International Conference on Electronic Technology and Information Science最新文献_第9页

A semantic modeling method to river networks for large-scale 3D virtual water environment 面向大规模三维虚拟水环境的河网语义建模方法

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682333

Weihua Liu, Ruiqiang Liu, Hua Wang

{"title":"A semantic modeling method to river networks for large-scale 3D virtual water environment","authors":"Weihua Liu, Ruiqiang Liu, Hua Wang","doi":"10.1117/12.2682333","DOIUrl":"https://doi.org/10.1117/12.2682333","url":null,"abstract":"Existing publicly available data of river network generally have low accuracy and even the data of confluence area are inconsistent with the physical characteristics of water flow, which makes it difficult to been directly used for modeling water environments. In this paper, to solve this problem, a semantic modeling method of river network for large-scale 3D virtual water environment is proposed. Firstly, the semantic objects of the river network with hierarchical coupling relationships are constructed by River, Link and Intersection. The constituent areas of the river network are refined, and the topological relationships among different areas of the river network are represented. Secondly, the geometric semantic data of the intersection area are divided into three categories, including intersection boundary, confluence boundary and tributary boundary, based on the influence of the flow dynamics. The Chézy’s formula is introduced to model the tributary boundary, which is significantly impacted by water flow scouring. Finally, the boundary data of various areas in the river network are automatically generated based on these semantic data. The experimental results indicate that high-precision boundary data can be automatically generated for different river network areas, which can improve the realism and reliability of river network virtual simulation. Additionally, the generated boundary data can also be used for large-scale 3D virtual water environment simulation modeling.","PeriodicalId":440430,"journal":{"name":"International Conference on Electronic Technology and Information Science","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131925736","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

Research on the processing algorithm of drilling image 钻孔图像处理算法的研究

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682401

Haoqi Yuan, Fuxin Xu, Penglei Fu

{"title":"Research on the processing algorithm of drilling image","authors":"Haoqi Yuan, Fuxin Xu, Penglei Fu","doi":"10.1117/12.2682401","DOIUrl":"https://doi.org/10.1117/12.2682401","url":null,"abstract":"In geological exploration, the texture and context information generated by different rocks on the inner wall of the drilling hole is of great significance to understand the geological condition. Drilling camera technology can obtain digital drilling video and hole wall images. For a long time, the method of manual interpretation is the main method of studying hole wall images. This method has problems such as poor real-time performance and low work efficiency .In this paper, the processing algorithm is designed based on the imaging characteristics of hole wall image and the method of digital image processing, including image preprocessing, image expansion and image stitching. First, the radius of the area is determined according to the image features, and then the concentric circle expansion method is used to obtain the rectangular expansion image. Finally, the SIFT feature point is used to complete the accurate matching with the Ransac algorithm, and use weighted average method to complete image fusion. The entire algorithm can obtain a panoramic expansion image of the hole wall area, laying the foundation for the quantitative analysis of drilling data.","PeriodicalId":440430,"journal":{"name":"International Conference on Electronic Technology and Information Science","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116611439","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

Research on enterprise classification of ERNIE-textCNN fusion focal loss ERNIE-textCNN融合焦损的企业分类研究

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682382

Ning Ma, Chang-yin Luo

引用次数: 0

Research on cross-modal hashing method based on diffusion mode 基于扩散模式的跨模态哈希方法研究

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682410

Wenjiao Li, Zirui Zhong

引用次数: 0

A BP neural network time delay prediction method based on phase space reconstruction 基于相空间重构的BP神经网络时延预测方法

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682466

W. Sun, Liyan Zhang, Huigang Xu, S. Dou, Changxiang Li

引用次数: 0

Node strength variability of brain network applied to single-hand movement directions decoding 脑网络节点强度变异性在单手动作方向解码中的应用

