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Issue No.02 - April-June (2011 vol.4)
pp: 100-110
Tactile arrays are devices that can provide spatially distributed cutaneous signals delivering crucial information during virtual haptic exploration or remote manipulation procedures. Two of the key specifications of a tactile array are the tactor spacing and array size that are believed to directly affect the device performance. In most of the systems developed so far, these two parameters have been chosen by trial and error or by trying to match the tactor density to the spatial resolution in the human fingertip. The objective of this work is to study the effect of tactor spacing and array size on the tactile arrays performance by measuring human tactile discrimination ability. Psychophysical experiments were performed to obtain the differential threshold for discrimination of a ridge angle and the shape recognition performance while exploring edge-based patterns. The patterns were explored through different passive (nonactuated) tactile arrays of vertically moving pins and also directly with the finger. Results indicate that a tactile array of 1.8 mm tactor spacing and 1 cm2 array size transmits the pattern information with a good level of accuracy. This work shows that tactile devices with low complexity (small number of tactors) are still effective in conveying tactile cues. Moreover, this work provides performance measures that determinate the capabilities of tactile pin arrays to convey accurately tactile information.
Arrays, Shape, Pins, Fingers, Humans, Haptic interfaces, Plastics,tactile system design and evaluation., Tactile perception and psychophysics, tactile devices
"Feeling through Tactile Displays: A Study on the Effect of the Array Density and Size on the Discrimination of Tactile Patterns", IEEE Transactions on Haptics, vol.4, no. 2, pp. 100-110, April-June 2011, doi:10.1109/TOH.2010.59
[1] P. Apkarian-Stielau and J.M. Loomis, "A Comparison of Tactile and Blurred Visual Form Perception," Perception and Psychophysics, vol. 18, pp. 362-368, 1975.
[2] R.L. Klatzky, S.J. Lederman, and J.M. Loomis, "Similarity of Tactual and Visual Picture Recognition with Limited Field of View," Perception, vol. 20, pp. 167-177, 1991.
[3] J.H. Killebrew et al., "A Dense Array Stimulator to Generate Arbitrary Spatio-Temporal Tactile Stimuli," J. Neuroscience Methods, vol. 161, pp. 62-74, 2007.
[4] H.-N. Ho and L.A. Jones, "Development and Evaluation of a Thermal Display for Material Identification and Discrimination," ACM Trans. Applied Perception, vol. 4, pp. 1-24, 2007.
[5] Y. Ikei et al., "Texture Presentation by Vibratory Tactile Display Image Based Presentation of a Tactile Texture," Proc. IEEE Ann. Int'l Symp.Virtual Reality, vol. 219, pp. 199-205, 1997.
[6] N.G. Tsagarakis et al., "SLIP AESTHEASIS: A Portable 2D Slip/Skin Stretch Display for the Fingertip," Proc. IEEE First Joint Eurohaptics Conf. and Symp. Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC '05), pp. 214-219, 2005.
[7] G.-H. Yang et al., "Use of Simulated Thermal Cues for Material Discrimination and Identification with a Multi-Fingered Display," Presence: Teleoperators and Virtual Environments, vol. 17, pp. 29-42, 2008.
[8] T. Yoshioka, S.S. Hsiao, and K.O. Johnson, "Neural Coding and the Basic Law of Psychophysics," Neuroscientist, vol. 8, pp. 111-121, 2002.
[9] D.L.J. Wolfe, K. Kluender, L. Bartoshuk, R. Herz, R. Klatzky, and S.J. Lederman, Sensation and Perception, first ed. Sinauer Assoc., Inc., 2005.
[10] K.O. Johnson et al., "Tactile Functions of Mechanoreceptive Afferents Innervating the Hand," J. Clinical Neurophysiology, vol. 17, pp. 539-558, 2000.
[11] D.G. Caldwell et al., "An Integrated Tactile/Shear Feedback Array for Stimulation of Finger Mechanoreceptor," Proc. IEEE Int'l Conf. Robotics and Automation '99, vol. 1, pp. 287-292, 1999.
[12] C.J. Hasser and J.M. Weisenberger, "Preliminary Evaluation of a Shape-Memory Alloy Tactile Feedback Display," Advances in Robtotics Mechatronics and Haptic Interfaces, Am. Soc. Mechanical Engineers, vol. 49, 1993.
[13] A. Moser, A. Creed, and P. Taylor, "A Sixty-Four Element Tactile Display Using Shape Memory Alloy Wires," Displays, vol. 18, pp. 163-168, 1998.
[14] K. Sato and S. Tachi, "Design of Electrotactile Stimulation to Represent Distribution of Force Vectors," Proc. IEEE Haptics Symp.'10 , pp. 121-128, 2010.
[15] I. Sarakoglou et al., "Free to Touch: A Portable Tactile Display for 3D Surface Texture Exploration," Proc. IEEE/RSJ Int'l Conf. Intelligent Robots and Systems '06, pp. 3587-3592, 2006.
[16] C.R. Wagner, S.J. Lederman, and R.D. Howe, "Design and Performance of a Tactile Shape Display Using RC Servomotors," Haptics-e: The Electronic J. Haptic Research, vol. 3, 2004.
[17] I.R. Summers and C.M. Chanter, "A Broadband Tactile Array on the Fingertip," J. Acoustical Soc. Am., vol. 112, pp. 2118-2126, 2002.
