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16th International Conference on computer graphics, Visualization, computer Vision and Image Processing, CGVCVIP 2022, 8th International Conference on Connected Smart Cities, CSC 2022, 7th International Conference on Big Data Analytics, Data Mining and Computational Intelligence, BigDaCI 2022, and 11th International Conference on theory and practice in Modern Computing, TPMC 2022 - Held at the 16th Multi Conference on computer Science and Information Systems, MCCSIS 2022

作者： Lysmos, Mezui Eya'a Guy Hanoune, Mostafa Dept. of Computer Science University Hassan II of Casablanca Faculty of the Sciences Ben M'Sik Av Driss El Harti B.P 7955 Sidi Othmane Casablanca Morocco

ISBN: (纸本)9789898704429

In this article, we introduce advanced data processing methods in an intelligent gateway. These methods are techniques for optimizing, in a first stage, the storage space of the data of the system coming from the sensors in real time and, in a second stage, the bandwidth of the network for the transfer of the data from the local to the cloud or the remote server. Among these methods, we have first, centralized data processing that uses cyclical supervision at each detected data stream. This supervision is carried out thanks to a controller agent, which filters and segments the data according to their nature, their size and their sensitivity over regular time intervals. Second, random data processing, which consists of randomly processing the data sent by the sensors when the behavior of the compression node is stable. Third, dynamic targeted data processing that allows you to dynamically choose which node to query. During this approach, we used global variables to determine the limits of the volumes of data stored during a given period, to control the stopping and the resuming of data transfer. Finally, a comparative study of these methods has been highlighted to highlight the performance and efficiency of each. © MCCSIS *** rights reserved.

关键词： Internet of things

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DOMAIN ADAPTATION IN IMAGE DEHAZING: EXPLORING THE USAGE OF IMAGES FROM VIRTUAL SCENARIOS 16

DOMAIN ADAPTATION IN IMAGE DEHAZING: EXPLORING THE USAGE OF ...

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作者： Sappa, Angel D. Suárez, Patricia L. Velesaca, Henry O. Carpio, Darío Escuela Superior Politécnica del Litoral ESPOL Campus Gustavo Galindo Km. 30.5 P.O. Box 09 Vía Perimetral 01-5863 Ecuador Computer Vision Center Campus UAB Bellaterra Barcelona08193 Spain

ISBN: (纸本)9789898704429

This work presents a novel domain adaptation strategy for deep learning-based approaches to solve the image haze removal problem. Firstly, a large set of synthetic images is generated by using a realistic 3D graphic simulator;these synthetic images contain different densities of haze, which are used for training the model that is later adapted to any real scenario. The adaptation process requires just a few images to fine-tune the model parameters. The proposed strategy allows overcoming the limitation of training a given model with few images. In other words, the proposed strategy implements the adaptation of a haze removal model trained with synthetic images to real scenarios. It should be noticed that it is quite difficult, if not impossible, to have large sets of pairs of real-world images (with and without haze) to train in a supervised way haze removal algorithms. Experimental results are provided showing the validity of the proposed domain adaptation strategy. © MCCSIS *** rights reserved.

关键词： Deep learning

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Development of a Control System for a Vibratory Lapping-Polishing Machine 28

Development of a Control System for a Vibratory Lapping-Poli...

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28th IEEE International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave theory, DIPED 2023

作者： Korendiy, Vitaliy Kachur, Oleksandr Zakharov, Viktor Department of Technical Mechanics and Engineering Graphics Lviv Polytechnic National University Lviv Ukraine Department of Computer-Aided Design Lviv Polytechnic National University Lviv Ukraine Department of Technical Mechanics and Engineering Graphics Lviv Polytechnic National UniversityGalca Ltd Lviv Ukraine

ISBN: (纸本)9798350315332

Vibratory equipment is widely used in various fields of mechanical, industrial, and manufacturing engineering. Particularly, such machines can be effectively implemented while carrying out finishing technological operations, e.g., glazing, polishing, and lapping of different machine parts. The present paper is focused on developing the control system for the novel design of a vibratory lapping-polishing machine driven by six solenoids. The main purpose consists in providing the circular trajectory of the working member and ensuring the machining uniformity at each point of the surface being treated. In such a case, it is proposed to actuate the solenoids with the specified time shift depending on the forced frequency needed to be provided. The duration of the signal actuating the solenoid is equal to one-sixth of the total duration of a cycle (period) of the working body oscillation. The corresponding control approach is developed and simulated in the Tinkercad application, while the control system is designed based on the Arduino hardware and software. In addition, the laboratory prototype of the vibratory lapping-polishing machine and the corresponding control system are implemented in practice. The performed laboratory studies and experimental tests substantiate the possibilities of generating the circular oscillations of the working member of the vibration-driven lapping-polishing machine. The obtained results may be useful for engineers and technologists dealing with control systems of various vibratory technological equipment based on electromagnetic and solenoid-type drives. © 2023 IEEE.

