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学者姓名:孙光民
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摘要 :
In medical diagnostics, the invention of the computer-aided identification method has played a significant role in making essential decisions for human diseases. Lung cancer requires a greater focus among various diagnostic processes because both men and women are affected, contributing to high mortality rates. In addition, lung cancer is one of the leading causes of death worldwide. It can be treated if diagnosed at an early stage. Detecting and classifying lung lesions is challenging for radiologists. Radiologists typically use computer-aided diagnostic systems to screen for lung cancer. In recent years, computer specialists have proposed many techniques for diagnosing lung cancer. Conventional lung cancer prediction methods have failed to maintain the precision needed because the low-quality picture affects the segmentation process. Here, we propose a well-performing method to detect and classify lung cancer. We applied the Grey Wolf Optimization algorithm with a weighted filter to reduce noise in images, followed by segmentation using watershed transformation and dilation operations. In the end, we classified lung cancer among three classes using our method that showed high performance compared to previous studies: 98.33% accuracy, 100% sensitivity, and 93.33% specificity.
关键词 :
Grey Wolf Optimization (GWO) Grey Wolf Optimization (GWO) Classification Classification Computer-Aided Diagnostic System (CAD) System Computer-Aided Diagnostic System (CAD) System Convolutional Neural Network (CNN) Convolutional Neural Network (CNN) Computed Tomography (CT) Computed Tomography (CT)
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GB/T 7714 | Bilal, Anas , Sun, Guangmin , Li, Yu et al. Lung nodules detection using grey wolf optimization by weighted filters and classification using CNN [J]. | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS , 2022 , 45 (2) : 175-186 . |
MLA | Bilal, Anas et al. "Lung nodules detection using grey wolf optimization by weighted filters and classification using CNN" . | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 45 . 2 (2022) : 175-186 . |
APA | Bilal, Anas , Sun, Guangmin , Li, Yu , Mazhar, Sarah , Latif, Jahanzaib . Lung nodules detection using grey wolf optimization by weighted filters and classification using CNN . | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS , 2022 , 45 (2) , 175-186 . |
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摘要 :
深部探测工程光学钻孔成像系统涉及地质勘测及光学钻孔成像领域。整体可分为地上系统和地下系统两部分。地上系统是可视化上位机界面;地下系统包括图像采集模块、钻孔内壁图像变换模块、图像融合拼接模块、图像压缩模块,图像采集模块用于俯视拍摄地下钻孔图像;图像变换模块用于将钻孔内壁俯视图片中的中心黑洞区域去除并将剩余的有效区域进行透射变换展开并矫正;图像融合拼接模块用于将矫正后的内壁正视图像拼接为一幅完整的钻孔内壁平面图像;图像压缩模块是将成品图进行压缩处理,方便上传至上位机。地上系统与地下系统通过tcp/ip通信模块进行信息交互。本发明能有效地在井下钻孔图像上传时节约带宽,增加了钻孔内壁图像的有效信息量。
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GB/T 7714 | 孙光民 , 刘凡 . 深部探测工程光学钻孔成像系统 : CN202210334680.5[P]. | 2022-03-30 . |
