Applications and research trends of digital human models in the manufacturing industry

Virtual reality(VR)has been widely used in various manufacturing industries,and VR-based virtual manufacturing has received significant attention in the current intelligent manufacturing era.Digital human models(DHMs)are essential for virtual manufacturing applications.Additionally,researching new applications of DHMs has developed into an important academic research field.This paper aims to identify the applications and research trends of DHMs in the manufacturing industry and to provide a reference for the continued development of virtual manufacturing and DHMs.We selected a total of 49 related articles from a large number of articles published between 2014 and 2019.The applications of DHMs in the manufacturing industry are analyzed from different perspectives and various relevant technical limitations are discussed.The results indicate that the applications of DHMs differ significantly between different types of fields.The automotive industry is the main application field for DHMs,and assembly/maintenance simulations and evaluations are the main application types.Additionally,there are still some limitations in the establishment of virtual environments,motion control,and DHM evaluation that should be addressed.Finally,research trends in the application of DHMs are illustrated and discussed,including the planning and assessment of human-robot collaboration systems,the combination of DHMs and augmented reality,and improved motion planning for DHMs.In summary,the application of DHMs can improve the realism and effectiveness of virtual manufacturing,and DHMs will be more widely and deeply studied and applied in various manufacturing industries in the near future.

Development and application of digital assistive teaching system for anatomy

Background Anatomy is a required course for all medicine-related industries.In recent decades,the teaching quality and effect of anatomy have been compromised by factors including a decrease in human body specimens,dampened enthusiasm for the discipline,reduced teaching hours of anatomy,scale expansion of medical education,and obstacles in performing field autopsies and observations.Methods Based on China's digitalized visible human research achievements,this article extracts the boundary information of anatomic structures from tomographic images,constructs three dimensional(3D)digital anatomical models with authentic texture information,and develops an anatomy assistive teaching system for teachers and students based on the knowledge points of anatomy,to meet the anatomy teaching requirements of different majors at various levels.Results This scientific,complete,and holistic system has produced over 60003D digital anatomical models,5000 anatomy knowledge points,50 anatomical operation videos,and 150 micro demonstration classes,with teaching contents for different majors and levels,such as systematic anatomy,topographic anatomy,sectional anatomy,anatomy of motion,and virtual anatomical operation table.Ranging from network terminals,desktops,touchscreen 3D displays,desktops,and projection 3D volumetric displays to augmented reality,its diversified interactive forms meet the requirements for a learning environment in different settings.Conclusions With multiple teaching and learning links covered,such as teaching environment,teaching resources,instructional slides,autonomous learning,and learning effect evaluation,this novel teaching system serves as a vital component and a necessary resource in anatomy teaching and functions as an important supplement to traditional anatomy teaching.Applied and promoted in most medical colleges and schools in China,this system has been recognized and approved by anatomy teachers and students,and plays a positive role in guaranteeing the effect and quality of anatomy teaching.

Functional Virtual Prototyping in Vehicle Chassis Reform Analysis and Improvement Design

The contribution of functional virtual prototyping to vehicle chassis development is presented. The different topics that we took into consideration were reform analysis and improvement design during the vehicle chassis development. A frame of coordinates based on the digital-model was established, the main CAE analy- sis methods, multi-body system dynamics and finite element analysis were applied to the digital-model build by CAD/CAM software. The method was applied in the vehicle chassis reform analysis and improvement design, all the analysis and design projects were implemented in the uniform digital-model, and the development was carried through effectively.

