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Special Interest Group on Computer Graphics and Interactive Techniques Conference - Educator's Forum, SIGGRAPH 2023

作者： McLaughlin, Tim Moore, Tracey L Thibault, Aaron Peter Wright, Kim Boddie Roberts, Hira Tariq Seo, Jinsil Hwaryoung Orsatti, Jason M. School of Performance Visualization & Fine Arts Texas A&M University United States Digital Media Arts Program School of Architecture Prairie View A&M University United States The Gearbox Entertainment Co. United States National Network of Education Research Practice Partnerships Institute for Urban Research Rice University United States

ISBN: (纸本)9798400701467

This talk reports on an approach to computer science education for pre- and early-adolescents in which the goal is the formation of occupational identity with visual computing developed collaboratively between a large game studio, a research-intensive university, and a historically black college/university (HBCU). This ongoing project takes place in a rural public-school setting in the United States. Our project is structured around the idea that identity-centered user-content creation projects can positively influence student self-professed performance and interest in science, technology, engineering, art, and math (STEAM) related subjects and interest in STEAM careers. The projects in our curriculum engage students in real-time 3DCG coding and asset creation activities commonly associated with game development. We describe the process of working with school administrators and teachers to create a technology-infused environment in which remote external partners play a collaborative role in curriculum development and delivery. This work has significance for efforts to remotely engage with rural students at an age when occupational identity development is forming and thus develop a potential to expand the pathway for underrepresented minorities. © 2023 Owner/Author.

关键词： Students

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HYPER-REALIST RENDERING: A THEORETICAL FRAMEWORK

arXiv

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arXiv 2024年

作者： Akleman, Ergun Kurt, Murat Akleman, Derya Bruins, Gary Deng, Sitong Subramanian, Meena Visual Computing & Computational Media School of PVFA Computer Science and Engineering College of Engineering Texas A&M University College StationTX77831 United States International Computer Institute Ege University Izmir Turkey Department of Statistics Texas A&M University College StationTX77831 United States Visualization Program Department of Architecture Texas A&M University College StationTX77831 United States Department of Visualization Texas A&M University College StationTX77831 United States

This is the first paper in a series on hyper-realist rendering. In this paper, we introduce the concept of hyper-realist rendering and present a theoretical framework to obtain hyper-realist images. We are using the term Hyper-realism as an umbrella word that captures all types of visual artifacts that can evoke an impression of reality. The hyper-realist artifacts are visual representations that are not necessarily created by following logical and physical principles and can still be perceived as representations of reality. This idea stems from the principles of representational arts, which attain visually acceptable renderings of scenes without implementing strict physical laws of optics and materials. The objective of this work is to demonstrate that it is possible to obtain visually acceptable illusions of reality by employing such artistic approaches. With representational art methods, we can even obtain an alternate illusion of reality that looks more real even when it is not real. This paper demonstrates that it is common to create illusions of reality in visual arts with examples of paintings by representational artists. We propose an approach to obtain expressive local and global illuminations to obtain these stylistic illusions with a set of well-defined and formal methods. Our formalism is based on four principles: (1) colors and textures must be represented by algebraically complete structures, (2) we should allow impossible and inconsistent shapes in scene concepts, (3) we have to decompose illumination and shading, and (4) we must build our shading functions using statistic-based methods instead of physics-based methods. We claim that these principles allow us to develop simple methods since we can avoid algebraic inconsistencies. Using such simple methods, it can be possible to significantly speed up modeling and rendering algorithms by focusing only on essential elements that can create illusions of reality. © 2024, CC BY.

