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Ralph L. Hollis
Person information
- affiliation: Carnegie Mellon University, Pittsburgh, USA
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2020 – today
- 2021
- [c66]Roberto Shu, Ralph L. Hollis:
Momentum based Whole-Body Optimal Planning for a Single-Spherical-Wheeled Balancing Mobile Manipulator. IROS 2021: 3221-3226
2010 – 2019
- 2019
- [c65]Roberto Shu, Ralph L. Hollis:
Development of a Humanoid Dual Arm System for a Single Spherical Wheeled Balancing Mobile Robot. Humanoids 2019: 499-504 - [c64]Fabian Sonnleitner, Roberto Shu, Ralph L. Hollis:
The Mechanics and Control of Leaning to Lift Heavy Objects with a Dynamically Stable Mobile Robot. ICRA 2019: 9264-9270 - 2017
- [c63]Robert A. MacLachlan, Ralph L. Hollis, Joseph N. Martel, Louis A. Lobes Jr., Cameron N. Riviere:
Toward Improved Electromagnetic Tracking for Handheld Robotics. ICMRE 2017: 75-80 - [c62]Robert A. MacLachlan, Ralph L. Hollis, Branislav Jaramaz, Cameron N. Riviere
, Joseph N. Martel, Kenneth L. Urish:
Multirate Kalman filter rejects impulse noise in frequency-domain-multiplexed tracker measurements. IEEE SENSORS 2017: 1-3 - 2016
- [c61]Greg Seyfarth, Ankit Bhatia, Olaf Sassnick
, Michael Shomin, Masaaki Kumagai, Ralph L. Hollis:
Initial results for a ballbot driven with a spherical induction motor. ICRA 2016: 3771-3776 - [c60]Robert A. MacLachlan, Nicholas Parody, Shohin Mukherjee, Ralph L. Hollis, Cameron N. Riviere
, Joseph N. Martel, Louis A. Lobes Jr.:
Electromagnetic tracker for active handheld robotic systems. IEEE SENSORS 2016: 1-3 - [c59]Jun Zhang, Ralph L. Hollis:
A 2-DOF manipulator for micro-assembly in a minifactory. ROBIO 2016: 1582-1587 - 2015
- [j14]Bing Wu, Roberta L. Klatzky, Randy Lee
, Vikas Shivaprabhu, John M. Galeotti, Mel W. Siegel, Joel S. Schuman
, Ralph L. Hollis, George D. Stetten:
Psychophysical Evaluation of Haptic Perception Under Augmentation by a Handheld Device. Hum. Factors 57(3): 523-537 (2015) - [c58]Ankit Bhatia, Masaaki Kumagai, Ralph L. Hollis:
Six-stator spherical induction motor for balancing mobile robots. ICRA 2015: 226-231 - [c57]Bhaskar Vaidya, Michael Shomin, Ralph L. Hollis, George Kantor:
Operation of the ballbot on slopes and with center-of-mass offsets. ICRA 2015: 2383-2388 - [c56]Michael Shomin, Jodi Forlizzi, Ralph L. Hollis:
Sit-to-stand assistance with a balancing mobile robot. ICRA 2015: 3795-3800 - 2014
- [j13]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
The ballbot: An omnidirectional balancing mobile robot. Int. J. Robotics Res. 33(6): 917-930 (2014) - [c55]Michael Shomin, Bhaskar Vaidya, Ralph L. Hollis, Jodi Forlizzi:
Human-approaching trajectories for a person-sized balancing robot. ARSO 2014: 20-25 - [c54]Michael Shomin, Ralph L. Hollis:
Fast, dynamic trajectory planning for a dynamically stable mobile robot. IROS 2014: 3636-3641 - 2013
- [j12]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
Integrated motion planning and control for graceful balancing mobile robots. Int. J. Robotics Res. 32(9-10): 1005-1029 (2013) - [j11]Umashankar Nagarajan, Ralph L. Hollis:
Shape space planner for shape-accelerated balancing mobile robots. Int. J. Robotics Res. 32(11): 1323-1341 (2013) - [j10]Bertram J. Unger, Roberta L. Klatzky, Ralph L. Hollis:
The Physical Basis of Perceived Roughness in Virtual Sinusoidal Textures. IEEE Trans. Haptics 6(4): 496-505 (2013) - [c53]Masaaki Kumagai, Ralph L. Hollis:
Development and control of a three DOF spherical induction motor. ICRA 2013: 1528-1533 - [c52]Hanns Tappeiner, Roberta L. Klatzky, Patrick Rowe, Jorgen Pedersen, Ralph L. Hollis:
Bimanual haptic teleoperation for discovering and uncovering buried objects. ICRA 2013: 2380-2385 - [c51]Michael Shomin, Ralph L. Hollis:
Differentially flat trajectory generation for a dynamically stable mobile robot. ICRA 2013: 4467-4472 - 2012
- [c50]Umashankar Nagarajan, Byungjun Kim, Ralph L. Hollis:
Planning in high-dimensional shape space for a single-wheeled balancing mobile robot with arms. ICRA 2012: 130-135 - [c49]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
Integrated planning and control for graceful navigation of shape-accelerated underactuated balancing mobile robots. ICRA 2012: 136-141 - [c48]Masaaki Kumagai, Ralph L. Hollis:
Development and control of a three DOF planar induction motor. ICRA 2012: 3757-3762 - [c47]Randy Lee
, Bing Wu, Roberta L. Klatzky, Vikas Shivaprabhu, John M. Galeotti, Samantha Horvath, Mel W. Siegel, Joel S. Schuman
, Ralph L. Hollis, George D. Stetten:
Hand-Held Force Magnifier for Surgical Instruments: Evolution toward a Clinical Device. AE-CAI 2012: 77-89 - 2011
- [j9]Bertram J. Unger, Ralph L. Hollis, Roberta L. Klatzky:
Roughness Perception in Virtual Textures. IEEE Trans. Haptics 4(2): 122-133 (2011) - [j8]Bing Wu, Roberta L. Klatzky, Ralph L. Hollis:
Force, Torque, and Stiffness: Interactions in Perceptual Discrimination. IEEE Trans. Haptics 4(3): 221-228 (2011) - [c46]Masaaki Kumagai, Ralph L. Hollis:
Development of a three-dimensional ball rotation sensing system using optical mouse sensors. ICRA 2011: 5038-5043 - [c45]George D. Stetten, Bing Wu, Roberta L. Klatzky, John M. Galeotti, Mel W. Siegel, Randy Lee
, Francis Mah, Andrew Eller, Joel S. Schuman
, Ralph L. Hollis:
Hand-Held Force Magnifier for Surgical Instruments. IPCAI 2011: 90-100 - 2010
- [c44]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
Hybrid control for navigation of shape-accelerated underactuated balancing systems. CDC 2010: 3566-3571
2000 – 2009
- 2009
- [c43]Hanns Tappeiner, Roberta L. Klatzky, Bertram J. Unger, Ralph L. Hollis:
Good vibrations: Asymmetric vibrations for directional haptic cues. WHC 2009: 285-289 - [c42]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
Human-robot physical interaction with dynamically stable mobile robots. HRI 2009: 205-206 - [c41]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
Human-robot physical interaction with dynamically stable mobile robots. HRI 2009: 281-282 - [c40]Umashankar Nagarajan, Anish Mampetta, George Kantor, Ralph L. Hollis:
State transition, balancing, station keeping, and yaw control for a dynamically stable single spherical wheel mobile robot. ICRA 2009: 998-1003 - [c39]Hanns Tappeiner, Sarjoun Skaff, Tomas Szabo, Ralph L. Hollis:
Remote haptic feedback from a dynamic running machine. ICRA 2009: 2368-2373 - [c38]Umashankar Nagarajan, George Kantor, Ralph L. Hollis:
Trajectory planning and control of an underactuated dynamically stable single spherical wheeled mobile robot. ICRA 2009: 3743-3748 - 2008
- [c37]Bertram J. Unger, Ralph L. Hollis, Roberta L. Klatzky:
The Geometric Model for Perceived Roughness Applies to Virtual Textures. HAPTICS 2008: 3-10 - [c36]Vinithra Varadharajan, Roberta L. Klatzky, Bertram J. Unger, Robert H. Swendsen, Ralph L. Hollis:
Haptic Rendering and Psychophysical Evaluation of a Virtual Three-Dimensional Helical Spring. HAPTICS 2008: 57-64 - [c35]Ralph L. Hollis:
Maglev haptics: butterfly haptic's new user interface technology. SIGGRAPH New Tech Demos 2008: 23 - 2007
- [c34]Bertram J. Unger, Ralph L. Hollis, Roberta L. Klatzky:
JND Analysis of Texture Roughness Perception using a Magnetic Levitation Haptic Device. WHC 2007: 9-14 - 2006
- [c33]Tom Lauwers, George Kantor, Ralph L. Hollis:
A Dynamically Stable Single-wheeled Mobile Robot with Inverse Mouse-ball Drive. ICRA 2006: 2884-2889 - 2005
- [c32]Tom Lauwers, George Kantor, Ralph L. Hollis:
One Is Enough!. ISRR 2005: 327-336 - 2004
- [c31]Bertram J. Unger, Ralph L. Hollis:
Design and Operation of a Force-reflecting Magnetic Levitation Coarse-fine Teleoperation System. ICRA 2004: 4147-4152 - [c30]Tom Lauwers, Zack K. Edmondson, Ralph L. Hollis:
Free-roaming Planar Motors: Toward Autonomous Precision Planar Mobile Robots. ICRA 2004: 4498-4503 - 2003
- [c29]Bertram J. Unger, Roberta L. Klatzky, Ralph L. Hollis:
A telemanipulation system for psychophysical investigation of haptic interaction. ICRA 2003: 1253-1258 - 2002
- [c28]Bertram J. Unger, A. Nicolaidis, Peter J. Berkelman, A. Thompson, Susan J. Lederman, Roberta L. Klatzky, Ralph L. Hollis:
Virtual Peg-in-Hole Performance Using a 6-DOF Magnetic Levitation Haptic Device: Comparison with Real Forces and with Visual Guidance Alone. Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems 2002: 263-270 - 2001
- [j7]Alfred A. Rizzi, Jay Gowdy, Ralph L. Hollis:
Distributed Coordination in Modular Precision Assembly Systems. Int. J. Robotics Res. 20(10): 819-838 (2001) - [c27]H. Benjamin Brown, Patrick M. Muir, Alfred A. Rizzi, Maria C. Sensi, Ralph L. Hollis:
A precision manipulator module for assembly in a minifactory environment. IROS 2001: 1030-1035 - [c26]Bertram J. Unger, A. Nicolaidis, Peter J. Berkelman, A. Thompson, Roberta L. Klatzky, Ralph L. Hollis:
Comparison of 3-D haptic peg-in-hole tasks in real and virtual environments. IROS 2001: 1751-1756 - 2000
- [j6]Peter J. Berkelman, Ralph L. Hollis:
Lorentz Magnetic Levitation for Haptic Interaction: Device Design, Performance, and Integration with Physical Simulations. Int. J. Robotics Res. 19(7): 644-667 (2000) - [c25]Wing-Choi Ma, Alfred A. Rizzi, Ralph L. Hollis:
Optical Coordination Sensor for Precision Cooperating Robots. ICRA 2000: 1621-1626 - [c24]Michael L. Chen, Shinji Kume, Alfred A. Rizzi, Ralph L. Hollis:
Visually Guided Coordination for Distributed Precision Assembly. ICRA 2000: 1651-1656 - [c23]Zack J. Butler, Alfred A. Rizzi, Ralph L. Hollis:
Cooperative Coverage of Rectilinear Environments. ICRA 2000: 2722-2727 - [c22]Richard T. DeLuca, Alfred A. Rizzi, Ralph L. Hollis:
Force-Based Interaction for Distributed Precision Assembly. ISER 2000: 141-150 - [c21]Zack J. Butler, Alfred A. Rizzi, Ralph L. Hollis:
Simulation and Experimental Evaluation of Complete Sensor-Based Coverage in Rectilinear Environments. ISER 2000: 417-426
1990 – 1999
- 1999
- [j5]Yasuyoshi Yokokohji
, Ralph L. Hollis, Takeo Kanade:
WYSIWYF Display: A Visual/Haptic Interface to Virtual Environment. Presence Teleoperators Virtual Environ. 8(4): 412-434 (1999) - [c20]Gregory A. Fries, Alfred A. Rizzi, Ralph L. Hollis:
Fluorescent Dye Based Optical Position Sensing for Planar Linear Motors. ICRA 1999: 1614-1619 - [c19]Peter J. Berkelman, Ralph L. Hollis, David Baraff:
Interaction with a Realtime Dynamic Environment Simulation Using a Magnetic Levitation Haptic Interface Device. ICRA 1999: 3261-3266 - 1998
- [c18]Arthur E. Quaid, Ralph L. Hollis:
3-DOF Closed-Loop Control for Planar Linear Motors. ICRA 1998: 2488-2493 - [c17]Zack J. Butler, Alfred A. Rizzi, Ralph L. Hollis:
Integrated Precision 3-DOF Position Sensor for Planar Linear Motors. ICRA 1998: 3109-3114 - 1997
- [c16]Arthur E. Quaid, Yangsheng Xu, Ralph L. Hollis:
Force characterization and commutation of planar linear motors. ICRA 1997: 1202-1207 - [c15]Alfred A. Rizzi, Jay Gowdy, Ralph L. Hollis:
Agile assembly architecture: an agent based approach to modular precision assembly systems. ICRA 1997: 1511-1516 - 1996
- [c14]Arthur E. Quaid, Ralph L. Hollis:
Cooperative 2-DOF robots for precision assembly. ICRA 1996: 2188-2193 - [c13]Yasuyoshi Yokokohji, Ralph L. Hollis, Takeo Kanade:
Vision-based visual/haptic registration for WYSIWYF display. IROS 1996: 1386-1393 - [c12]Yasuyoshi Yokokohji, Ralph L. Hollis, Takeo Kanade:
What You Can See is What You Can Feel - Development of Visual/Haptic Interface to Virtual Environment. VRAIS 1996: 46-53 - 1995
- [j4]Andrew E. Brennemann, Robert Hammer, William V. Jecusco II, Ralph L. Hollis:
Sensor based registration and stacking of electronic substrate layers. IEEE Robotics Autom. Mag. 2(4): 30-35 (1995) - [j3]Septimiu E. Salcudean
, N. M. Wong, Ralph L. Hollis:
Design and control of a force-reflecting teleoperation system with magnetically levitated master and wrist. IEEE Trans. Robotics Autom. 11(6): 844-858 (1995) - [c11]Andrew E. Brennemann, Ralph L. Hollis:
Magnetic and optical-fluorescence position sensing for planar linear motors. IROS (3) 1995: 101-107 - [c10]Peter J. Berkelman, Ralph L. Hollis, Septimiu E. Salcudean:
Interacting with virtual environments using a magnetic levitation haptic interface. IROS (1) 1995: 117-122 - 1994
- [c9]Andrew E. Brennemann, Robert Hammer, Ralph L. Hollis, William V. Jecusco II:
Accurate Alignment of Laminate Materials Using Sensor-Based Robot Techniques. ICRA 1994: 2273-2278 - 1993
- [c8]Sang-Rok Oh, Ralph L. Hollis, Septimiu E. Salcudean:
Precision Assembly with a Magnetically Levitated Wrist. ICRA (1) 1993: 127-134 - 1992
- [c7]Robert Hammer, Ralph L. Hollis, C. H. An, F. Henriks:
Design and control of an air-bearing supported three degree-of-freedom fine positioner. ICRA 1992: 677-684 - [c6]Ralph L. Hollis, Robert Hammer:
Real and virtual coarse-fine robot bracing strategies for precision assembly. ICRA 1992: 767-774 - [c5]Septimiu E. Salcudean, N. M. Wong, Ralph L. Hollis:
A force-reflecting teleoperation system with magnetically levitated master and wrist. ICRA 1992: 1420-1426 - 1991
- [j2]Ralph L. Hollis, Septimiu E. Salcudean
, A. Peter Allan:
A six-degree-of-freedom magnetically levitated variable compliance fine-motion wrist: design, modeling, and control. IEEE Trans. Robotics Autom. 7(3): 320-332 (1991)
1980 – 1989
- 1989
- [c4]T. E. Weber, Ralph L. Hollis:
A vision based correlator to actively damp vibrations of a coarse-fine manipulator. ICRA 1989: 818-825 - 1988
- [c3]Septimiu E. Salcudean, Ralph L. Hollis:
A magnetically levitated fine motion wrist: kinematics, dynamics and control. ICRA 1988: 261-266 - [c2]Andrew E. Brennemann, Ralph L. Hollis, Mark A. Lavin, Bela L. Musits:
Sensors for robotic assembly. ICRA 1988: 1606-1610 - 1985
- [j1]Russell H. Taylor, Ralph L. Hollis, Mark A. Lavin:
Precise Manipulation with Endpoint Sensing. IBM J. Res. Dev. 29(4): 363-376 (1985) - [c1]Ralph L. Hollis:
A planar XY robotic fine positioning device. ICRA 1985: 329-336
Coauthor Index
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