Building Metaverse Digital Humanities Labs:Strategies and Challenges in Higher Education

The integration of metaverse technologies within the academic sphere is redefining the landscape of digital humanities research and education.This study examines the current state and future prospects of metaverse digital humanities laboratories in higher education institutions,highlighting their importance and the challenges they face.The research underscores the significance of these laboratories in fostering interdisciplinary collaboration,enhancing educational experiences,and promoting cultural preservation through digital means.The metaverse digital humanities laboratories are seen as crucial platforms for innovation,providing immersive environments that facilitate the application of advanced digital tools in humanities research.The study identifies key challenges,including the need for robust hardware infrastructure,the complexity of technology integration,data management concerns,and the necessity for ethical frameworks that address privacy and intellectual property rights.It also emphasizes the importance of user experience,interdisciplinary collaboration,and the development of a comprehensive talent cultivation system that aligns with the digital humanities.Strategies for the construction and development of these laboratories are proposed,such as accelerating metaverse infrastructure development,promoting the transformation of traditional digital humanities laboratories,and establishing mechanisms for data protection and resource sharing.The research also calls for the enhancement of user experiences through personalized services and the cultivation of talent through interdisciplinary educational programs.In conclusion,the metaverse digital humanities laboratories represent a strategic frontier in academic innovation,offering transformative potential for research and education in the humanities.The study provides a roadmap for the development of these laboratories,suggesting a comprehensive approach that addresses technological,pedagogical,ethical,and financial challenges,and emphasizing the importance of strategic planning and interdisciplinary collaboration in realizing their full potential.

Recent advances on virtual human synthesis

Virtual human is a digital representation of the geometric and behavioral property of human beings in the virtual environment generated by computer. The research goal of virtual human synthesis is to generate realistic human body models and natural human motion behavior. This paper introduces the development of the related researches on these two topics, and some progresses on example based human modeling and motion synthesis, and their applications in Chinese sign language teaching, computeraided sports training and public safety problem studying. Finally, some hot research topics in virtual human synthesis are presented.

Modelling Virtual Realities:Virtual Reality as a Transformative Technology for the Humanities

This paper proposes bridging virtual reality(VR)and the humanities,creating a valuable outcome through the implementation of virtual realities in teaching environments and through the reflection on the narratives and content in the process of modelling in the humanities.Current state of the art technologies offer many people the opportunity to experience VR without having to purchase expensive devices.This results in a rapidly growing number of different content to explore,and a diversification of overall concepts.Looking at VR as a form of representation and as a means of reproducing narratives,many potential research questions also for the(digital)humanities arise.This includes observing,exploring and comprehending the modelling of virtual worlds.It is of key importance to consider the process of creation,which is a process of modelling done by different individuals with different disciplinary backgrounds.Several courses at the University of Cologne were offered in which virtual worlds for the narration of theatre plays as well as other narratives were modelled by the students.The experiences from these courses will be used to analyse critically the use of VR in the humanities.

Machine learning for digital try-on:Challenges and progress

Digital try-on systems for e-commerce have the potential to change people’s lives and provide notable economic benefits.However,their development is limited by practical constraints,such as accurate sizing of the body and realism of demonstrations.We enumerate three open challenges remaining for a complete and easy-to-use try-on system that recent advances in machine learning make increasingly tractable.For each,we describe the problem,introduce state-of-the-art approaches,and provide future directions.

3-Dimensional Body Measurement Technology

3 - dimensional body measurement technology, the basis of developing high technology in industry, accelerates digital development of aplparel industry. This paper briefly introduces the history of 3 - dimensional body measurement technology, and recounts the principle and primary structure of some types of 3 - dimensional automatic body measurement system. With this understanding, it discusses prospect of 3- dimensional CAD and virtual technology used in apparel industry.

Application of three-dimensional digitalized reconstruction of latissimus dorsi myocutaneous flap

Developments of digital technology and three-dimensional(3D)reconstruction allowed a precise description of anatomic structures.With the introduction of Visible Human Project and Virtual Chinese Human(VCH)techniques,more detailed anatomic images could be obtained.Digitized visible models of these structures can be applied as a useful tool in clinical training.The aim of this study was to reconstruct the normal structures of thoracodorsal artery in 3D images and to establish the digitized visible models of latissimus dorsi myocutaneous(LDM)flap.The cross-sectional images from the four VCH datasets were reviewed to study LDM and thoraco-dorsal artery structures on a section-by-section basis.Next,two adult fresh cadaver specimens were perfused with lead oxide-gelatine mixture and subject to radio-graphic CT scanning on their torsos.The cross-sectional images from the CT images were reviewed to study thor-acodorsal artery structures.Three-dimensional computer-ized reconstructions of LDM flap structures were conducted from these datasets by using Amira 3.1(TGS)software respectively.The 3D reconstructed visible models established from these datasets perfectly displayed the anatomic characteristics of LDM flap.