[18] J. Pasquero and V. Hayward, "STRESS: A Practical Tactile Display System with One Millimeter Spatial Resolution and 700 Hz Refresh Rate," Proc. Conf. Eurohaptics '03, pp. 94-110, 2003.
[19] M. Benali-Khoudja et al., "VITAL: An Electromagnetic Integrated Tactile Display," Displays, vol. 28, pp. 133-144, 2007.
[20] L.A. Jones and N.B. Sarter, "Tactile Displays: Guidance for Their Design and Application," Human Factors: The J. Human Factors and Ergonomics Soc., vol. 50, pp. 90-111, 2008.
[21] R.S. Johansson and A.B. Vallbo, "Tactile Sensibility in the Human Hand: Relative and Absolute Densities of Four Types of Mechanoreceptive Units in Glabrous Skin," J. Physiology, vol. 286, pp. 283-300, Jan. 1979.
[22] R.W. Van Boven and K.O. Johnson, "A Psychophysical Study of the Mechanisms of Sensory Recovery Following Nerve Injury in Humans," Brain, vol. 117, pp. 149-167, Feb. 1994.
[23] K.O. Johnson and J.R. Phillips, "Tactile Spatial Resolution. I. Two-Point Discrimination, Gap Detection, Grating Resolution, and Letter Recognition," J. Neurophysiology, vol. 46, pp. 1177-1192, Dec. 1981.
[24] S.J. Lederman, "Tactual Roughness Perception: Spatial and Temporal Determinants," Canadian J. Psychology, vol. 37, pp. 498-511, 1983.
[25] K. Sathian and A. Zangaladze, "Perceptual Learning in Tactile Hyperacuity: Complete Intermanual Transfer but Limited Retention," Experimental Brain Research, vol. 118, pp. 131-134, 1998.
[26] W. Qi and V. Hayward, "Compact, Portable, Modular, High-Performance, Distributed Tactile Transducer Device Based on Lateral Skin Deformation," Proc. 14th Symp. Haptic Interfaces for Virtual Environment and Teleoperator Systems '06, pp. 67-72, 2006.
[27] K. Seung-Chan et al., "Small and Lightweight Tactile Display (SaLT) and Its Application," Proc. IEEE EuroHaptics Conf. and Symp. Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics '09. Third Joint, pp. 69-74. 2009.
[28] N. Asamura et al., "Necessary Spatial Resolution for Realistic Tactile Feeling Display," Proc. ICRA IEEE Int'l Conf. Robotics and Automation '01, pp. 1851-1856, 2001.
[29] R.W. Cholewiak et al., "Vibrotactile Localization on the Abdomen: Effects of Place and Space," Perception and Psychophysics, vol. 66, pp. 970-987, Aug. 2004.
[30] R.W. Cholewiak and A.A. Collins, "Vibrotactile Localization on the Arm: Effects of Place, Space, and Age," Perception and Psychophysics, vol. 65, pp. 1058-1077, Oct. 2003.
[31] M. Shimojo et al., "Human Shape Recognition Performance for 3D Tactile Display," IEEE Trans. Systems, Man and Cybernetics, Part A: Systems and Humans, vol. 29, no. 6, pp. 637-644, Nov. 1999.
[32] H.K.M. Nakatani, N. Kawakami, and S. Tachi, "Tactile Sensation with High Density Pin Matrix," Proc. Second Symp. Applied Perception in Graphics and Visualization, 2005.
[33] N. Kawakami, S. Tachi, and M. Nakatani, "How Human Can Discriminate between Convex and Concave Shape from the Tactile Stimulus," Proc. Ann. Conf. Cognitive Science Soc., CogScience, 2007.
[34] D. Katz, "Quantitative Studies of the Tactual Performance," The World of Touch, Lawrence Erlbaum Assoc., 1989.
[35] S.J. Lederman and R.L. Klatzky, "Hand Movements: A Window into Haptic Object Recognition," Cognitive Psychology, vol. 19, pp. 342-368, 1987.
[36] N.G. Tsagarakis and D.G. Caldwell, "A 5 Dof Haptic Interface for Pre-Operative Planning of Surgical Access in Hip Arthroplasty," Proc. IEEE Eurohaptics Conf. and Symp. Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics '05. First Joint, pp. 519-520, 2005.
[37] G.A. Gescheider, Psychophysics: The Fundamental, third ed. Lawrence Erlbaum Assoc., 1997.
[38] S.A. Wall and S. Brewster, "Sensory Substitution Using Tactile Pin Arrays: Human Factors, Technology and Applications," Signal Processing, vol. 86, pp. 3674-3695, 2006.
[39] M.W.A. Wijntjes and A.M.L. Kappers, "Angle Discrimination in Raised-Line Drawings," Perception, vol. 36, pp. 865-79, 2007.
[40] B. Riedel and A.M. Button, "Perception of Gradient in Haptic Graphs by Sighted and Visually Impaired Subjects," Proc. Conf. Eurohaptics, pp. 90-92, 2002.
[41] G. Jansson, "Haptic Perception of Outline 2D Shape: The Contributions of Information via the Skin, the Joints and the Muscles," Proc. Workshop Advances in Perception—Action Coupling, pp. 25-30, 1998.
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