MLA | 孙光民 et al. "深部探测工程光学钻孔成像系统" : CN202210334680.5. | 2022-03-30 . |
APA | 孙光民 , 刘凡 . 深部探测工程光学钻孔成像系统 : CN202210334680.5. | 2022-03-30 . |
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摘要 :
本公开实施例涉及一种基于自监督学习的OCTA图像分类结构训练方法,包括:基于无标签信息的B‑scan OCTA图像序列对模型进行自监督学习,直至重建的B‑scan OCTA图像序列与给定的B‑scan OCTA图像序列之间的重构误差、重建OCTA特征图像与融合OCTA特征图像的重构误差满足预设条件;将给定的带标签信息的en‑face OCTA图像对自监督学习后的模型中的二维随机掩码特征编码模块、全连接层、softmax层进行微调式训练,获得用于对任一用户的OCTA图像进行分类的二维随机掩码特征编码模块,该二维随机掩码特征编码模块作为OCTA图像分类结构。本发明对基于人体视网膜en‑face OCTA图像的疾病分析提供依据,使分类结果更准确,分类准确率更高。
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GB/T 7714 | 孙光民 , 汤长新 , 李煜 et al. 基于自监督学习的OCTA图像分类结构训练方法 : CN202210887658.3[P]. | 2022-07-26 . |
MLA | 孙光民 et al. "基于自监督学习的OCTA图像分类结构训练方法" : CN202210887658.3. | 2022-07-26 . |
APA | 孙光民 , 汤长新 , 李煜 , 张忠祥 . 基于自监督学习的OCTA图像分类结构训练方法 : CN202210887658.3. | 2022-07-26 . |
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摘要 :
一种基于基尔霍夫圆和透射变换算法的钻孔内壁图像展开与矫正方法,属于井下管道勘测技术领域。针对现有井下电视系统中上传图像时对于通信带宽的浪费,本发明提出了一种对井下钻孔中采集的图像进行有效信息区域的提取并还原钻孔内壁的方法。首先,通过基尔霍夫圆算法检测出钻孔内部俯视图像中无效信息黑洞区域,确定界限后将其去除;其次,运用极坐标的数学方法将有效区域图像进行圆环界限划定并展开为梯形;最后运用透射变换算法将展开的梯形图像进行四角拉伸还原钻孔内壁正视图。相对于现有钻孔光学成像系统,本发明能够有效地在井下钻孔图像上传时节约带宽,提高了采集效率,具有实际应用价值。
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GB/T 7714 | 孙光民 , 刘凡 . 一种基于霍夫圆检测与透射变换算法的钻孔内壁图像展开与矫正方法 : CN202210368222.3[P]. | 2022-03-30 . |
MLA | 孙光民 et al. "一种基于霍夫圆检测与透射变换算法的钻孔内壁图像展开与矫正方法" : CN202210368222.3. | 2022-03-30 . |
APA | 孙光民 , 刘凡 . 一种基于霍夫圆检测与透射变换算法的钻孔内壁图像展开与矫正方法 : CN202210368222.3. | 2022-03-30 . |
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摘要 :
基于SM9算法的移动互联网身份认证方案研究
关键词 :
单服务器环境 单服务器环境 移动互联网 移动互联网 身份认证 身份认证 SM9算法 SM9算法
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GB/T 7714 | 张昱 , 孙光民 , 李煜 et al. 基于SM9算法的移动互联网身份认证方案研究 [J]. | 张昱 , 2021 , (4) : 1-9 . |
MLA | 张昱 et al. "基于SM9算法的移动互联网身份认证方案研究" . | 张昱 4 (2021) : 1-9 . |
APA | 张昱 , 孙光民 , 李煜 , 信息网络安全 . 基于SM9算法的移动互联网身份认证方案研究 . | 张昱 , 2021 , (4) , 1-9 . |
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摘要 :
为了便于对建筑外墙瓷砖松动和开裂现象进行定期排查以保证周围居民的人身安全,本文提出了一种通过高分辨率相机拍摄的楼面图像进行微小缺陷自动检测的方法。首先,将原始检测任务划分为大尺度下的非墙体分割任务以及小尺度下的缺陷检测任务;其次,分别针对这些任务训练相应的深度模型并应用其进行处理;最后,将这些多尺度任务的处理结果进行融合,得到微小缺陷的最终检测结果。实验表明本文算法在精度和效率上都要明显优于单尺度方法。本文算法已在某小区实际部署运行并取得了良好的效果,具有很高的实用价值。
关键词 :
墙面 墙面 多尺度 多尺度 卷积神经网络 卷积神经网络 缺陷 缺陷 负反馈技术 负反馈技术 高分辨率检测器 高分辨率检测器 目标检测 目标检测 滑窗 滑窗
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GB/T 7714 | 孙光民 , 陈佳阳 , 李冰 et al. 双尺度网络高分辨率楼面影像微小缺陷检测 [J]. | 哈尔滨工程大学学报 , 2021 , (02) : 1-8 . |
MLA | 孙光民 et al. "双尺度网络高分辨率楼面影像微小缺陷检测" . | 哈尔滨工程大学学报 02 (2021) : 1-8 . |
APA | 孙光民 , 陈佳阳 , 李冰 , 李煜 , 闫冬 . 双尺度网络高分辨率楼面影像微小缺陷检测 . | 哈尔滨工程大学学报 , 2021 , (02) , 1-8 . |
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摘要 :
移动互联网单服务器环境下传统身份认证方案存在用户需要针对不同的服务器记忆相应的不同口令,以及传统认证方式中的口令泄漏等安全问题。为解决以上问题,文章提出一种移动互联网单服务器环境下基于SM9算法的身份认证方案。用户针对不同的应用系统,仅需记忆统一的标识和口令,即可在不同的应用系统中通过身份认证,从而获得应用服务和访问资源的权限。文章方案将SM9标识密码算法与口令隐藏相结合,采用一次一密的方式实现密文传输、双向认证,达到了更高的安全性和健壮性,并能减轻用户的记忆负担,给用户带来更好的应用体验。通过安全性分析,文章方案能抵抗重放攻击、仿冒攻击、智能设备丢失攻击等常见攻击。通过性能对比,文章方案比同...