ChatGPT赋能图书馆虚拟数字人:技术优势、应用场景与实践路径

ChatGPT为虚拟数字人在图书馆服务的应用赋予了更大的想象空间和更多的可能性。文章通过总结ChatGPT的运行原理与技术优势,提出ChatGPT赋能图书馆虚拟数字人的主要应用场景,如虚拟馆员智能问答、虚拟讲解员、阅读推广服务以及特殊人群无障碍服务;建议图书馆从技术支撑、信息资源、服务场景以及管理制度等方面出发,探索ChatGPT赋能图书馆虚拟数字人的实践路径,以更好地实现智慧服务。

虚实相融与价值共创:虚拟数字人技术赋能图书馆智慧服务

虚拟数字人是元宇宙的核心数字资产和交互载体入口,已在泛娱乐、医疗、金融等诸多行业落地发展,图书馆界尽早研究和开展虚拟数字人服务,有助于推进图书馆元宇宙生态构建。文章在系统梳理虚拟数字人理论与实践进展的基础上,分析虚拟数字人对图书馆服务的影响,提出虚拟宣讲、参考咨询、用户教育、沉浸阅读和“阅读疗愈”等五大图书馆虚拟数字人智慧服务场景,探讨虚拟数字人在图书馆智慧服务中的应用障碍与发展对策。

基于虚拟仿真技术的服装智能制造应用研究

由于传统的服装制造不能很好地满足市场需求,因此对虚拟仿真技术在服装智能制造中的应用进行研究,实现服装企业转型升级,确保企业健康发展。服装虚拟设计包括仿真人体建模、虚拟服装建模、3D仿真优化和构建应用平台。采用非接触式测量获取人体三维数据,构建虚拟三维人体模型,同时将服装设计师的设计意图进行深层次挖掘,获得三维虚拟服装模型。通过纹理特征映射、碰撞检测、真实感增强和场景构建来优化服装设计过程,并将其应用于服装个性化设计与虚拟试穿中,对提升服装企业的智能制造水平和市场竞争力具有一定的参考价值。

虚拟数字人新范式:SIGGRAPH ASIA 2023电影制作相关研究综述

本文综述了2023年SIGGRAPH ASIA会议中虚拟数字人领域前沿技术成果,探讨了最新技术在电影摄制和产业发展方面的作用与影响,旨在为电影从业者提供虚拟数字人相关技术的前沿动态,促进计算机图形学(CG)与电影艺术跨学科的融合与应用。本文从计算机图形学与电影制作角度出发,沿着几何造型、运动控制和动作捕捉三个技术路线梳理分析了会议相关成果的技术内核及其在电影行业的应用潜力,随后以宏观视野评估了上述技术路线的发展特点,归纳出虚拟数字人技术整体发展趋势,分析思考了虚拟数字人技术与电影制作之间的耦合关系。

元宇宙虚拟数字人技术在文化创意展示上的应用研究

随着元宇宙概念的兴起,虚拟数字人技术在文化创意展示领域展现出巨大的应用潜力。该文旨在探讨如何应用该技术增强文化体验的沉浸感和互动性,并推动文化产品的创新。通过分析元宇宙的核心技术和虚拟数字人的特点,阐述元宇宙虚拟数字人技术在传播传统文化、创新艺术形式及提升观众互动体验方面的应用,并探讨了其对文化产业商业模式的潜在影响。

虚拟数字人的传播风险与社会行动者治理

虚拟数字人日益嵌入社会结构当中,加剧当下社会的媒介化程度,在其迅速应用于内容生产领域的同时,还出现了内容失当和传播伦理等问题。虚拟数字人是非人之物(non-human),但该场景中的社会行动者——中之人既是自然人,又为内容把关模式的创新提供一个可行的视角。中之人被视为法律责任的主体之一,作为新型把关主体,其隐匿于后台,把关的创新体现在主体、对象、策略和价值引导等方面,呈现出中介化和弥散化的特点,相关主体性的建构还需与主流文化同频共振,以求把关主体的价值观和“善治”有机融合。

