Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations最新文献

Uncertainty Analysis Based Attention Network for Lung Nodule Segmentation from CT Images 基于不确定性分析的CT图像肺结节分割关注网络

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546615

Guangrui Liang, Zhaoshuo Diao, Huiyan Jiang

{"title":"Uncertainty Analysis Based Attention Network for Lung Nodule Segmentation from CT Images","authors":"Guangrui Liang, Zhaoshuo Diao, Huiyan Jiang","doi":"10.1145/3546607.3546615","DOIUrl":"https://doi.org/10.1145/3546607.3546615","url":null,"abstract":"In recent years, with the development of computer science and technology, computer aided diagnosis (CAD) systems have played important role in clinical practice. Using deep learning technology, existing CAD systems can predict whether CT images contain lung nodule automatically. However, for the precise segmentation of lung nodule and nodule boundary, further diagnosis by doctors is required. The current widely used segmentation networks still have segmentation uncertainty in the lung nodules boundary, which will interfere the accuracy of segmentation results. To solve this problem, this paper propose a UAA-UNet (Uncertainty Analysis Based Attention UNet) based on the uncertainty analysis of edge regions. The network structure is divided into two stages. In the first stage, the initial segmentation map of the lung nodule is obtained, and the second stage focuses on the uncertainty region of the initial segmentation map. By learning the features of the uncertainty region, the uncertainty is reduced and the segmentation accuracy is improved. The second stage includes two modules, the uncertainty attention module and the uncertainty elimination module. In uncertainty attention module, the entropy map of the initial segmentation map of the lung nodule is input into the network as attention information to improve the network's ability to understand uncertainty. In uncertainty elimination module, by using EWCE (entropy map weighted cross entropy loss function), the entropy map of the prediction result is fed back to the network as a weight factor to further improve the network's learning ability of the uncertain region. We selected lung nodule slices from 1012 patients in the Lung Image Database Consortium (LIDC) to validate the feasibility and effectiveness of the proposed method. The experiment result shows that, in the lung nodule segmentation task, by leveraging uncertainty analysis, the network achieves significant improvements over the baseline network.","PeriodicalId":114920,"journal":{"name":"Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121849089","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

Application Research of Word Vector in Component Parsing 词向量在组件解析中的应用研究

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546625

Yimin Yang, F. Wan

{"title":"Application Research of Word Vector in Component Parsing","authors":"Yimin Yang, F. Wan","doi":"10.1145/3546607.3546625","DOIUrl":"https://doi.org/10.1145/3546607.3546625","url":null,"abstract":"As we all know, syntactic analysis is one of the classic tasks in the field of natural language processing, and its goal is to analyze the input sentence and obtain the corresponding syntactic structure. The machine idea of syntactic analysis came from the 1950s. Due to the importance of this task in natural language processing, syntactic analysis has become one of the very basic and very important tasks in the field of natural language processing, and this task has not only attracted a large number of the computer experts also attracted a large number of linguists, who made great contributions to the development of syntactic analysis. Since the development of syntactic analysis tasks, this research has made great progress, which has played a positive role in promoting the progress of natural language processing. However, there have always been two difficulties in the task of syntactic analysis: one is the accuracy of the analysis results; the other is the speed of analyzing the input sentences. From rule-based to statistics-based, from word vector models to pre-trained models, every technological innovation has contributed to the development of syntactic analysis tasks. Nonetheless, the heights achieved by the syntactic analysis task have not completely overcome the long-standing challenges of accuracy of results and speed of analysis. Therefore, syntactic analysis still has great value and research significance. This paper will start from three aspects: the development status of component parsing algorithms, the impact of word vector technology on component parsing, and syntactic parsing algorithms.","PeriodicalId":114920,"journal":{"name":"Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132617165","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 Cloud-Based Mobile Augmented Reality Application for BIM Collaboration 基于云的移动增强现实BIM协作应用

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546612

Aymane Dahbi, Ikram Laaouan, R. Hajji, Y. Ben Brahim

引用次数: 2

Regulation of the Metaverse: A Roadmap: The risks and regulatory solutions for largescale consumer platforms. 虚拟世界的监管:路线图:大型消费平台的风险和监管解决方案。

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546611

Louis B. Rosenberg

引用次数: 37

Research on Design of News Video Retrieval System Based on Semantics 基于语义的新闻视频检索系统设计研究

