Human-Machine Symbiosis:Philosophical Reflection on Virtual Human

Virtual human is the simulation of human under the synthesis of virtual reality,artificial intelligence,and other technologies.Modern virtual human technology simulates both the external characteristics and the internal emotions and personality of humans.The relationship between virtual human and human is a concrete expression of the modern symbiotic relationship between human and machine.This human-machine symbiosis can either be a fusion of the virtual human and the human or it can cause a split in the human itself.

Cyber-Physical-Social System Between a Humanoid Robot and a Virtual Human Through a Shared Platform for Adaptive Agent Ecology

Two artificial agents(a humanoid robot and a virtual human) are enriched with various similar intelligence,autonomy, functionalities and interaction modalities. The agents are integrated in the form of a cyber-physical-social system(CPSS) through a shared communication platform to create a social ecology. In the ecology, the agents collaborate(assist each other) to perform a real-world task(search for a hidden object)for the benefits of humans. A robot-virtual human bilateral trust model is derived and a real-time trust measurement method is developed. The role of taking initiative in the collaboration is switched between the agents following a finite state machine model triggered by bilateral trust, which results in a mixedinitiative collaboration. A scheme is developed to evaluate the performance of the agents in the ecology through the CPSS.The results show that the robot and the virtual human perform satisfactorily in the collaboration through the CPSS. The results thus prove the effectiveness of the real-world ecology between artificial agents of heterogeneous realities through a shared platform based on trust-triggered mixed-initiatives. The results can help develop adaptive social ecology comprising intelligent agents of heterogeneous realities to assist humans in various tasks through collaboration between the agents in the form of a CPSS.

Human Friendly Interface Design for Virtual Fitting Room Applications on Android Based Mobile Devices

This paper presents an image processing design flow for virtual fitting room (VFR) applications, targeting both personal computers and mobile devices. The proposed human friendly interface is implemented by a three-stage algorithm: Detection and sizing of the user's body, detection of reference points based on face detection and augmented reality markers, and superimposition of the clothing over the user's image. Compared to other existing VFR systems, key difference is the lack of any proprietary hardware components or peripherals. Proposed VFR is software based and designed to be universally compatible as long as the device has a camera. Furthermore, JAVA implementation on Android based mobile systems is computationally efficient and it can run in real-time on existing mobile devices.

Human Centered Design in Multi-agent Virtual Environment

The efficient and reliable human centered design of products and processes is a major goal in manufacturing industries for numerous human factors must be taken into account during the entire life cycle of products. A multi-agents intelligent design system is presented for manufacturing process simulation and products＇ ergonomic analysis. In virtual design environment, the virtual human with high-level intelligence performs tasks＇ operation autonomously and shows optimum posture configuration with ergonomic assessment results in real time. The functions are realized by intelligent agents architecture based on a modem approach derived from fuzzy multi-objects decision-making theory. A case study is presented to demonstrate the feasibility of the suggested methodology.

The Skin Deformation of a 3D Virtual Human

This paper presents a skin deformation algorithm for creating 3D characters or virtual human models. The algorithm can be applied to rigid deformation, joint dependent localized deformation, skeleton driven deformation, cross contour deformation, and free-form deformation （FFD）. These deformations are computed and demonstrated with examples and the algorithm is applied to overcome the difficulties in mechanically simulating the motion of the human body by club-shape models. The techniques described in this article enables the reconstruction of dynamic human models that can be used in defining and representing the geometrical and kinematical characteristics of human motion.

Forecasting display technique of human in network virtual environment

The simulation of human in the distributed virtual environment is different from the simulation of vehicle. Due to the human’s many joints, to implement the real time performance of the interaction between the virtual human and the environment, the quantity of information broadcasted in the network will be increased. So with the growing of the quantity of virtual human added to the network, the network burthen would augment rapidly. Therefore, for the simulation of virtual human this paper divides organically the motion parts of the body, which makes those body parts that often interact with the environment are described according to the joints while other parts are described according to the action information. Simultaneity, this paper adopts Dead Reckoning to reduce the quantity of information needed by maintaining the reality motion of virtual human. The experiment indicates that the forecasting display technique can efficiently reduce the network burthen and enhance the interaction of virtual human.

STUDY ON HUMAN-COMPUTER SYSTEM FOR STABLE VIRTUAL DISASSEMBLY

The cooperative work between human being and computer based on virtual reality (VR) is investigated to plan the disassembly sequences more efficiently. A three-layer model of human-computer cooperative virtual disassembly is built, and the corresponding human-computer system for stable virtual disassembly is developed. In this system, an immersive and interactive virtual disassembly environment has been created to provide planners with a more visual working scene. For cooperative disassembly, an intelligent module of stability analysis of disassembly operations is embedded into the human-computer system to assist planners to implement disassembly tasks better. The supporting matrix for stability analysis of disassembly operations is defined and the method of stability analysis is detailed. Based on the approach, the stability of any disassembly operation can be analyzed to instruct the manual virtual disassembly. At last, a disassembly case in the virtual environment is given to prove the validity of above ideas.

Application of Question and Answering on Virtual Human Dialogue:a Review and Prediction

Nowadays,virtual human(VH) is becoming a hot research topic in virtualization.VH dialogue can be categorized as an application of natural language processing(NLP) technology,since it is relational to question and answering(QA) technologies.In order to integrate these technologies,this paper reviews some important work on VH dialogue,and predicts some research points on the view of QA technologies.

