... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging最新文献

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A fast CUM-m-Capon algorithm for DOA estimation based on fourth-order cumulant 基于四阶累积量的快速com -m- capon DOA估计算法
K. Chao, Xinyu Zhang, K. Huo, Weidong Jiang
{"title":"A fast CUM-m-Capon algorithm for DOA estimation based on fourth-order cumulant","authors":"K. Chao, Xinyu Zhang, K. Huo, Weidong Jiang","doi":"10.1117/12.2501766","DOIUrl":"https://doi.org/10.1117/12.2501766","url":null,"abstract":"The problem of super-resolution DOA estimation in very low SNR has attracted much interest for decades. In this paper we proposed a fast DOA estimation algorithm based on fourth-order cumulant for MIMO system radar. Combining with the average matrix dimension reduction technique the proposed CUM-m-Capon DOA estimation algorithm can achieve improved performance of DOA estimation. From Matlab simulation result, we can see that the proposed algorithm has a high resolution at low SNR. After adopting the average dimension reduction technique, the complexity of the algorithm is lower. The test using measured data shows that the proposed method could achieve better accuracy and robustness.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85394428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recognizing emotions in chinese text using dictionary and ensemble of classifiers 基于词典和分类器集成的汉语文本情感识别
Yanyong Ai, Zhenxiang Chen, Shanshan Wang, Ying Pang
{"title":"Recognizing emotions in chinese text using dictionary and ensemble of classifiers","authors":"Yanyong Ai, Zhenxiang Chen, Shanshan Wang, Ying Pang","doi":"10.1117/12.2501916","DOIUrl":"https://doi.org/10.1117/12.2501916","url":null,"abstract":"In recent years, subjective texts have shown great application value. As a hot research issues in the field of natural language processing, analysis of emotions in text, has attracted attentions from many scholars and also greatly develops research on the emotional polarity of Chinese texts. This paper presents an emotional classification algorithm combining dictionary and ensemble classifier. Firstly, based on the fusion of multiple dictionaries such as emotional dictionary, degree dictionary, and negative dictionary, output the negative and positive scores of each sentence according to the designed emotion calculation algorithm. Defining the difference value between negative and positive scores as the emotional tendency value, the samples are sorted by the amount of emotional tendency value and samples with the highest emotional tendency value are selected as the training samples. Finally, the ensemble classifier is used to classify the text emotions. Based on six machine learning algorithms including polynomial Bayes, decision tree, random forest, k-nearest neighbor, SVM, and logistic regression, the ensemble classifier aims to achieve the best classification effect and minimize the disadvantages of individual classifiers. The results show that the classification accuracy of the ensemble classifier is better than that of individual classifiers.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84773346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Aesthetic QR code generation with background contrast enhancement and user interaction 美观的QR码生成与背景对比度增强和用户交互
Lijian Lin, Xinyi Zou, L. He, Sijiang Liu, Bo Jiang
{"title":"Aesthetic QR code generation with background contrast enhancement and user interaction","authors":"Lijian Lin, Xinyi Zou, L. He, Sijiang Liu, Bo Jiang","doi":"10.1117/12.2502054","DOIUrl":"https://doi.org/10.1117/12.2502054","url":null,"abstract":"Quick Response Code, abbreviated as QR code, is a two dimensional matrix which is extensively used both in the automotive industry and the general commercial applications currently. Compared with traditional barcodes, QR code is prevalent for its enormous information capacity and efficient error correction mechanism. Moreover, the standard QR codes possess a high decode rate at the expense of the aesthetic appearance. With an intension to resolve the contradiction, we propose a novel aesthetic QR code generation method. Differing from previous works, which mainly rely on the error correction mechanism, we first enhance the contrast of the background image so that more modules can be eliminated after initial threshold based module elimination, while maintaining the readability and demonstrate visual information to customers simultaneously. User interaction can be further adopted to delete modules as customer required using error correction mechanism.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77426127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An abnormal telephone identification model based on ensemble algorithm 基于集成算法的异常电话识别模型
Y. Yuan, Ke Ji, R. Sun, Kun Ma
