrics with different light sources are obtained(Fig.3).It can be seen that the sharpness of the images taken by different light sources is different,which meets the detection requirements of different thickness fabrics.It also indicates that the installed camera has a high shooting definition.The images were detected based on the improved Itti salient model.Different directions can effectively extract the features of the fabric image and detect the edge info

关 键 词：疵点检测 实时检测 GABOR滤波 高斯金字塔 Itti显著性 

分 类 号：TS941.26[轻工技术与工程—服装设计与工程]