Intelligent Interfaces: Pedagogical Agents and Virtual Humans

Little by little, we are entering the new era, intelligent interfaces are absorbing us more and more every day, and artificial intelligence makes its presence in a stealthy way. Virtual humans that represent an evolution of autonomous virtual agents;they are computer programs and in the future capable of carrying out different activities in certain environments. They will give the illusion of being human;they will have a body, and they will be immersed in an environment. They will have a set of senses that will allow them: 1) Sensations and therefore associated expressions;2) Communication;3) Learning;4) Remembering events, among others. By integrating the above, they will have a personality and autonomy, so they will be able to plan with respect to objectives;allowing them to decide and take actions with their body, in other words, they will count on awareness. The applications will be focused on environments that they will inhabit, or as interfaces that will interact with other systems. The application domains will be multiple;one of them being education. This article shows the design of OANNA like an avatar with the role of pedagogical agent. It was modeled as an affective-cognitive structure related to the teaching-learning process linked to a pedagogical agent that represents the interface of an artilect. OANNA, has the necessary animations for intervention within the teaching-learning process.

Eye-shaped keyboard for dual-hand text entry in virtual reality

We propose an eye-shaped keyboard for high-speed text entry in virtual reality (VR), having the shape of dual eyes with characters arranged along the curved eyelids, which ensures low density and short spacing of the keys. The eye-shaped keyboard references the QWERTY key sequence, allowing the users to benefit from their experience using the QWERTY keyboard. The user interacts with an eye-shaped keyboard using rays controlled with both the hands. A character can be entered in one step by moving the rays from the inner eye regions to regions of the characters. A high-speed auto-complete system was designed for the eye-shaped keyboard. We conducted a pilot study to determine the optimal parameters, and a user study to compare our eye-shaped keyboard with the QWERTY and circular keyboards. For beginners, the eye-shaped keyboard performed significantly more efficiently and accurately with less task load and hand movement than the circular keyboard. Compared with the QWERTY keyboard, the eye-shaped keyboard is more accurate and significantly reduces hand translation while maintaining similar efficiency. Finally, to evaluate the potential of eye-shaped keyboards, we conducted another user study. In this study, the participants were asked to type continuously for three days using the proposed eye-shaped keyboard, with two sessions per day. In each session, participants were asked to type for 20min, and then their typing performance was tested. The eye-shaped keyboard was proven to be efficient and promising, with an average speed of 19.89 words per minute (WPM) and mean uncorrected error rate of 1.939%. The maximum speed reached 24.97 WPM after six sessions and continued to increase.

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。

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。

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。

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。

基于贪婪算法的云计算数据块节能存储仿真

针对云数据储存能量消耗大的问题,提出基于贪婪算法的云计算数据块节能存储方法。建立具有用户访问层、核心服务层和服务管理层的云计算架构,了解数据块产生过程和储存环境;将物理机利用率、能源消耗量和主机储存能力作为节能储存的约束条件,将待储存的数据块封装为虚拟机,利用贪婪算法描述虚拟机部署问题,构建贪婪算法下虚拟机分配环境;计算单个物理机和整个数据中心的数据块储存能力和资源请求能力,综合考虑虚拟机分配的相关向量,运算数据储存时的能量消耗;以总体能量最小为目标函数,将虚拟机分为主模块与备用模块,通过设置虚拟机状态转换规则来减少储存开销,实现节能储存。实验结果表明,上述方法在数据储存过程中能够有效减少服务器开启数量,节省储存功率,达到节能目的。

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VR一体机的古生物三维虚拟复原软件系统设计

古生物化石复原对于古生物、古地理、古气候等研究具有重大意义,但存在模型复原制作难度大、工艺成本高等问题。本文基于VR一体机硬件平台,利用虚拟现实技术开发了古生物三维虚拟复原软件系统。通过建模软件3DMax联合ZBrush精雕复原实物模型,基于三维引擎Unity3D与SteamVR协同开发了还原度高的三维空间程序,打造了交互物体展示和场景漫游控制相结合的“沉浸式”拟真三维操作环境。经HTCVIVE VR一体机对软件系统测试结果显示,软件运行流畅,具有很强的通用性,模型导入方便,交互功能便于二次开发扩展。

新一代载人飞船卫生区功能性空间优化设计研究

目的开展中国新一代载人飞船卫生区的空间优化研究,探索功能性空间优化设计方法,提高载人飞船空间利用效率,同时提升航天员的舒适性体验。方法以中国空间站卫生区的功能和结构为依据,探讨中国新一代载人飞船卫生区功能组件的构成;依据航天员在微重力状态下使用卫生区的动作与姿态,建立卫生区空间布置的初步概念;根据卫生区的舱壁布局、微重力下航天员视野区域及最佳操作空间分析,开展相关功能组件建模,基于卫生区的人机交互节点,利用JACK软件进行仿真分析与评估,结合评估结果改进设计方案,并通过追踪航天员活动轨迹产生的包络体完成卫生区的空间优化。结论通过对比中国新一代载人飞船卫生区优化前后设计方案的舒适性、可操作性和空间尺寸,验证了功能性空间优化设计方法的有效性和可靠性,为载人航天器舒适性与集成化设计提供了参考。

以“虚”促实,虚拟数字人技术赋能外贸营销探索研究

AI(人工智能)技术与外贸深度融合,推动着跨境贸易模式的智能化升级,虚拟数字人技术在外贸营销领域的应用逐步兴起,为解决外贸企业在海外短视频、跨境直播、海外社交媒体营销等数字化营销过程的痛点问题提供了新思路,激发外贸新活力。本文分析了虚拟数字人技术赋能外贸营销的作用机理,论述了该技术在外贸营销领域实现规模化应用所必须具备的四个条件,对其在外贸营销过程中的主要应用场景进行深入的剖析,明确在外贸领域的独特应用价值,强调技术的持续进步将推动虚拟数字人应用发挥出更来更大的赋能潜力。