N. Diolaiti, G. Niemeyer, F. Barbagli, J. Salisbury, C. Melchiorri
{"title":"The effect of quantization and Coulomb friction on the stability of haptic rendering","authors":"N. Diolaiti, G. Niemeyer, F. Barbagli, J. Salisbury, C. Melchiorri","doi":"10.1109/WHC.2005.130","DOIUrl":"https://doi.org/10.1109/WHC.2005.130","url":null,"abstract":"Rendering stiff virtual objects remains a core challenge in the field of haptics. A study of this problem is presented, which relates the maximum achievable object stiffness to the elements of the control loop. In particular, we examine how the sampling rate and quantization of position measurements interact with the inertia, natural viscous, and Coulomb damping of the haptic device. The resulting stability criterion generalizes previously known conditions. Simulations and experimental results support the theoretical analysis based on the passivity and describing function approaches.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"623 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132753799","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":"Telemaque, a new visuo-haptic interface for remediation of dysgraphic children","authors":"B. Hennion, E. Gentaz, Philippe Gouagout, F. Bara","doi":"10.1109/WHC.2005.125","DOIUrl":"https://doi.org/10.1109/WHC.2005.125","url":null,"abstract":"The aim of this paper is to present a new visuo-haptic interface for remediation of dysgraphic children. This interface allows teaching the children to reproduce a letter according to a standard not only static (i.e. its correct shape) but also dynamic (i.e. the rules of motor production). A new specific handwriting static and dynamic font was built. Using this font, four exercises were carried out for each letter. First, the sculpturing of a letter was designed to familiarize the child with the haptic pen and the static and the global shape of a letter. Second, the circuit game was focused on the correct order of production of a letter. Third, the dynamical tracing exercise was dedicated to dynamical aspect of production of a letter. Fourth, the blindfolded recognition exercise of letters was focused on the static and dynamical aspects of a letter. This exercise required retrieving the letter in memory from dynamical haptic cues. The effects of these exercises on a dysgraphic child were currently assessed.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133430600","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":"General proxy-based haptics for volume visualization","authors":"K. L. Palmerius, B. Gudmundsson, A. Ynnerman","doi":"10.1109/WHC.2005.62","DOIUrl":"https://doi.org/10.1109/WHC.2005.62","url":null,"abstract":"We present a general, proxy-based approach to volume haptics founded upon the notion of 'haptic primitives'. Haptic modes each representing a different aspect of volumetric data, are created by defining sets of haptic primitives which reflect the local properties of the data. The proxy position for every time-frame in the haptic loop is found by balancing the force feedback in the haptic instrument with the force from the haptic primitives involved. The presented general framework allows for rapid development of haptic feedback modes for volumetric data. The approach also allows, in contrast to previous work on proxy-based volume haptics, combination of non-orthogonal constraints and thus allows free combination of various modes in haptic exploration of multivariate data. We demonstrate the effectiveness of our approach through the implementation of five different haptic modes.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114481799","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":"The Maxima Haptics Package - a tool for symbolic analysis of haptics and teleoperation","authors":"Göran A. V. Christiansson","doi":"10.1109/WHC.2005.132","DOIUrl":"https://doi.org/10.1109/WHC.2005.132","url":null,"abstract":"The Maxima Haptics Package is a free software package for symbolic analysis of linear models of haptic devices and teleoperators. From a mechanical model of the haptic device, the slave robot and a formulation of the controller, the package calculates the well known \"hybrid matrix\" representation of the whole system. From the acquired hybrid matrix, the linear performance measures and external device characteristics can be calculated, e.g. force bandwidth and free air inertia. The package provides a common language for the haptic community for exchange of symbolic models, and tools to enhance understanding and learning. The Maxima Haptics Package is released to the public for the first time ever during the WorldHaptics Conference 2005.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114601099","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":"Human-machine admittance and transparency adaptation in passive user interaction with a haptic interface","authors":"S. McJunkin, Yanfang Li, M. O'Malley","doi":"10.1109/WHC.2005.76","DOIUrl":"https://doi.org/10.1109/WHC.2005.76","url":null,"abstract":"This paper addresses human adaptation to changes in coupling impedance and force amplitude during passive user induced (PUI) interactions with a haptic interface. PUI interactions are characterized as event-based haptic interactions or haptic recordings that are replayed to the user. In the study, virtual environments are displayed to passive users with variable coupling stiffness and force amplitudes, and transparency bandwidth and human-machine admittance are measured. Results indicate that transparency bandwidth and the human-machine admittance do not change significantly for permutations of force amplitudes and coupling impedances, nor do they vary significantly across users. The reason for this invariance is that, during a PUI interaction, users tend approach a similar displacement profile. As a result, all users will have similar apparent admittance and transparency. The findings give sufficient justification for the use of universal compensators that improve transparency bandwidth, and that can be designed based solely on a priori transparency measurements for a typical user.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"1047 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123145095","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}
