发布求助
文献互助 智能选刊 最新文献

JITeCS Journal of Information Technology and Computer Science最新文献

筛选
英文 中文
Laser-driven white illumination system based on diffuse reflection 基于漫反射的激光驱动白光照明系统
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653476
Q. Luo, Baolin Liu, Xiaoyan Zhang
{"title":"Laser-driven white illumination system based on diffuse reflection","authors":"Q. Luo, Baolin Liu, Xiaoyan Zhang","doi":"10.1117/12.2653476","DOIUrl":"https://doi.org/10.1117/12.2653476","url":null,"abstract":"In this paper, a scheme of laser-driven white light illumination based on diffuse reflection is proposed, which can effectively avoid the blue spot phenomenon. The white light with color temperature of 4717 K, lumen of 9.705 lm and color rendering index of 62 can be obtained by using the illumination module with 0.05 W blue laser excitation, which is consistent with the theoretical calculation results. We propose two methods to improve the white light uniformity, namely hook face and concentration gradient.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85717748","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
Period estimation of noise-laden signals under non-integer period truncation 非整数周期截断下含噪信号的周期估计
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653457
Chunyan Liu, Liangyu Chen, Xin Li, Pinjia Zeng, Jiaojiao Bai, shen Fan
{"title":"Period estimation of noise-laden signals under non-integer period truncation","authors":"Chunyan Liu, Liangyu Chen, Xin Li, Pinjia Zeng, Jiaojiao Bai, shen Fan","doi":"10.1117/12.2653457","DOIUrl":"https://doi.org/10.1117/12.2653457","url":null,"abstract":"In the field of digital signal analysis and processing, discrete spectrum analysis is always an inevitable research topic. Signal period estimation plays an important role in improving the accuracy of spectrum analysis. When we perform truncation analysis on the signal, it is inevitable that the signal will be truncated by non-integral period, resulting in spectrum leakage. In this paper, we study the spectrum leakage law, obtain the leakage law of spectrum leakage attenuating by Gaussian function approximately along the frequency direction, and propose the minimum energy leakage period estimation method based on autocorrelation. The experimental results show that the algorithm is simple and can estimate the period of the signal when the signal-to-noise ratio is -10dB, which has strong anti-noise characteristics.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86405582","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
Metadata design and integration algorithm of science and technology resources among colleges 高校科技资源元数据设计与集成算法
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653475
Huamin Wang, Huawei Wang, Yuan-hsin Chen, Zeyin Su
{"title":"Metadata design and integration algorithm of science and technology resources among colleges","authors":"Huamin Wang, Huawei Wang, Yuan-hsin Chen, Zeyin Su","doi":"10.1117/12.2653475","DOIUrl":"https://doi.org/10.1117/12.2653475","url":null,"abstract":"Under the influence of the epidemic, the offline cooperation between college laboratories has decreased, more and more cooperation is going online. Therefore, the research on the integration and sharing of heterogeneously described university resources has become a hot topic. Based on some scientific metadata standard research, this paper proposes metadata standards including university talents, instruments, laboratories by analyzing the metadata standards of existing scientific data. Then, a heterogeneous scientific data integration mapping algorithm is designed.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86881809","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
Target video intelligent processing system based on Raspberry Pi 基于树莓派的目标视频智能处理系统
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653678
Junren Chen, Weiqin Huang, Yijing Guo, Yi Qiu
{"title":"Target video intelligent processing system based on Raspberry Pi","authors":"Junren Chen, Weiqin Huang, Yijing Guo, Yi Qiu","doi":"10.1117/12.2653678","DOIUrl":"https://doi.org/10.1117/12.2653678","url":null,"abstract":"In order to effectively solve the problems of insufficient storage capacity, too late to shoot wonderful moments, and limited range of shooting space, a target video intelligent processing system based on Raspberry Pi is proposed. The system runs on the Raspberry Pi, and drives the camera to shoot a wider range of indoor environment video streams through the servo gimbal. For each frame of image in the video stream, image grayscale, filter denoising and histogram, equalization techniques are used for preprocessing. In the target detection and tracking stage, first use the OpenCV machine vision library to call the MobileNet lightweight convolutional neural network and SSD algorithm combined model (MobileNetSSD) for target detection, then it can alculate the relative position of the camera center focus and the target center, and finally drive the camera to track the target object. In terms of video processing, with the help of the results obtained during target detection, the automatic video editing process is completed by discarding the image frame without target object. Experiments show that the system can quickly and accurately track the target object to shoot, and effectively reduce the storage capacity of the video.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82662272","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