关键词 :
SM9算法 SM9算法 单服务器环境 单服务器环境 身份认证 身份认证 移动互联网 移动互联网
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GB/T 7714 | 张昱 , 孙光民 , 李煜 . 基于SM9算法的移动互联网身份认证方案研究 [J]. | 信息网络安全 , 2021 , 21 (04) : 1-9 . |
MLA | 张昱 et al. "基于SM9算法的移动互联网身份认证方案研究" . | 信息网络安全 21 . 04 (2021) : 1-9 . |
APA | 张昱 , 孙光民 , 李煜 . 基于SM9算法的移动互联网身份认证方案研究 . | 信息网络安全 , 2021 , 21 (04) , 1-9 . |
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摘要 :
双尺度网络高分辨率楼面影像微小缺陷检测
关键词 :
卷积神经网络 卷积神经网络 墙面 墙面 多尺度 多尺度 滑窗 滑窗 目标检测 目标检测 缺陷 缺陷 负反馈技术 负反馈技术 高分辨率检测器 高分辨率检测器
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GB/T 7714 | 孙光民 , 陈佳阳 , 李冰 et al. 双尺度网络高分辨率楼面影像微小缺陷检测 [J]. | 孙光民 , 2021 , 42 (2) : 286-293 . |
MLA | 孙光民 et al. "双尺度网络高分辨率楼面影像微小缺陷检测" . | 孙光民 42 . 2 (2021) : 286-293 . |
APA | 孙光民 , 陈佳阳 , 李冰 , 李煜 , 闫冬 , 哈尔滨工程大学学报 . 双尺度网络高分辨率楼面影像微小缺陷检测 . | 孙光民 , 2021 , 42 (2) , 286-293 . |
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摘要 :
Automatic segmentation of optic disc (OD) and optic cup (OC) is an essential task for analysing colour fundus images. In clinical practice, accurate OD and OC segmentation assist ophthalmologists in diagnosing glaucoma. In this paper, we propose a unified convolutional neural network, named ResFPN-Net, which learns the boundary feature and the inner relation between OD and OC for automatic segmentation. The proposed ResFPN-Net is mainly composed of multi-scale feature extractor, multi-scale segmentation transition and attention pyramid architecture. The multi-scale feature extractor achieved the feature encoding of fundus images and captured the boundary representations. The multi-scale segmentation transition is employed to retain the features of different scales. Moreover, an attention pyramid architecture is proposed to learn rich representations and the mutual connection in the OD and OC. To verify the effectiveness of the proposed method, we conducted extensive experiments on two public datasets. On the Drishti-GS database, we achieved a Dice coefficient of 97.59%, 89.87%, the accuracy of 99.21%, 98.77%, and the Averaged Hausdorff distance of 0.099, 0.882 on the OD and OC segmentation, respectively. We achieved a Dice coefficient of 96.41%, 83.91%, the accuracy of 99.30%, 99.24%, and the Averaged Hausdorff distance of 0.166, 1.210 on the RIM-ONE database for OD and OC segmentation, respectively. Comprehensive results show that the proposed method outperforms other competitive OD and OC segmentation methods and appears more adaptable in cross-dataset scenarios. The introduced multi-scale loss function achieved significantly lower training loss and higher accuracy compared with other loss functions. Furthermore, the proposed method is further validated in OC to OD ratio calculation task and achieved the best MAE of 0.0499 and 0.0630 on the Drishti-GS and RIM-ONE datasets, respectively. Finally, we evaluated the effectiveness of the glaucoma screening on Drishti-GS and RIM-ONE datasets, achieving the AUC of 0.8947 and 0.7964. These results proved that the proposed ResFPN-Net is effective in analysing fundus images for glaucoma screening and can be applied in other relative biomedical image segmentation applications.