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682331

Yanjiao Wang, Qin Wei

{"title":"Node strength variability of brain network applied to single-hand movement directions decoding","authors":"Yanjiao Wang, Qin Wei","doi":"10.1117/12.2682331","DOIUrl":"https://doi.org/10.1117/12.2682331","url":null,"abstract":"Electroencephalograms (EEG) signals can be used to decode hand movement parameters. Most of the researches on decoding hand movement parameters concentrated efforts on low-frequency feature of EEG extracted from timefrequency domain. However, complex brain structure and performance of various frequency bands have been less taken into account for hand movement direction decoding. In this paper, the node strength variability (NSV), a novel feature, was proposed to decode hand movement between horizontal and vertical direction. It is generated from discrepancy of connectivity among electrode nodes in two adjacent periods of brain networks constructed based on the phase locking value (PLV) from EEG signals. Five volunteers participated in our experiments, and totally 600 sets of EEG data were collected. NSV of five distinct frequency bands obtained between preparation and movement execution were applied to classify hand movement direction for each subject through a ten-fold cross-validation support vector machine (SVM). The results indicated that NSV of alpha band has the best effect on distinguishing horizontal and vertical hand movement directions, which provides new ideas for hand movement direction decoding.","PeriodicalId":440430,"journal":{"name":"International Conference on Electronic Technology and Information Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126044206","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

NASRUKF UAV based on combined navigation algorithm 基于组合导航算法的NASRUKF无人机

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682503

Yih-Farn Wang, Guifen. Chen, X. Li, Guangjiao Chen

{"title":"NASRUKF UAV based on combined navigation algorithm","authors":"Yih-Farn Wang, Guifen. Chen, X. Li, Guangjiao Chen","doi":"10.1117/12.2682503","DOIUrl":"https://doi.org/10.1117/12.2682503","url":null,"abstract":"Combined navigation system is a navigation and positioning system composed of inertial navigation system and BeiDou satellite navigation system. Most of the navigation system models in combined navigation are nonlinear, but the traditional Kalman filtering algorithm is not well applied to nonlinear equations, and the Unscented Kalman filtering algorithm and Extended Kalman filtering algorithm which can be applied to nonlinear equations are constant in the fusion process of noise, so it will cause filtering divergence. In this paper, on the basis of Unscented Kalman filtering algorithm proposed will introduce the square root traceless Kalman filter algorithm, the algorithm through QR decomposition and Cholesk decomposition, the Sage-Husa algorithm combined with Square Root Unscented Kalman Filter algorithm, directly calculate the state error covariance matrix prediction and estimation of the square root factor, maintain the stability of the filtering, through practice proved that compared to Kalman filtering .The Nonlinear adaptive regression square root Kalman filter filter has a good navigation and positioning function, as the filtering is more convergent and the position accuracy can be within 5m, the speed error can be between 0.5m/s-1m/s. Compared with KF algorithm, the position error is increased by about 75%, and the speed error is increased by about 50%.","PeriodicalId":440430,"journal":{"name":"International Conference on Electronic Technology and Information Science","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133062593","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

Low-power approximate multipliers for artificial intelligence chips 用于人工智能芯片的低功耗近似乘法器

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682332

Hui Xiao

引用次数: 0

Turbo code optimization based on terahertz communication 基于太赫兹通信的Turbo代码优化

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682394

Yuanming Ding, Lanting Zhao, Jianxin Feng

引用次数: 0

Research on platinum film resistance temperature sensing method 铂膜电阻温度传感方法的研究

International Conference on Electronic Technology and Information Science Pub Date : 2023-06-20 DOI: 10.1117/12.2682543

Cunbao Huang, Fengxiang Guo, Wei-Lian Sun, Xueping Chai, Xueyu Zhang, Shousheng Liu, Guangsen Xia, Zhigang Gai

{"title":"Research on platinum film resistance temperature sensing method","authors":"Cunbao Huang, Fengxiang Guo, Wei-Lian Sun, Xueping Chai, Xueyu Zhang, Shousheng Liu, Guangsen Xia, Zhigang Gai","doi":"10.1117/12.2682543","DOIUrl":"https://doi.org/10.1117/12.2682543","url":null,"abstract":"As one of the seven basic units in the International System of Units (SI), the temperature quantity is also the most important physical parameter of the ocean. The development of high-performance temperature sensing technology methods and sensors to achieve high-precision measurement of ocean temperature and compensation of elemental parameters is an important guarantee to improve ocean monitoring technology and promote the development of ocean resources. In this paper, we use mask lithography method combined with magnetron sputtering method to study the effect of microstructure size parameters of platinum film resistors on their temperature sensing performance, such as temperature coefficient, measurement accuracy, etc. This experiment simply and accurately determines the effect of the length and width of the resistor wire on the measurement error and temperature coefficient (TCR) of the platinum film resistor, and achieves the preparation of high precision and high stability platinum film resistors by controlling the structural parameters of the platinum film resistor wire.","PeriodicalId":440430,"journal":{"name":"International Conference on Electronic Technology and Information Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122329945","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