关键词： Formal methods

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Review ofFish Vaccines: Health Management for Sustainable Aquaculture. Edited byPreetham Elumalai,Kim Thompson,Sreeja Lakshmi. Boca Raton, FL, USA: CRC Press,2023,262pp., eBook £108.00, ISBN 978-1-032-48341-2

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Journal of Fish Diseases 2023年第12期46卷

作者： Clara Artha Febriana Yunita Messe Graduate Program Faculty of Biology Gadjah Mada University Yogyakarta Indonesia Contribution: Conceptualization Investigation Methodology Data curation Writing - original draft Resources Formal analysis Project administration Supervision Validation Visualization Funding acquisition Software Contribution: Validation Formal analysis Writing - original draft

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Mechanically interlocked luminescent molecules

Responsive Materials

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Responsive Materials 2023年第2期1卷

作者： Shu Zhang Yi An Xu-Man Chen Ivan Aprahamian Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing China Contribution: Validation (equal) Visualization (equal) Writing - original draft (lead) Contribution: Visualization (equal) Contribution: Validation (equal) Department of Chemistry 6128 Burke Laboratory Dartmouth College Hanover NH USA Contribution: Writing - review & editing (equal) Materials Science Graduate Program Kent State University Kent OH USA Ivan Aprahamian and Quan Li. Contribution: Funding acquisition (lead) Project administration (lead) Writing - review & editing (equal)

Research into mechanically interlocked luminescent molecules (MILMs), which is the overlapping of mechanically interlocked molecules and luminescent molecules, has intensified over the past few decades. These studies have tapped into and exploited the benefits of mechanically interlocked structures to achieve outstanding and stimulus-responsive optical characteristics, resulting in the synthesis of new types of luminescent systems and exploring their potential uses in different applications. This review describes the salient attributes of MILMs and showcases some of the latest advancements in this field of research.

关键词： luminescent molecules mechanically interlocked molecules organic chemistry supramolecular chemistry

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Has the Adaptation-Mitigation Binary Outlived Its Value? Indigenous Ways of Knowing Present an Alternative

Community Science

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Community Science 2022年第2期1卷

作者： Anna L. Ullmann Karim-Aly S. Kassam School of Life Sciences Technische Universität München Freising Germany Contribution: Conceptualization Methodology Validation Writing - original draft Writing - review & editing Visualization Supervision Department of Natural Resources and the Environment American Indian and Indigenous Studies Program Cornell University Ithaca NY USA K.-A. S. Kassam Contribution: Conceptualization Methodology Validation Investigation Writing - review & editing Visualization Supervision Project administration Funding acquisition

Community-level actions addressing anthropogenic climate change are paramount to survival. However, there are limitations to the current binary approach which considers adaptation and mitigation as mutually exclusive actions. Drawing from research in the Pamir Mountains of Tajikistan, this commentary demonstrates: (a) Indigenous knowledge, emerging from a deep connectivity to habitat, cumulative over generations, and empirically-based, is the foundation of ecological calendars; (b) ecological calendars build anticipatory capacity, the ability to envision possible and sustainable futures, for anthropogenic climate change; and (c) this anticipatory approach engages adaptive and mitigative actions to climate change working in tandem to ensure wellbeing and food security. This paper maintains that the adaptation-mitigation continuum involves foresight and action today in preparation for future change. Furthermore, context-specific ecological calendars represent an effective mechanism for communities to build and retain knowledge across generations and deep connections to their habitat. Finally, further modeling needs to be undertaken with participation and leadership from Indigenous and rural communities to understand how they use the adaptation-mitigation continuum for anticipatory action to develop multiple optimal solutions to address environmental change. Adaptation and mitigation are related components of anticipatory capacity which informs a community's action to secure its livelihood and food systems. Anticipatory capacity, the ability to envision sustainable futures under conditions of anthropogenic climate change, needs to be grounded in the local ecological and sociocultural context to be effective. It relies on various ways of knowing, that consider the complex connectivity of relations between humans and their habitat within a specific context. In this reflective essay, a strong case is made for Indigenous knowledge systems as providing a foundational base f

关键词： Anthropogenic Climate Change localized knowledge ecological calendars anticipatory capacity social-ecological systems Pamir Mountains

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Artificial neural network-based method to classify sedimentary rocks 12

Artificial neural network-based method to classify sedimenta...