关键词 :
Deep learning Deep learning Glaucoma Screening Glaucoma Screening Joint OD and OC segmentation Joint OD and OC segmentation Convolutional neural network Convolutional neural network
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GB/T 7714 | Sun, Guangmin , Zhang, Zhongxiang , Zhang, Junjie et al. Joint optic disc and cup segmentation based on multi-scale feature analysis and attention pyramid architecture for glaucoma screening [J]. | NEURAL COMPUTING & APPLICATIONS , 2021 , 35 (22) : 16129-16142 . |
MLA | Sun, Guangmin et al. "Joint optic disc and cup segmentation based on multi-scale feature analysis and attention pyramid architecture for glaucoma screening" . | NEURAL COMPUTING & APPLICATIONS 35 . 22 (2021) : 16129-16142 . |
APA | Sun, Guangmin , Zhang, Zhongxiang , Zhang, Junjie , Zhu, Meilong , Zhu, Xiao-rong , Yang, Jin-Kui et al. Joint optic disc and cup segmentation based on multi-scale feature analysis and attention pyramid architecture for glaucoma screening . | NEURAL COMPUTING & APPLICATIONS , 2021 , 35 (22) , 16129-16142 . |
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摘要 :
To reduce the high pre-weaning mortality rate of new-born piglets crushed by sows, a kind of recognition and evaluation method for sows' behavior based on the scheme of time-sharing and multiplexing by adopting triaxial acceleration and video sensors at day and night is proposed in this paper. For darker scene at night, random forest classifier with optimal 43-dimensional feature vector subset proposed in this paper is adopted to recognize four kinds of macro behaviors of sows roughly by adopting triaxial acceleration sensor MPU6050. The recognition rate can reach 89.4%. For brighter light scene during the day, an improved bilinear convolutional neural network method based on CBAM module is proposed in this paper to recognize seven kinds of micro behaviors of sows by video sensor. The recognition rate can reach 84.4%. The methods proposed in this paper can meet the requirement of real-time to recognize the behavior of sows during 24 hours on the premise of ensuring accuracy. Finally, an evaluation model of sows' maternal behavior level is set up in this paper. The achivement of the study can not only help the farm to select sows with higher maternal ability for breeding piglets, but also avoid the large-scale economic losses caused by the high mortality rate of piglets before weaning of the farm. © 2013 IEEE.
关键词 :
Behavioral research Behavioral research Convolutional neural networks Convolutional neural networks Decision trees Decision trees Losses Losses Population statistics Population statistics
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GB/T 7714 | Sun, Guangmin , Shi, Chong , Liu, Jie et al. Behavior Recognition and Maternal Ability Evaluation for Sows Based on Triaxial Acceleration and Video Sensors [J]. | IEEE Access , 2021 , 9 : 65346-65360 . |
MLA | Sun, Guangmin et al. "Behavior Recognition and Maternal Ability Evaluation for Sows Based on Triaxial Acceleration and Video Sensors" . | IEEE Access 9 (2021) : 65346-65360 . |
APA | Sun, Guangmin , Shi, Chong , Liu, Jie , Ma, Pan , Ma, Jingyan . Behavior Recognition and Maternal Ability Evaluation for Sows Based on Triaxial Acceleration and Video Sensors . | IEEE Access , 2021 , 9 , 65346-65360 . |
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