Computer Animation and Virtual Worlds最新文献_第2页

A Control Simulation of Multiple Bubbles for Representing Desired Shapes 表示所需形状的多个气泡的控制仿真

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-23 DOI: 10.1002/cav.70037

Naruo Nishio, Syuhei Sato, Kaisei Sakurai, Keiko Nakamoto

引用次数: 0

Talk With Socrates: Relation Between Perceived Agent Personality and User Personality in LLM-Based Natural Language Dialogue Using Virtual Reality 与苏格拉底对话：基于llm的虚拟现实自然语言对话中感知代理人格与用户人格的关系

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-22 DOI: 10.1002/cav.70033

Mehmet Efe Sak, Sinan Sonlu, Uğur Güdükbay

{"title":"Talk With Socrates: Relation Between Perceived Agent Personality and User Personality in LLM-Based Natural Language Dialogue Using Virtual Reality","authors":"Mehmet Efe Sak, Sinan Sonlu, Uğur Güdükbay","doi":"10.1002/cav.70033","DOIUrl":"https://doi.org/10.1002/cav.70033","url":null,"abstract":"<div>\u0000 \u0000 <p>Large Language Models (LLMs) offer almost immediate human-like quality responses to user queries. Conversational agent systems support natural language dialogues utilizing LLM backends in combination with Text-to-Speech (TTS) and Automatic Speech Recognition (ASR) technologies, enabling life-like characters in virtual environments. This study investigates the relationship between user personality and perceived agent personality in LLM-based natural language dialogue. We adopt a Virtual Reality (VR) setting where the user can talk with the agent that assumes the role of Socrates, the famous philosopher. To this end, we utilize a three-dimensional (3D) avatar model resembling Socrates and use specific LLM prompts to get stylistic answers from OpenAI's Chat Completions Application Programming Interface (API). Our user study measures the agent's personality and the system's ease of use, quality, realism, and immersion concerning the user's self-reported personality. The results suggest that the user's conscientiousness, extraversion, and emotional stability have a moderate effect on certain personality factors and system qualities. User conscientiousness affects the perceived ease of use, quality, and realism, while user extraversion affects perceived agent conscientiousness, system realism, and immersion. Additionally, the user's emotional stability correlates with perceived extraversion and agreeableness.</p>\u0000 </div>","PeriodicalId":50645,"journal":{"name":"Computer Animation and Virtual Worlds","volume":"36 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MemorIA, an Architecture for Creating Interactive AI Historical Agents in Educational Contexts MemorIA，一个用于在教育环境中创建交互式AI历史代理的架构

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-22 DOI: 10.1002/cav.70032

Antoine Oger, Geoffrey Gorisse, Sylvain Fleury, Olivier Christmann

{"title":"MemorIA, an Architecture for Creating Interactive AI Historical Agents in Educational Contexts","authors":"Antoine Oger, Geoffrey Gorisse, Sylvain Fleury, Olivier Christmann","doi":"10.1002/cav.70032","DOIUrl":"https://doi.org/10.1002/cav.70032","url":null,"abstract":"<p>This article presents the architecture of MemorIA, an integrative system that combines existing AI technologies into a coherent educational framework for creating interactive historical agents, with the aim of fostering students' learning interest. MemorIA generates animated digital portraits of historical figures, synchronizing facial expressions with synthesized speech to enable natural conversations with students. The system leverages NVIDIA Audio2Face for real-time facial animation with first-order motion model for portrait manipulation, achieving fluid interaction through low-latency audio-visual streaming. To assess our architecture in a field situation, we conducted a pilot study in middle school history classes, where students and teachers engaged in direct conversation with a virtual Julius Caesar during Roman history lessons. Students asked questions about ancient Rome, receiving contextually appropriate responses. While qualitative feedback suggests a positive trend toward increased student participation, some weaknesses and ethical considerations emerged. Based on this assessment, we discuss implementation challenges, suggest architectural improvements, and explore potential applications across various disciplines.</p>","PeriodicalId":50645,"journal":{"name":"Computer Animation and Virtual Worlds","volume":"36 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cav.70032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fuzzy Sampling With Qualified Uniformity Properties for Implicitly Defined Curves and Surfaces 隐定义曲线和曲面具有合格均匀性的模糊采样

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-21 DOI: 10.1002/cav.70022

Mingxiao Hu, Linlin Ge, Xujie Li

引用次数: 0

Research on Multi-Feature Fusion Shadow Puppet Motifs Generation Based on CSPMotifsGAN and Cultural Heritage Preservation 基于CSPMotifsGAN和文化遗产保护的多特征融合皮影图案生成研究

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-21 DOI: 10.1002/cav.70047

Hui Liang, Rui Wang

引用次数: 0

Toward Fluoroscopy Guided Robotic Needle Insertion for Radio Frequency Ablation 射频消融术中透视引导机器人插针的研究