Design of ice snow tourism VR system 冰雪旅游VR系统设计
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653770
Yuqi Li, Xin Pu, Bo Song, Xu Zhang, Yanchao Li, Lili Wang
{"title":"Design of ice snow tourism VR system","authors":"Yuqi Li, Xin Pu, Bo Song, Xu Zhang, Yanchao Li, Lili Wang","doi":"10.1117/12.2653770","DOIUrl":"https://doi.org/10.1117/12.2653770","url":null,"abstract":"The virtual reality technology is used to design the virtual reality system about ice and snow tourism to effectively present the viewing content in a sensory way, so that users can experience the snow atmosphere personally. It is the existence of virtual reality technology, multi - perception, interaction and other characteristics that make it popular with many people. In the future, virtual reality technology will be applied to all aspects of life and bring convenience to people's lives. This paper focuses on the research and construction at home and abroad, in order to understand the actual situation of VR, discusses the common problems in China, and proposes the strategy and application prospect of VR and its application in international development.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82785367","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
An efficient method for producing deep learning point cloud datasets based on BIM 3D model and computer simulation 基于BIM三维模型和计算机仿真的深度学习点云数据集的高效生成方法
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653608
Heng Zhang, Tianyu Wang
{"title":"An efficient method for producing deep learning point cloud datasets based on BIM 3D model and computer simulation","authors":"Heng Zhang, Tianyu Wang","doi":"10.1117/12.2653608","DOIUrl":"https://doi.org/10.1117/12.2653608","url":null,"abstract":"Currently, 3D deep learning based on point cloud data has become a research hotspot in the field of computer vision. However, the high cost of acquiring point cloud data, the tedious process of processing and labeling, and the scarcity of high-quality and suitable datasets have been the prominent problems faced by researchers. In this paper, we propose a method to quickly produce point cloud dataset based on BIM 3D model and computer simulation technology, including the steps of classifying and labeling BIM models, converting 3D object data formats, extracting point clouds using Pytorch3d and Open3d libraries, and improving efficiency through Revit secondary development and Dos batch processing. Finally, we demonstrate the effectiveness of the method by performing semantic segmentation experiments using Pointnet++ network and analyzed the impact of point cloud sampling density, sampling method and 3D model accuracy on the performance of virtual point cloud. As a digital twin of the real world, BIM models are a natural database with rich scenes and all kinds of elements. It is hoped that the method studied in this paper can help researchers to produce datasets applicable to their own research and provide help for the application of 3D deep learning techniques in engineering and other fields.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83625373","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 ZigBee network channel interference type identification method based on BP neural network 基于BP神经网络的ZigBee网络信道干扰类型识别方法
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653614
Li Zhu, Minghu Zha, Yunyun Zhu, Jianjun Tan
{"title":"A ZigBee network channel interference type identification method based on BP neural network","authors":"Li Zhu, Minghu Zha, Yunyun Zhu, Jianjun Tan","doi":"10.1117/12.2653614","DOIUrl":"https://doi.org/10.1117/12.2653614","url":null,"abstract":"ZigBee network communication in the LAN is susceptible to interference from WiFi, Bluetooth, adjacent network obstacles, and other factors. ZigBee network itself cannot identify the type of interference, resulting in network reliability decline, and in severe cases, it will cause network paralysis. In response to this problem, this paper proposes a ZigBee network channel interference type identification method based on BP neural network, which accurately identifies the interference type by constructing neural networks in the ZigBee chip. If the decision output is WIFI or adjacent network interference on the same frequency, the ZigBee network communication channel is configured through the MAC layer of the ZigBee protocol stack to avoid interference. If the decision output is obstacle interference, the physical network can be reconstructed to avoid obstacles. Through simulation verification, the ZigBee network channel interference type identification method can significantly improve ZigBee network communication quality and anti-interference performance, which has application value.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76946887","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
