针对RGB-D(Red Green Blue Depth)语义分割中色彩信息和深度信息无法有效融合以及无法充分提取多尺度上下文信息的问题,文中提出了一种基于双流聚合Transformer的RGB-D语义分割方法。通过Transformer提取全彩图像和深度图像的多层次特征...针对RGB-D(Red Green Blue Depth)语义分割中色彩信息和深度信息无法有效融合以及无法充分提取多尺度上下文信息的问题,文中提出了一种基于双流聚合Transformer的RGB-D语义分割方法。通过Transformer提取全彩图像和深度图像的多层次特征,采用通道注意交叉融合模块与深度增强RGB操作实现各层次特征模态鸿沟的补偿,完成双模态信息融合。使用多层聚合解码器模块整合多层次多尺度上下文特征,减少了信息传递损失,实现了更准确和更全面的语义分割。实验结果表明,所提方法在NYU-Dv2数据集上的平均交并比(mean Intersection over Union,mIoU)、像素准确率和平均像素准确率分别达到52.9%、78.0%、66.0%。在Cityscapes数据集上的实验结果表明,在低分辨率输入图像下,所提方法的mIoU达到了79.8%。展开更多
Theill-posed character of haze or fogmakes it difficult to remove froma single image.While most existing methods rely on a transmission map refined through depth estimation and assume a constant scattering coefficient...Theill-posed character of haze or fogmakes it difficult to remove froma single image.While most existing methods rely on a transmission map refined through depth estimation and assume a constant scattering coefficient,this assumption limits their effectiveness.In this paper,we propose an enhanced transmission map that incorporates spatially varying scattering information inherent in hazy images.To improve linearity,the model utilizes the ratio of the difference between intensity and saturation to their sum.Our approach also addresses critical issues such as edge preservation and color fidelity.In terms of qualitative as well as quantitative analysis,experimental outcomes show that the suggested framework is more effective than the currently used haze removal techniques.展开更多
以天然染料银杏叶为原料,采用微波法、水浴法、超声波提取法进行染料原液的提取,并对这3种方法提取的原液进行吸光度测定,以提取后的原液作为染料原液对25 tex大麻/桑皮/羊毛60/20/20混纺纱进行染色,采用p H值、染色温度、媒染剂用量、...以天然染料银杏叶为原料,采用微波法、水浴法、超声波提取法进行染料原液的提取,并对这3种方法提取的原液进行吸光度测定,以提取后的原液作为染料原液对25 tex大麻/桑皮/羊毛60/20/20混纺纱进行染色,采用p H值、染色温度、媒染剂用量、渗透剂用量4个因素进行分析染色效果,以单因素实验作为基础,进行4因素3水平的正交试验,将正交试验后的染色纱样进行色牢度的测定。研究结果表明:微波法提取的色素吸光度值最高,染色最佳工艺条件为:渗透剂用量1.5 m L,媒染剂用量15 m L,染色p H值10,染色温度60℃。大麻/桑皮/羊毛混纺纱染色后的变色牢度和沾色牢度均达到3级以上。展开更多
以天然染料银杏叶为原料,采用微波提取法进行染料原液的提取,并以提取后的原液作为染料原液对28 tex亚麻纱进行染色,采用p H、染色温度、媒染剂用量、渗透剂用量4个因素分析染色效果,以单因素分析结果作为基础,进行4因素3水平的正交试验...以天然染料银杏叶为原料,采用微波提取法进行染料原液的提取,并以提取后的原液作为染料原液对28 tex亚麻纱进行染色,采用p H、染色温度、媒染剂用量、渗透剂用量4个因素分析染色效果,以单因素分析结果作为基础,进行4因素3水平的正交试验,将正交试验后的染色纱样进行色牢度测定。研究结果表明,染色最佳工艺条件为:渗透剂用量1.5 m L,媒染剂用量5 m L,染色p H 7,染色温度80℃,亚麻纱染色后的色牢度达到3级以上。展开更多
文摘针对RGB-D(Red Green Blue Depth)语义分割中色彩信息和深度信息无法有效融合以及无法充分提取多尺度上下文信息的问题,文中提出了一种基于双流聚合Transformer的RGB-D语义分割方法。通过Transformer提取全彩图像和深度图像的多层次特征,采用通道注意交叉融合模块与深度增强RGB操作实现各层次特征模态鸿沟的补偿,完成双模态信息融合。使用多层聚合解码器模块整合多层次多尺度上下文特征,减少了信息传递损失,实现了更准确和更全面的语义分割。实验结果表明,所提方法在NYU-Dv2数据集上的平均交并比(mean Intersection over Union,mIoU)、像素准确率和平均像素准确率分别达到52.9%、78.0%、66.0%。在Cityscapes数据集上的实验结果表明,在低分辨率输入图像下,所提方法的mIoU达到了79.8%。
基金The Deanship of Research and Graduate Studies at King Khalid University funded this work through a Large Research Project under grant number RGP2/274/46.
文摘Theill-posed character of haze or fogmakes it difficult to remove froma single image.While most existing methods rely on a transmission map refined through depth estimation and assume a constant scattering coefficient,this assumption limits their effectiveness.In this paper,we propose an enhanced transmission map that incorporates spatially varying scattering information inherent in hazy images.To improve linearity,the model utilizes the ratio of the difference between intensity and saturation to their sum.Our approach also addresses critical issues such as edge preservation and color fidelity.In terms of qualitative as well as quantitative analysis,experimental outcomes show that the suggested framework is more effective than the currently used haze removal techniques.
文摘以天然染料银杏叶为原料,采用微波法、水浴法、超声波提取法进行染料原液的提取,并对这3种方法提取的原液进行吸光度测定,以提取后的原液作为染料原液对25 tex大麻/桑皮/羊毛60/20/20混纺纱进行染色,采用p H值、染色温度、媒染剂用量、渗透剂用量4个因素进行分析染色效果,以单因素实验作为基础,进行4因素3水平的正交试验,将正交试验后的染色纱样进行色牢度的测定。研究结果表明:微波法提取的色素吸光度值最高,染色最佳工艺条件为:渗透剂用量1.5 m L,媒染剂用量15 m L,染色p H值10,染色温度60℃。大麻/桑皮/羊毛混纺纱染色后的变色牢度和沾色牢度均达到3级以上。
文摘以天然染料银杏叶为原料,采用微波提取法进行染料原液的提取,并以提取后的原液作为染料原液对28 tex亚麻纱进行染色,采用p H、染色温度、媒染剂用量、渗透剂用量4个因素分析染色效果,以单因素分析结果作为基础,进行4因素3水平的正交试验,将正交试验后的染色纱样进行色牢度测定。研究结果表明,染色最佳工艺条件为:渗透剂用量1.5 m L,媒染剂用量5 m L,染色p H 7,染色温度80℃,亚麻纱染色后的色牢度达到3级以上。