{"title":"An abnormal telephone identification model based on ensemble algorithm","authors":"Y. Yuan, Ke Ji, R. Sun, Kun Ma","doi":"10.1117/12.2501790","DOIUrl":"https://doi.org/10.1117/12.2501790","url":null,"abstract":"Due to the rapid development of the communications industry and the popularization of telephones, more and more personal information leaks and telephone fraud cases have occurred in the life.For the problem of fraudulent calls, there are deficiencies for operators to solve these problems.Inspired by the ensemble algorithm, it was found that the bagging algorithm can solve the classification problem of unbalanced data.This paper proposes an abnormal phone recognition model based on bagging algorithm.In particular, we used PCA dimension reduction in processing data to better mine the effective features of the sample, Multiple training sets are constructed by bootstrap sampling, and the ensemble of multiple training set-trained learners can solve the classification problem of unbalanced abnormal telephone data. Experiments show that the accuracy of prediction results of the abnormal phone recognition model based on the integrated algorithm is better than the prediction results of the single decision tree model, and the problem of unbalanced samples was solved and a relatively ideal prediction effect was achieved.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"41 21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88757459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Target regression tracking based on convolutional neural network 基于卷积神经网络的目标回归跟踪
Hongwei Zhang, Xiang Fan, Bin Zhu, Bo Xie, Qi Ma
{"title":"Target regression tracking based on convolutional neural network","authors":"Hongwei Zhang, Xiang Fan, Bin Zhu, Bo Xie, Qi Ma","doi":"10.1117/12.2501844","DOIUrl":"https://doi.org/10.1117/12.2501844","url":null,"abstract":"For visual tracking with UAV, the non-rigid body change of target usually results in the accumulation of errors and decline of tracking precision. In view of this problem, a target regression tracking algorithm based on convolutional neural network is proposed. Firstly, we use the Siamese convolutional neural network to extract features which used as the input of tracker based on self-adapted scale kernel correlation filters. Then, in order to cope with the cumulative errors caused by the change of target form, a target regression network is designed to refine the location. Using the refined location to extract sample and update the filter parameters of tracker can prevent tracker from being polluted. The experimental results show that the algorithm has high tracking precision as well as fast speed compared to the state-of-the-art tracking algorithms, especially with the ability to deal with the non-rigid body change of target.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81509331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A computer aided diagnosis system for lung cancer detection using support vector machine 基于支持向量机的肺癌计算机辅助诊断系统
B. Şekeroğlu, Erkan Emirzade
{"title":"A computer aided diagnosis system for lung cancer detection using support vector machine","authors":"B. Şekeroğlu, Erkan Emirzade","doi":"10.1117/12.2502010","DOIUrl":"https://doi.org/10.1117/12.2502010","url":null,"abstract":"Computer aided diagnosis (CAD) is started to be implemented broadly in the diagnosis and detection of many varieties of abnormalities acquired during various imaging procedures. The main aim of the CAD systems is to increase the accuracy and decrease the time of diagnoses, while the general achievement for CAD systems are to find the place of nodules and to determine the characteristic features of them. As lung cancer is one of the fatal and leading cancer types, there has been plenty of studies for the usage of the CAD systems to detect lung cancer. Yet, the CAD systems need to be developed a lot to identify the different shapes of nodules, lung segmentation and to have higher level of sensitivity, specifity and accuracy. In this paper, Lung Image Database Consortium (LIDC) database is used which comprises of an image set of lung cancer thoracic documented CT scans. After performing image pre-processing, segmentation, feature extraction/selection steps, classification is utilized using Support Vector Machine (SVM) with Gaussian RBF and 97.3% of specificity and 92.0% of sensitivity is achieved which is superior to recently proposed CAD systems.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78673894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Design for omni-directional mobile wheelchair control system based on brain computer interface 基于脑机接口的全向移动轮椅控制系统设计
Jiaxing Lu, Linyan Wu, Weiwei Zai, Nuo Gao
{"title":"Design for omni-directional mobile wheelchair control system based on brain computer interface","authors":"Jiaxing Lu, Linyan Wu, Weiwei Zai, Nuo Gao","doi":"10.1117/12.2501771","DOIUrl":"https://doi.org/10.1117/12.2501771","url":null,"abstract":"Based on Stable-State Visual Evoked Potentials (SSVEP) signal generation method, the multi-mode control system with manual control, remote control and brain computer signal control for omni-directional wheelchair system is designed. The system structure design, EEG signal acquisition and recognition processing technology are introduced. The software architecture of the overall control system, kinematical modeling of the omni-directional wheelchair, implementation of fundamental motion control algorithm and the design of wheelchair motion control algorithm are expounded. The paper illustrates the software architecture of main control system, and the design of motion scheduling and controlling algorithm. The system utilizes user’s EEG signal to control movement of wheelchair; remotely controlling movement of wheelchair. The system has friendly interactive interface for staffs of monitor center or relatives of patients to supervise state of wheelchair motion and information of environment in real time. Experimental results prove that the system could stably and reliably analyze EEG signal, possessing some practical value.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77363513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hadoop-based analysis model of network public opinion and its implementation 基于hadoop的网络舆情分析模型及其实现