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546618

Xu-Hui Zhang

引用次数: 0

Semantic Segmentation Model of Fluorescent Neuronal Cells in Mouse Brain Slices Under Few Samples. 少量样本下小鼠脑切片荧光神经元细胞语义分割模型

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546617

Zehua Zhang, Bailing Liu, Gaohao Zhou

引用次数: 0

360-Degree Immersive Experience for Indoor Cycling 360度沉浸式室内骑行体验

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546608

Udara Mendis, S.M.D.P Maduwantha, K.A.S.A. Perera, Dinely Wellehewage, Thilina S. Ambagahawaththa, D. Dias

{"title":"360-Degree Immersive Experience for Indoor Cycling","authors":"Udara Mendis, S.M.D.P Maduwantha, K.A.S.A. Perera, Dinely Wellehewage, Thilina S. Ambagahawaththa, D. Dias","doi":"10.1145/3546607.3546608","DOIUrl":"https://doi.org/10.1145/3546607.3546608","url":null,"abstract":"Indoor cycling is a concept that has emerged with technological advancements to serve multiple purposes such as fitness, virtual tourism, and leisure. Commercial solutions have been developed to serve different user groups, with emphasis on corresponding aspects of user experience. This paper proposes a novel approach to indoor cycling, combining key features including real-world 360-degree view, immersive environment, real-time interaction between the real and virtual worlds and dynamic resistance control to simulate changes in elevation. In the proposed solution, a mobile application provides an immersive cycling environment by playing 360-degree videos on a Virtual Reality headset. The environment responds to user movements such as head rotation and cycling speed changes, and in return replicates the actual resistance to the rider using automatic resistance control. These components are connected by a local Wi-Fi network and is fine-tuned for minimal latency based on international benchmarks. Our prototype system was tested for performance both qualitatively and quantitatively, particularly for the impact of the mobile device resolution and processing capabilities. Further improvements were identified to enhance the overall user experience","PeriodicalId":114920,"journal":{"name":"Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127636975","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

Comparative Analysis of Carbon Emissions in Tianjin Based on LMDI Method and STIRPAT Model 基于LMDI和STIRPAT模型的天津市碳排放比较分析

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546623

Maohui Liu, Meng Sun, Shengnan Liu, Yayun Yue, Huaxin Zhai, Duokun Yang, Jing Li

引用次数: 2

Machining Hole Feature Recognition Method and Application for Manufacturability Check 加工孔特征识别方法及其在可加工性检测中的应用

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546619

Lei Gong, Xianmou Xue, Tongbao Wang, Teng Wu, Hui Zhang, Zhiqin Meng

{"title":"Machining Hole Feature Recognition Method and Application for Manufacturability Check","authors":"Lei Gong, Xianmou Xue, Tongbao Wang, Teng Wu, Hui Zhang, Zhiqin Meng","doi":"10.1145/3546607.3546619","DOIUrl":"https://doi.org/10.1145/3546607.3546619","url":null,"abstract":"As the main basis of production, the correctness and standardization of product 3D model directly affect the quality of the product. At present, the mixed use of different modeling features in 3D CAD system leads to the semantic mismatch between design features and machining features in the process of product modeling, and designers can not guarantee the standardization of the modeling process. Therefore, it is urgent to carry out the research on machining feature recognition method, and comprehensively and accurately check and evaluate the model from the perspective of manufacturability. Based on this, a hole feature recognition method for manufacturability check is proposed in this paper. Based on the feature recognition method based on hint, according to the characteristics of machining hole features along the hole axis in the machining direction, this paper adopts the geometric retrieval strategy based on the local coordinate system of hole features, solves the problem of difficult recognition of intersecting features, completes the automatic recognition of hole features, and can endow machining and manufacturing semantics for manufacturability check. Finally, the recognition results of a typical cavity structure can verify the correctness of the recognition method.","PeriodicalId":114920,"journal":{"name":"Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124804697","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 Survey of Knowledge Representation Learning Based on Structure and Semantics 基于结构和语义的知识表示学习研究综述

Proceedings of the 6th International Conference on Virtual and Augmented Reality Simulations Pub Date : 2022-03-25 DOI: 10.1145/3546607.3546621

Ruyue Chen, F. Wan, Hongzhi Yu

引用次数: 0