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12th International Conference on Sensing Technology, ICST 2018

作者： Figueiredo, Rodrigo Marques Veronez, Mauricio Roberto Wohnrath, Francisco Manoel Da Silva, Marcio Rosa Gonzaga, Luiz Kupssinsku, Lucas Silveira Bordin, Fabiane Brum, Diego Cazarin, Caroline Lessio Graduate Program in Geology Unisinos University Saõ Leopoldo Brazil Advanced Visualization and Geoinformatics Laboratory Unisinos University Saõ Leopoldo Brazil Graduate Program in Electrical Engineering Unisinos University Saõ Leopoldo Brazil Graduate Program in Applied Computing Unisinos University Saõ Leopoldo Brazil Rio de Janeiro Brazil

ISBN: (纸本)9781538651476

In a geological study, an important step is to determine the type of sedimentary rock or its grain size. Such a determination requires accurate analysis in the field or in a laboratory. As the size of the study area grows, this activity can be time consuming and error prone because the number of specialists working under rigid criteria also increases. This paper proposes a novel methodology to classify grain size using unique wavelength reflectance data and artificial neural networks. The results indicate that the proposed method can be reliably used in the field. © 2018 IEEE.

关键词： Neural networks

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3D data acquisition using stereo camera 38

3D data acquisition using stereo camera

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38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018

作者： Kirsten, Evandro Inocencio, Leonardo Campos Veronez, Maurício Roberto Da Silveira, Luiz Gonzaga Bordin, Fabiane Marson, Fernando Pinho Advanced Visualization and Geoinformatics Laboratory UNISINOS Saõ Leopoldo RS Brazil Graduate Program on Applied Computing UNISINOS Av. UNISINOS 950 Saõ Leopoldo RS93022-750 Brazil

ISBN: (纸本)9781538671504

Computer vision systems allow digital reconstruction of targets by capturing information through remote sensors such as video cameras and scanners. In this context, the objective of this work was to evaluate the capacity and quality of three-dimensional reconstruction of static targets using the ZED stereoscopic camera. For this goal, we took images of several environments and objects with different surfaces, textures, lighting, distances and acquisition speeds. The results were compared with high-density and high precision point clouds obtained from the targets using a Leica Viva TS15 total station. The data were processed in the CloudCompare software to calculate the displacement between the models generated by the camera and the total station. Under certain circumstances, this technology is able to reconstruct three-dimensional objects and environments with an error of a few centimeters. © 2018 IEEE.

关键词： Computer vision

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Analysis of positional and geometric accuracy of objects in survey with unmanned aerial vehicle (UAV) 38

Analysis of positional and geometric accuracy of objects in ...

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38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018

作者： Soares, Gabriel Inocencio, Leonardo Campos Veronez, Maurício Roberto Da Silveira, Luiz Gonzaga Bordin, Fabiane Marson, Fernando Pinho Advanced Visualization and Geoinformatics Laboratory UNISINOS São Leopoldo RS Brazil Graduate Program on Applied Computing UNISINOS Av. UNISINOS 950 São Leopoldo RS93022-000 Brazil

ISBN: (纸本)9781538671504

This study aimed the analysis of the positional and geometric accuracy of objects in orthomosaics obtained through different unmanned aerial vehicle (UAV) data processing software covering an area located within Universidade do Vale do Rio dos Sinos - UNISINOS in São Leopoldo, RS. A total of nine ground control points (GCP) and twenty checkpoints were surveyed in order register and classify the processed orthomosaics according to the cartographic accuracy standard - Padrão de Exatidão Cartográfica (PEC). Four software was employed to process the UAV data: Pix4D mapper, Agisoft PhotoScan, Menci APS and Bentley Context Capture. The results obtained from each software were compared and identified the smallest distortions when processing with and without ground control points. The flight was executed at a height of 90m with 60% sidelap and 80% overlap using an ST800 UAV equipped with a Sony NEX-7 small format non-metric camera with 24 megapixels resolution. The software GeoPEC was used to classify the orthomosaics according to PEC. For data processed with ground control points all orthomosaics were classified “Class A” in 1/500 scale, however, only Menci APS did not present a trend line via t-student test. On the other hand, Menci APS presented the worst results without the ground control points. In processing with GCP, all orthomosaics obtained optimum results with an approximated error of 2,5 m2 about 0,03% of the area. © 2018 IEEE