关键词： Polishing machines

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MATHEMATICAL MODELLING IN LIGHT AND ENGINEERING EDUCATION

LIGHT & ENGINEERING

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LIGHT & ENGINEERING 2023年第6期31卷 22-28页

作者： Korobko, Alexei A. ILEC Boos Lighting Grp LLC Moscow Russia

The development of computer technology and mathematical methods for solving the global illumi-nation equation gave rise to computer -aided lighting design systems, which in turn led to a genuine revo-lution in the practice of lighting design. Deep use of information technologies is possible only with a de-veloped mathematical description of the light field in a lighting installation. It is the theory of the light field, based on the theory of radiation transfer, that allows us to present all lighting technology from a single conceptual point of view. The mathematical apparatus of the theory of the light field is the ba-sis of the algorithms of all modern programs for the calculation of lighting installations, lighting devic-es, radiation, reflection, and transmission of light by real objects. As a result, there was a need for a sig-nificant change in light and engineering education. At the subdepartment of Light and Engineering of the NRU "MEI", following modern trends, new and new courses have appeared and are appearing, al-lowing students to obtain relevant knowledge. One of the new courses planned at the subdepartment is a course of mathematical modelling in light and en-gineering. It involves an in-depth study of the in-ternal structure of computer -aided design systems, which will allow obtaining specialists capable of solving non-standard tasks, creating funds for solv-ing these tasks and conducting research.

关键词： light and engineering computer graphics mathematical modelling engineering ed-ucation light field

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Screen Techniques: Oscilloscopes and the Embodied Instrumentality of Early Graphic Displays 19th

Screen Techniques: Oscilloscopes and the Embodied Instrument...

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19th International Conference on computer-Aided Architectural Design (CAAD) - Design Imperatives - The Future is Now

作者： Pertigkiozoglou, Eliza McGill Univ Peter Guo Hua Fu Sch Architecture Montreal PQ H3A 0C2 Canada

ISBN: (纸本)9789811912801;9789811912795

As computer interfaces, electronic screens monopolize architects' interaction with computational media. However, despite their instrumental role in architectural practice, hardly anyone would think of screens as instruments, although they originated from a scientific instrument: the oscilloscope. The oscilloscope was the first device for the graphic display of electrical signals. It soon surpassed its initial scientific visualization purposes to evolve into early computer graphics screens up until the 1970s. This paper looks at the oscilloscope's transition from an electrical instrument to an electronic display to explore how the instrumentality of displays was altered, and why it became less obvious. Two historical uses of oscilloscopes are examined. The first is the work of American artist Ben F. Laposky, who employed early oscilloscopes to perform "light drawings" in the 1950s. The second is a 1964 proposal by computer scientists Ivan and Bert Sutherland at the Massachusetts Institute of Technology for an oscilloscope display that would "perform drawings." The two cases are analyzed using the interpretive concept of body techniques, borrowed from sociology. Body techniques allow for an empirical analysis of screen's instrumentality that does not distinguish between representations and operations, but rather includes representations to an irreducible series of embodied actions. This paper argues that examining the embodiment of graphic techniques can lead to an innovative understanding of design-computing techniques as co-shaped by both the affordances of novel technologies and the visual culture of existing design practices.

关键词： Oscilloscope computer graphics computer art Design techniques Computational design history and theory

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TPCG 2014 - theory and practice of computer graphics, Proceedings

TPCG 2014 - Theory and Practice of Computer Graphics, Procee...

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2014 EG UK theory and practice of computer graphics Conference, TPCG 2014

ISBN: (纸本)9783905674705

The proceedings contain 8 papers. The topics discussed include: gap-sensitive segmentation and restoration of digital images;variations on image reconstruction: weighted back projection and Fourier expectation maximization;modeling of clouds from a hemispherical image;visual analysis of hurricane data using joint contour net;fast and simple agglomerative LBVH construction;geological orientation measurements using an iPad: method comparison;comparative visualization and analysis of time-dependent, 2D foam simulation data;and a study on glyph-based visualization with dense visual context.

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Visual analytics for large networks: theory, art and practice 21

Visual analytics for large networks: Theory, art and practic...