Design of pattern drawing software for 3D food printing equipment 食品3D打印设备图案绘制软件设计
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2654061
Yi-Juan Ji, Yi-Jing Guo, Fengqiang Guo, Xiaoping You, Zhe-Hao Liu, Qimiao Zheng
{"title":"Design of pattern drawing software for 3D food printing equipment","authors":"Yi-Juan Ji, Yi-Jing Guo, Fengqiang Guo, Xiaoping You, Zhe-Hao Liu, Qimiao Zheng","doi":"10.1117/12.2654061","DOIUrl":"https://doi.org/10.1117/12.2654061","url":null,"abstract":"Traditional 3D printing usually uses professional software such as SolidWorks and Maya for modeling. However, applying the software mentioned above to customize 3D food printing patterns has the problems of a solid professional operation and high skill requirements. In response to this problem, a pattern drawing software applied to 3D food printing equipment was designed. The software uses image processing technology and C# programming language, based on Windows operating system and. NET Framework, combined with SQLite database technology to achieve product pattern drawing and model export functions. Among them, the automatic extraction of the enclosed area realized by the flood filling algorithm is the core function of product pattern drawing; the automatic acquisition of the contour of the connected graph recognized by the canny edge detection algorithm is the crucial step of the model derivation. The test results show that the software can quickly implement template import, pattern drawing, model export, and other operations, which improves the efficiency and ease of operation of pattern drawing in 3D food printing; The model file exported by the software can be directly used in the layered printing process of a 3D printer, which provides a direction for promoting the application of 3D printing technology in the food industry.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74495197","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
An analytic hierarchy process model for primary and secondary school libraries 中小学图书馆的层次分析法模型
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653556
W. Yang, Changyan Tang
{"title":"An analytic hierarchy process model for primary and secondary school libraries","authors":"W. Yang, Changyan Tang","doi":"10.1117/12.2653556","DOIUrl":"https://doi.org/10.1117/12.2653556","url":null,"abstract":"In the era of big data, it is of great practical significance to improve the service quality of primary and secondary school libraries through digitization. On the basis of sufficient survey, an analytic hierarchy process (AHP) model is proposed to evaluate the service quality of primary and secondary school libraries. According to the proposed model, a library service evaluation index system for primary and secondary school libraries is constructed, including 6 first-level indicators, 16 second-level indicators and 28 third-level indicators. The proposed index system can comprehensively and objectively evaluate the service and management of primary and secondary school libraries, and has good application value.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75181423","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
Various controls of household appliances system 家用电器系统的各种控制
JITeCS Journal of Information Technology and Computer Science Pub Date : 2022-12-08 DOI: 10.1117/12.2653805
B. Chen
{"title":"Various controls of household appliances system","authors":"B. Chen","doi":"10.1117/12.2653805","DOIUrl":"https://doi.org/10.1117/12.2653805","url":null,"abstract":"In view of the single control mode of traditional household appliances, which can't meet people's diversified needs of household appliances control, this paper designs a set of household appliances control system based on multiple modes. The system consists of three parts, including mobile app, host and slave. The master-slave control mode is designed with single-chip microcomputer as the control chip. The host receives the control command from the mobile app and sends it to the slave through the wireless module. After receiving the control command, the slave controls the household appliances through the relay module. Users can control household appliances in a variety of ways, such as button control, voice control and mobile phone control. After testing, the system is stable and reliable. It can meet people's demand for intelligent control of household appliances.","PeriodicalId":32903,"journal":{"name":"JITeCS Journal of Information Technology and Computer Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81621356","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信