Fei Wang, Peiyu Liu, Zhenfang Zhu
{"title":"Hadoop-based analysis model of network public opinion and its implementation","authors":"Fei Wang, Peiyu Liu, Zhenfang Zhu","doi":"10.1117/12.2502133","DOIUrl":"https://doi.org/10.1117/12.2502133","url":null,"abstract":"In order to perform network public opinion mining effectively, this paper proposes a Hadoop-based network public opinion analysis model, which applies HDFS file service system to store massive network data distributed, providing fault tolerance and reliability assurance; As the traditional K-means clustering method is too inefficient to process massive data during the clustering process, this paper adopts MapReduce-based K-means distributed topic clustering computation method to process the massive public opinion information through multi-computer cooperation efficiently; And to obtain the information of hot network public opinion in a certain period of time by the analysis of topic heat, and verify the effectiveness of the proposed method by experiments.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76127121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Surface defects detection of paper dish based on Mask R-CNN 基于Mask R-CNN的纸盘表面缺陷检测
Xuelong Wang, Ying Gao, Junyu Dong, Xukun Qin, Lin Qi, Hui Ma, J. Liu
{"title":"Surface defects detection of paper dish based on Mask R-CNN","authors":"Xuelong Wang, Ying Gao, Junyu Dong, Xukun Qin, Lin Qi, Hui Ma, J. Liu","doi":"10.1117/12.2502097","DOIUrl":"https://doi.org/10.1117/12.2502097","url":null,"abstract":"Machine vision is widely used in the detection of surface defects in industrial products. However, traditional detection algorithms are usually specialized and cannot be generalized to detect all types of defects. Object detection algorithms based on deep learning have powerful learning ability and can identify various types of defects. This paper applied object detection algorithm to defects detection of paper dish. We first captured the images with different shapes of defects. Then defects in these images were annotated and integrated for model training. Next, the model Mask R-CNN were trained for defects detection. At last, we tested the model on different defects categories. Not only the category and the location of the defect in the image could be got, but also the pixel segmentation were given. The experiments show that Mask R-CNN is a successful approach for defect detection task, which can quickly detect defects with a high accuracy.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81748894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Rapid image retrieval with binary hash codes based on deep learning 基于深度学习的二进制哈希码快速图像检索
GuangWei Deng, Cheng Xu, Xiaohan Tu, Tao Li, Nan Gao
{"title":"Rapid image retrieval with binary hash codes based on deep learning","authors":"GuangWei Deng, Cheng Xu, Xiaohan Tu, Tao Li, Nan Gao","doi":"10.1117/12.2502072","DOIUrl":"https://doi.org/10.1117/12.2502072","url":null,"abstract":"With the ever-growing large-scale image data on the web, rapid image retrieval has become one of the hot spots in the multimedia field. And it is still very difficult to reliable image retrieval due to the complex image appearance variations. Inspired by the robustness of convolutional neural networks features, we propose an effective deep learning framework to generate compact similarity-preserving binary hash codes for rapid image retrieval. Our main idea is incorporating deep convolutional neural network (CNN) into hash functions to jointly learn feature representations and mappings from them to hash codes. In particular, our approach which learns hash codes and image representations takes pairs of images as training inputs. Meanwhile, an effective loss function is used to maximize the differentiability of the output space by encoding the supervised information from the input image pairs. We extensively evaluate the retrieval performance on two large-scale datasets CIFAR-10 and NUS-WIDE, and the evaluation shows that our method gives a better performance than traditional hashing learning methods in image retrieval.","PeriodicalId":90079,"journal":{"name":"... International Workshop on Pattern Recognition in NeuroImaging. International Workshop on Pattern Recognition in NeuroImaging","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84295306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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