The Development of an Autonomously Interacting Avatar within a Virtual Reality Environment for Researching the Anticipation Ability in Martial Arts

虚拟现实环境中自主交互化身的开发，用于研究武术中的预期能力

• 批准号: 252070407
• 负责人: Professor Dr. Guido Brunnett
• 金额: --
• 依托单位: Bereich Sportwissenschaft (SPW)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/252070407?language=en
• 关键词: Development; Autonomously; Interacting; Avatar; within

One goal of sports scientific research in the field of anticipation is to create realistic environments. It has been shown that virtual environments that are very similar to real settings evoke realistic reactions in athletes. Previous studies have confirmed that Virtual Reality (VR) can be successfully applied for this purpose. Therein, Virtual Reality has many advantages over the presentation by two dimensional projection screens and computer displays. Amongst the first and foremost advantages of VR is the third dimension that generates a feeling of spatial perception within the users. Further benefits of VR are the high standard of ecological validity, standardization, controllability as well as the possibility to manipulate selected parameters (e.g. temporal and spatial occlusion). However, as far as we know, there is still a big disadvantage in regards to the created virtual opponents. Thus, with these virtual systems it is neither possible to respond to the movements or actions of a real athlete, nor are they interactive. In cooperation with the department of computer science of the Chemnitz University of Technology an interactive virtual opponent shall be developed to overcome these deficits. Based on a rule system, a novel avatar is generated which inherits the necessary short reaction times and which can respond to the real athlete. In addition, the avatar will have a most realistic appearance. From the computer graphics point of view there is still a deficit in the research of the availability of a workflow from the capturing of movement data up to an interactive animation of the virtual opponents skeleton and a realistic presentation of its mesh (the digital humans outward appearance). Moreover, it shall be evaluated in the present project whether a hybrid method of computation (computations done on the graphical processing unit (GPU) and the central processing unit (CPU) simultaneously) can be used to realize our goals.Beyond that, the interactive opponent has to be evaluated in regards to its versatility. More specifically, the evaluation will contain a comparison of reactions of a) an opponent in real life, b) the not interactive opponent and c) the here generated interactive opponent.Finally, the results acquired in the course of the present project will be evaluated concerning the question whether the concept of an autonomously interacting avatar can be successfully adapted to similar types of martial arts.

在预期领域体育科学研究的目标之一是创造现实的环境。已经表明，与真实环境非常相似的虚拟环境引起了运动员中现实的反应。先前的研究证实，虚拟现实（VR）可以成功地用于此目的。在其中，虚拟现实通过二维投影屏幕和计算机显示比演示文稿具有许多优势。在VR的第一个和最重要的优势中，在用户内部产生空间感知的第三维度。 VR的进一步好处是生态有效性，标准化，可控性以及操纵选定参数的可能性（例如时间和空间闭塞）的可能性。但是，据我们所知，关于创建的虚拟对手仍然存在很大的劣势。因此，借助这些虚拟系统，既不能响应真正运动员的运动或行动，也不能够互动。与Chemnitz技术大学计算机科学系合作，应开发互动虚拟对手来克服这些缺陷。基于规则系统，生成了一种新颖的头像，该化身继承了必要的短反应时间并可以对真正的运动员做出反应。此外，头像将具有最现实的外观。从计算机图形的角度来看，从捕获移动数据的捕获到虚拟对手骨骼的互动动画以及其网格（数字人物外观）的互动动画的可用性仍存在赤字。此外，应在本项目中评估是否可以使用混合计算方法（在图形处理单元（GPU）和中央处理单元（CPU）同时使用混合方法来实现我们的目标。更具体地说，评估将包含a）对手在现实生活中的反应的比较，b）无互动性对手和c）此处产生的交互式对手。从本文中，将对本项目的结果进行评估，以评估该问题是否可以成功地适应了与类似类型的the类类型的自主相互作用的avatar的概念。