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-19 DOI: 10.1002/cav.70025

Thuc-Long Ha, Juan Verde, Julien Bert, Hadrien Courtecuisse

{"title":"Toward Fluoroscopy Guided Robotic Needle Insertion for Radio Frequency Ablation","authors":"Thuc-Long Ha, Juan Verde, Julien Bert, Hadrien Courtecuisse","doi":"10.1002/cav.70025","DOIUrl":"https://doi.org/10.1002/cav.70025","url":null,"abstract":"<p>This article presents a fluoroscopy image-based registration method along with a comprehensive protocol for robotic needle insertion in radiofrequency ablation (RFA) to treat liver cancer. The proposed method uses real-time fluoroscopic images acquired from a C-ARM system and integrates an inverse finite element (FE) simulation to compute robotic commands for accurate and adaptive needle steering. The registration procedure is fully automated and involves the injection of multiple radiopaque markers into the liver, enabling precise anatomical registration and targeted tumor localization. A key challenge addressed in this work is the integration of this image-based registration with the inverse biomechanical simulation used to guide the robot during insertion. We describe how registration constraints can be mapped onto the surface of the biomechanical model to ensure consistent alignment between image data and robotic actuation. Designed to be adaptable to varying levels of radiologist expertise and applicable across a wide range of tumor locations, this method provides a robust and versatile solution for improving the accuracy and safety of minimally invasive liver cancer treatments.</p>","PeriodicalId":50645,"journal":{"name":"Computer Animation and Virtual Worlds","volume":"36 3","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cav.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Control Mapping Strategies on Task Performance, Motivation, and Engagement of Participants in a VR Upper Limb Training Task: A Randomized Controlled Trial 虚拟现实上肢训练任务中控制映射策略对任务表现、动机和参与的影响：一项随机对照试验

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-05-16 DOI: 10.1002/cav.70019

Binhao Huang, Jian Lv, Ligang Qiang

引用次数: 0

Augmented Reality in Engineering Education: An Application for Electronic Circuits Laboratory 增强现实技术在工程教育中的应用：电子电路实验室

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-04-21 DOI: 10.1002/cav.70018

Sanaa Iriqat, Fahri Vatansever

{"title":"Augmented Reality in Engineering Education: An Application for Electronic Circuits Laboratory","authors":"Sanaa Iriqat, Fahri Vatansever","doi":"10.1002/cav.70018","DOIUrl":"https://doi.org/10.1002/cav.70018","url":null,"abstract":"<div>\u0000 \u0000 <p>Engineering education faces challenges in effectively conveying complex theoretical knowledge and practical skills. Traditional teaching tools like smart boards, education kits, web pages, and computer-based simulators often fall short in bridging the gap between theory and hands-on application. Augmented reality (AR) has emerged as a promising solution to fill this educational gap by providing immersive and interactive learning experiences. In this study, an AR-based application has been developed for operational amplifiers. Agile methodology and the ADDIE learning development model were used in the system development and instructional design of this application. This application, which requires only a smartphone and a breadboard, detects the circuit marker when users point their smartphone camera at it. After detection, the user can interact with the interface to choose whether the system shows input–output signals for different component values, the output voltage formula, a 3D model, or a brief lecture about the used amplifier. These virtual elements are overlaid onto the real-world breadboard based on the user's selection. This integration of AR technology provides an immersive, interactive learning experience, allowing students to visualize and interact with circuit elements in real time.</p>\u0000 </div>","PeriodicalId":50645,"journal":{"name":"Computer Animation and Virtual Worlds","volume":"36 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LFGarNet: Loose-Fitting Garment Animation With Multi-Attribute-Aware Graph Network 基于多属性感知图网络的宽松服装动画

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-04-16 DOI: 10.1002/cav.70017

Peng Zhang, Bo Fei, Meng Wei, Jiamei Zhan, Kexin Wang, Youlong Lv

{"title":"LFGarNet: Loose-Fitting Garment Animation With Multi-Attribute-Aware Graph Network","authors":"Peng Zhang, Bo Fei, Meng Wei, Jiamei Zhan, Kexin Wang, Youlong Lv","doi":"10.1002/cav.70017","DOIUrl":"https://doi.org/10.1002/cav.70017","url":null,"abstract":"<div>\u0000 \u0000 <p>Current AI animation generation methods excel in tight-fitting clothing scenarios but struggle with deformation distortion and the gradual loss of wrinkles over extended simulations in loose-fitting clothing. To address these issues, we propose a multi-attribute-aware Graph Network. This approach mitigates the gradual loss of wrinkles by dividing animation sequences into multiple stages based on motion categories, recognizing that identical body postures can cause different clothing deformations due to varying motion tendencies. In each stage, we first restore coarse, globally guided deformations based on the motion category, followed by enhancing detailed features. We observed that garments within the same sport category exhibit similar local wrinkles and that the degree of fit to the body varies significantly across different regions of the same garment. We introduce two specific clothing attributes: “looseness” and “deformity,” which relate to local wrinkles and have physical significance. A clothing attribute encoder perceives these attributes and constructs a clothing graph model to estimate detailed features. Our method effectively handles clothing deformations across various motion types, including extreme postures, with qualitative and quantitative analyses confirming its effectiveness.</p>\u0000 </div>","PeriodicalId":50645,"journal":{"name":"Computer Animation and Virtual Worlds","volume":"36 2","pages":""},"PeriodicalIF":0.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Behavioral Gait Biometrics in VR: Is the Use of Synthetic Samples Able to Increase Person Identification Metrics? VR中的行为步态生物识别：合成样本的使用是否能够增加人的识别指标？

IF 0.9 4区计算机科学

Computer Animation and Virtual Worlds Pub Date : 2025-04-10 DOI: 10.1002/cav.70016

Aleksander Sawicki

引用次数: 0