关键词： Cartographic Accuracy Standard Ground Control Points Orthomosaic Unmanned Aerial Vehicle

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Functional organization of extracellular hyaluronan, CD44, and RHAMM

Proteoglycan Research

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Proteoglycan Research 2023年第2期1卷

作者： Mary K. Cowman Eva A. Turley Department of Biomedical Engineering Tandon School of Engineering New York University New York New York USA Department of Orthopedic Surgery Grossman School of Medicine New York University New York New York USA Eva A. Turley London Regional Cancer Program London Health Sciences Centre Lawson Health Research Institute Room A4-931A 790 Commissioners Rd East London ON N6A 4L6 Canada. Contribution: Conceptualization Formal analysis Methodology Project administration Visualization Writing - original draft Writing - review & editing London Regional Cancer Program London Health Sciences Centre Lawson Health Research Institute London Ontario Canada Department of Oncology Schulich School of Medicine and Dentistry Western University London Ontario Canada Department of Biochemistry Schulich School of Medicine and Dentistry Western University London Ontario Canada Department of Surgery Schulich School of Medicine and Dentistry Western University London Ontario Canada Contribution: Conceptualization Data curation Formal analysis Funding acquisition Investigation Methodology Project administration Resources Visualization Writing - original draft Writing - review & editing

The integral membrane protein CD44 is constitutively expressed in most tissues, and is the primary cell surface receptor for hyaluronan (HA). HA is the key scaffolding organizer of proteoglycans and receptors in the extracellular matrix. CD44 is expressed as cell type-specific and context-specific alternatively spliced isoforms with variable glycosylation and interreceptor interactions. CD44 plays a critical role in the organization and patterning of domains in the cell membrane, achieved through linking the cortical actin cytoskeleton with the pericellular HA matrix. This functional and spatial organization of CD44 and HA maintains a protective and homeostatic cellular microenvironment. Tissue injury and cellular stress result in HA fragmentation and unconventional export of the CD44 coreceptor, RHAMM, which collectively alter the homeostatic organization of CD44/HA. The resulting interplay among HA, HA fragments, CD44 and RHAMM triggers cellular responses such as cell motility that contribute to tissue repair, and disease processes. Here we review current understanding of the structural biology of HA, CD44, and RHAMM, and provide an overview of their known functional organization and patterning at the cell surface. Changes in their surface organization act as sensors for detecting danger, and are critical to the understanding of consequent intracellular signaling and response mechanisms to cellular stress.

关键词： CD44 extracellular matrix hyaluronan pericellular matrix RHAMM

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Bio-techno-signature Monitoring and Communication Guideposts for Extraterrestrial Life

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Research Notes of the AAS 2023年第3期7卷 55-55页

作者： Michele Mekel Karen Keifer-Boyd Matthew D. Lamb Lauren Stetz Associate Director of the Bioethics Program Associate Teaching Professor of Bioethics and Humanities Affiliate Faculty of the Rock Ethics Institute and Penn State Law and Joint Appointment in Humanities at Penn State Medical School The Pennsylvania State University USA Professor of Art Education and Women's Gender and Sexuality Studies and Affiliate Faculty of Bioethics The Pennsylvania State University USA Associate Teaching Professor of Communication Arts and Sciences and Affiliate Faculty in the Rock Ethics Institute The Pennsylvania State University USA Chair of the National Art Education Association Data Visualization Working Group and Adjunct Associate Professor of Art Education University of the Arts USA

Attendees at the First Penn State SETI Symposium collaborated to develop guideposts for monitoring for and communicating with extraterrestrial life. Over the course of six hours of moderated, dialogic, art-based inquiry in 2022 June, four foundational questions catalyzed the creation of a set of ethics-informed guideposts: Who speaks for Earth, and who should speak for Earth?; What can be communicated, and what is communicated?; What should be communicated?; and How can it be communicated? The 10 resulting parameters offer ethical navigation for examining bio- and techno-markers.

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