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ACM SIGGRAPH 2021 Courses - International Conference on computer graphics and Interactive Techniques, SIGGRAPH 2021

作者： Bednarz, Tomasz Mathews, Alex Filonik, Daniel Hughes, Rowan T. Chen, Dawei Zhu, Liming

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数据新闻可视化研究:理论与实践

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计算机辅助设计与图形学学报 2024年第6期36卷 915-927页

作者：程梦琴周葆华陈思明复旦大学大数据学院上海200433 复旦大学新闻学院上海200433

进入大数据时代,信息更迭迅速的新闻业中出现了越来越多数据可视化的元素,可视化技术在新闻领域中占有越来越重要的位置.文中从数据新闻实际案例中整理了50个有代表性的使用可视化的数据新闻项目,基于数据新闻理论与实践2方面提出一种... 详细信息

进入大数据时代,信息更迭迅速的新闻业中出现了越来越多数据可视化的元素,可视化技术在新闻领域中占有越来越重要的位置.文中从数据新闻实际案例中整理了50个有代表性的使用可视化的数据新闻项目,基于数据新闻理论与实践2方面提出一种分类框架,从数据新闻的生产和理解2个层面分析可视化发挥的作用.在数据新闻生产层面,讨论了角色分工、可视化类型以及在不同新闻流程中的生产技术;在用户理解数据新闻层面,对促进理解的数据新闻特性、用户的交互模式和用户认知进行讨论.所提框架有助于更好地理解数据新闻与可视化的结合过程,并且总结出相应框架内的问题和工作模式.最后讨论可视化在数据新闻中的发展方向,人们可以在新型传播方式下,通过虚拟现实等技术手段与可视化进行交互,把握自动生成技术的机遇;该领域也会面临一些问题与挑战,如权衡交互的复杂程度等,为数据新闻从业者提出一些将数据新闻与可视化结合的建议.

关键词：数据新闻可视化故事叙述人机交互

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What are Table Cartograms Good for Anyway? An Algebraic Analysis

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computer graphics FORUM 2021年第3期40卷 61-73页

作者： McNutt, A. Univ Chicago Dept Comp Sci Chicago IL 60637 USA

Unfamiliar or esoteric visual forms arise in many areas of visualization. While such forms can be intriguing, it can be unclear how to make effective use of them without long periods of practice or costly user studies. In this work we analyze the table cartogram-a graphic which visualizes tabular data by bringing the areas of a grid of quadrilaterals into correspondence with the input data, like a heat map that has been "area-ed" rather than colored. Despite having existed for several years, little is known about its appropriate usage. We mend this gap by using Algebraic Visualization Design to show that they are best suited to relatively small tables with ordinal axes for some comparison and outlier identification tasks. In doing so we demonstrate a discount theory-based analysis that can be used to cheaply determine best practices for unknown visualizations.

关键词： CCS Concepts • Human-centered computing → Visualization design and evaluation methods Visualization theory concepts and paradigms

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AI-assisted Automated Pipeline for Length Estimation, Visual Assessment of the Digestive Tract and Counting of Shrimp in Aquaculture Production 16

AI-assisted Automated Pipeline for Length Estimation, Visual...

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16th International Joint Conference on computer Vision, Imaging and computer graphics theory and Applications (VISIGRAPP) / 16th International Conference on computer Vision theory and Applications (VISAPP)

作者： Hashisho, Yousif Dolereit, Tim Segelken-Voigt, Alexandra Bochert, Ralf Vahl, Matthias Fraunhofer Inst Comp Graph Res IGD Joachim Jungius Str 11 D-18059 Rostock Germany State Res Ctr Agr & Fisheries Mecklenburg Vorpomm Inst Fisheries Sudstr 8 D-18375 Born Germany

ISBN: (纸本)9789897584886

Shrimp farming is a century-old practice in aquaculture production. In the past years, some improvements of the traditional farming methods have been made, however, it still involves mostly intensive manual work, which makes traditional farming a neither time nor cost efficient production process. Therefore, a continuous monitoring approach is required for increasing the efficiency of shrimp farming. This paper proposes a pipeline for automated shrimp monitoring using deep learning and image processing methods. The automated monitoring includes length estimation, assessment of the shrimp's digestive tract and counting. Furthermore, a mobile system is designed for monitoring shrimp in various breeding tanks. This study shows promising results and unfolds the potential of artificial intelligence in automating shrimp monitoring.

关键词： computer Vision Image Processing AI Deep Learning Shrimp Aquaculture

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