A. Pillarisetti, Waqas Anjum, J. Desai, G. Friedman, A. Brooks
{"title":"Force feedback interface for cell injection","authors":"A. Pillarisetti, Waqas Anjum, J. Desai, G. Friedman, A. Brooks","doi":"10.1109/WHC.2005.57","DOIUrl":"https://doi.org/10.1109/WHC.2005.57","url":null,"abstract":"Manual pronuclei injection and intracytoplasmic sperm injection (ICSI) requires long training and has low success rates primarily due to poor control over the injection force. Consequently, there is a need for quantification of forces during biological cell injection and for an automated cell injection system, which can provide force feedback to the operator improving the success rate of the injection task. We have developed a force feedback interface, which has the capability of measuring forces in the range of /spl mu/N-mN and provide a haptic display of the cell injection forces. The force sensor has been integrated with the biomanipulation system to detect forces in real time. Experiments were performed on two different varieties of egg cells to demonstrate the success in measuring forces in the range in /spl mu/N-mN. Our experimental results indicate the cell puncturing forces were consistent and the operator was able to feel the celt injection forces.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122774522","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":"Modeling the effect of Rayleigh damping on the stability of real-time finite element models","authors":"S. Marlatt, S. Payandeh","doi":"10.1109/WHC.2005.93","DOIUrl":"https://doi.org/10.1109/WHC.2005.93","url":null,"abstract":"The relationship between Rayleigh damping and the critical integration step size of linear explicit finite element models using centered difference integration is explored. From experimental results, an analytical formula is derived that extends the Courant condition to include Rayleigh damping, allowing real-time computation of stable time-step sizes for viscously damped finite element models for haptic simulations.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128496680","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}
M. Salada, J. Colgate, Peter M. Vishton, E. Frankel
{"title":"An experiment on tracking surface features with the sensation of slip","authors":"M. Salada, J. Colgate, Peter M. Vishton, E. Frankel","doi":"10.1109/WHC.2005.22","DOIUrl":"https://doi.org/10.1109/WHC.2005.22","url":null,"abstract":"This paper describes the last of three experiments that investigate relative motion between a surface and the fingertip (slip) as part of a larger program of research on \"fingertip haptics\". To confirm the suspicion that tangential displacement of the skin during contact contribute to the perception of feature movement, this experiment tasks subjects to follow a feature on a surface that displays the path tangent given three different factors: the first factor is the absence of tangential displacements 1) within the contact area and 2) on the whole finger pad. The second factor explores different surface speeds. Finally, we explore different rates of path curvature. A custom mechanical filter placed between the skin and the moving surface enables the selective elimination of tangential contact displacements. Thirty-three subjects completed the tracking test, showing that the absence of tangential forces from slip severely impairs performance. However, results reveal heightened performance with the filter in a \"loose\" configuration. The performance suggests that subjects do not use shape alone to track features, but some combination of shape and tangential forces (due to friction) together to perceive the movement of small features.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131120722","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":"Research on the mathematical model of spatiotemporal dual-channel electrotactile tele-presence","authors":"Shuai Liguo, Kuang Yinghui","doi":"10.1109/WHC.2005.112","DOIUrl":"https://doi.org/10.1109/WHC.2005.112","url":null,"abstract":"In this paper, the principle and the model of spatiotemporal dual-channel electrotactile representation are described, and the relationship between tolerance limit and the stimulation current is also discussed. The analysis on spatiotemporal dual-channel model in electrotactile tele-presence shows that the whole tactile perception consists of two parts, one is the base volume of tactile perception, and another is the fluctuatuant amount. To obtain a comfortable electrotactile sensation, a limit to the fluctuauant amount is requested.","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115972755","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":"Graphics-to-haptics: a tool for developing haptic virtual environments","authors":"Eric Acosta, B. Temkin","doi":"10.1109/WHC.2005.64","DOIUrl":"https://doi.org/10.1109/WHC.2005.64","url":null,"abstract":"Current haptic application development tools typically require considerable programming efforts in order to make an existing surface-based graphical virtual environment (G-VE) touchable. In this paper we describe a graphics-to-haptics (G/sub 2/H) tool that provides a framework for developing the largest possible haptic virtual environments (H-VE) for stable haptic applications. G/sub 2/H automatically converts a G-VE into a haptic application with no additional programming via a real-time visual software development process of 1) importing G-VEs, 2) setting haptic and visual properties for models, 3) selecting graphics and haptic rendering algorithms, 4) representing the haptic device position in the virtual space, 5) interfacing different haptic devices to the virtual environment, and 6) testing and modify the virtual environment to ensure real-time stability of the created haptic application. The tested H-VE can be used as the foundation for other applications such as surgical simulators [Acosta, E et al., (2004), (2002)].","PeriodicalId":117050,"journal":{"name":"First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122517605","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}