数字时代表演者权的扩张--基于虚拟数字人的分析

表演者权随着经济、社会、文化和技术的发展不断演进,而虚拟数字人的崛起给表演者权制度带来了新的挑战。虚拟表演是数字时代表演数字化的全新形式,也是作为“演员”的虚拟数字人通过自己的动作、姿势、表情、声音等呈现作品的方式,能够纳入表演者权制度框架中。虚拟数字人则是技术和身体融合后愈发具有人格化特征的新型主体,应当属于著作权法意义上的表演者。承认虚拟数字人作为表演者的独立地位,保留其精神权利,并通过职务表演确定经济权利的归属与行使,以推动法律对技术与现实进行回应。

基于虚拟教研室的人文地理学课程教学改革研究

虚拟教研室是在数字化时代下课程教学改革的重要助推平台.从人文地理课程教学现状出发,结合虚拟教研室优势,阐述虚拟教研室建设对人文地理教学课程改革的必要性,提出人文地理学课程教学的“六化”改革路径与“四体”保障机制.

虚拟数字人技术在数字化教育中的创新应用与策略研究

数字化技术的不断进步为数字技术在教育教学应用、教师数字胜任能力以及教育公平性方面的应用带来了挑战。虚拟数字人为应对挑战提供了新的策略,包括教学辅助与互动学习、个性化学习路径的设计、提高教师在线教学资料的质量以及虚拟实验室与模拟场景的应用等方面,反映了虚拟数字人在优化教育教学过程中的重要作用和前景。实践案例表明,虚拟数字人能够有效提升学生的学习体验和教学效果。然而,其应用也面临一些挑战,如技术兼容性、数据隐私保护等问题。针对这些问题,应从技术创新、教育理念和方法的改善、教育资源的整合这几个方面采取措施。

元宇宙视角下虚拟数字人赋能职业教育课程改革探索——以《新媒体营销》课程为例

课程改革是职业教育实现高质量发展的关键着力点。近年来,元宇宙新业态和数字技术的高速发展给职业教育创新发展带来了新的思路,虚拟数字人技术在课程改革的应用是职业教育数字化转型的重要实践,有助于提升教师团队的数字化素养,重塑教学新样态,解决职业教育实训课程和校企合作过程中的“短板”难题,实现职业教育课程改革数字化转型与创新教育的双向赋能,促进产教融合走深走实。目前该技术在职业院校的应用实践中存在着技术资源的调配缺乏统一的规划、教学资源配套建设滞后等问题,需要职业院校以重塑教学新样态丰富教学呈现方式,提升实训教学质量;坚持“1+N+M”多情境应用,拓宽实训教学内容开发的空间;培养学生的发散思维,提升创新能力。展望未来,建议继续加大重视力度,统筹规划,从技术规划、教师激励、资源配套建设等方面推动虚拟数字人技术赋能课程改革的进程。

ChatGPT与数字孪生教师融合:模型、应用及反思

在人工智能、大数据及虚拟现实等技术快速发展的时代,个性化教学的需求愈加迫切。ChatGPT与数字孪生技术作为新型人工智能技术,使大规模个性化教学成为现实。基于此,文章探索了ChatGPT与数字孪生教师融合的可行性,构建包括人体形象、情感支持、动作控制、智能代理四个模块的ChatGPT与数字孪生教师融合模型,分析此融合模型在教学、教研、管理、评价四个场景的应用,进而设计乡村教学场景应用框架。最后,探讨ChatGPT与数字孪生教师融合模型在教育领域面临的技术、情感和伦理挑战,提出未来ChatGPT与数字孪生教师融合模型应用可从合理运用技术、促进情感交互、恪守伦理规范三个方面进行改进,以保证该融合模型应用于教学的可行性,从而推动教学个性化,拓展其在教育领域的应用与创新。