Thomas Vincent, Weistroffer Vincent, Fraisse Philippe
{"title":"User Embodiment Comparison of Semi-Autonomous and Fully-Captured Avatar Movements in Virtual Reality","authors":"Thomas Vincent, Weistroffer Vincent, Fraisse Philippe","doi":"10.1109/ICVR51878.2021.9483831","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483831","url":null,"abstract":"We describe in this paper a user study in the context of animated virtual human to compare the user self-perception of well known semi-autonomous Avatar and full-body tracked Avatar. We aim at highlighting the advantages and limitations of those methods during various walking phases. The participants walked inside 4 simulated environments with different obstacles. Those results are quantified through a virtual reality sickness questionnaire and a new questionnaire specialized on user perception and enjoyment of his avatar lower part. This study shows positive results for the semi-autonomous Avatar especially in a cluttered environment. The users maintain the same efficiency with both methods, they have no sickness issues after more than 45 minutes inside the simulation and they present better enjoyment results for environment with complex obstacles.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133810623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Project MultiLeap: Fusing Data from Multiple Leap Motion Sensors","authors":"Tomás Novácek, Christian Marty, M. Jiřina","doi":"10.1109/ICVR51878.2021.9483819","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483819","url":null,"abstract":"Finding a simple and precise way to control the virtual environment is one of the goals of a lot of humancomputer interaction research. One of the approaches is using a Leap Motion optical sensor, which provides hand and finger tracking without the need of any hand-held device. However, the Leap Motion system currently supports only one sensor at the time.To overcome this limitation, we proposed a set of algorithms to combine the data from multiple Leap Motion sensors to increase the precision and the usability of the hand tracking. First, we suggested a way how to improve the calibration of the current hand pose alignment proposed by Leap Motion. Then, we proposed an approach to fuse the tracking data from multiple Leap Motion sensors to provide more precise interaction with the virtual world. For this, we implemented our very own algorithm for computing the confidence level of the tracking data that can be used to distinguish which Leap Motion sensor detects the tracked hands best. We implemented those algorithms into our MultiLeap library.We also created two demo scenes that we used to validate the correctness of our work – one for evaluation of the fusing algorithms and one for mimicking the interaction with control panels in a helicopter cockpit.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128818156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multi-scale Image Decomposition Using a Local Statistical Edge Model","authors":"Kin-Ming Wong","doi":"10.1109/ICVR51878.2021.9483837","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483837","url":null,"abstract":"We present a progressive image decomposition method based on a novel non-linear filter named Sub-window Variance filter. Our method is specifically designed for image detail enhancement purpose; this application requires extraction of image details which are small in terms of both spatial and variation scales. We propose a local statistical edge model which develops its edge awareness using spatially defined image statistics. Our decomposition method is controlled by two intuitive parameters which allow the users to define what image details to suppress or enhance. By using the summed-area table acceleration method, our decomposition pipeline is highly parallel. The proposed filter is gradient preserving and this allows our enhancement results free from the gradient-reversal artefact. In our evaluations, we compare our method in various multi-scale image detail manipulation applications with other mainstream solutions.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123859213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spatial Knowledge Acquisition in Virtual and Physical Reality: A Comparative Evaluation","authors":"D. Monteiro, Xian Wang, Hai-Ning Liang, Yiyu Cai","doi":"10.1109/ICVR51878.2021.9483809","DOIUrl":"https://doi.org/10.1109/ICVR51878.2021.9483809","url":null,"abstract":"Virtual Reality (VR) head-mounted displays (HMDs) have been studied widely as tools for the most diverse kinds of training activities. One particular kind that is the basis for many real-world applications is spatial knowledge acquisition and navigation. For example, knowing well by heart escape routes can be an important factor for firefighters and soldiers. Prior research on how well knowledge acquired in virtual worlds translates to the real, physical one has had mixed results, with some suggesting spatial learning in VR is akin to using a regular 2D display. However, VR HMDs have evolved drastically in the last decade, and little is known about how spatial training skills in a simulated environment using up-to-date VR HMDs compare to training in the real world. In this paper, we investigate how people trained in a VR maze compare against those trained in a physical maze in terms of recall of the position of items inside the environment. While our results did not find significant differences in time performance for people who experienced the physical and those who trained in VR, other behavioral factors were different.","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124937872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[ICVR 2021 Front cover]","authors":"","doi":"10.1109/icvr51878.2021.9483705","DOIUrl":"https://doi.org/10.1109/icvr51878.2021.9483705","url":null,"abstract":"","PeriodicalId":266506,"journal":{"name":"2021 IEEE 7th International Conference on Virtual Reality (ICVR)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125509349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}