Haptogram: Ultrasonic Point-Cloud Tactile Stimulation
Studies of the stimulating effect of ultrasound as a tactile display have recently become more intensive in the haptic domain. In this paper, we present the design, development, and evaluation of Haptogram; a system designed to provide point-cloud tactile display via acoustic radiation pressure. A t...
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| Format: | Article |
| Language: | English |
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IEEE
2016-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/7565473/ |
| _version_ | 1818331471139569664 |
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| author | Georgios Korres Mohamad Eid |
| author_facet | Georgios Korres Mohamad Eid |
| author_sort | Georgios Korres |
| collection | DOAJ |
| description | Studies of the stimulating effect of ultrasound as a tactile display have recently become more intensive in the haptic domain. In this paper, we present the design, development, and evaluation of Haptogram; a system designed to provide point-cloud tactile display via acoustic radiation pressure. A tiled 2-D array of ultrasound transducers is used to produce a focal point that is animated to produce arbitrary 2-D and 3-D tactile shapes. The switching speed is very high, so that humans feel the distributed points simultaneously. The Haptogram system comprises a software component and a hardware component. The software component enables users to author and/or select a tactile object, create a point-cloud representation, and generate a sequence of focal points to drive the hardware. The hardware component comprises a tiled 2-D array of ultrasound transducers, each driven by an FPGA. A quantitative analysis is conducted to measure the Haptogram ability to display various tactile shapes, including a single point, 2-D shapes (a straight line and a circle) and a 3-D object (a hemisphere). Results show that all displayed tactile objects are perceivable by the human skin (an average of 2.65 kPa for 200 focal points). A usability study is also conducted to evaluate the ability of humans to recognize 2-D shapes. Results show that the recognition rate was well above the chance level (average of 59.44% and standard deviation of 12.75%) while the recognition time averaged 13.87 s (standard deviation of 3.92 s). |
| first_indexed | 2024-12-13T13:20:22Z |
| format | Article |
| id | doaj.art-538bdf11e155492b854897db6a942936 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T13:20:22Z |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-538bdf11e155492b854897db6a9429362022-12-21T23:44:25ZengIEEEIEEE Access2169-35362016-01-0147758776910.1109/ACCESS.2016.26088357565473Haptogram: Ultrasonic Point-Cloud Tactile StimulationGeorgios Korres0Mohamad Eid1https://orcid.org/0000-0002-6940-7891New York University Abu Dhabi, Abu Dhabi, United Arab EmiratesNew York University Abu Dhabi, Abu Dhabi, United Arab EmiratesStudies of the stimulating effect of ultrasound as a tactile display have recently become more intensive in the haptic domain. In this paper, we present the design, development, and evaluation of Haptogram; a system designed to provide point-cloud tactile display via acoustic radiation pressure. A tiled 2-D array of ultrasound transducers is used to produce a focal point that is animated to produce arbitrary 2-D and 3-D tactile shapes. The switching speed is very high, so that humans feel the distributed points simultaneously. The Haptogram system comprises a software component and a hardware component. The software component enables users to author and/or select a tactile object, create a point-cloud representation, and generate a sequence of focal points to drive the hardware. The hardware component comprises a tiled 2-D array of ultrasound transducers, each driven by an FPGA. A quantitative analysis is conducted to measure the Haptogram ability to display various tactile shapes, including a single point, 2-D shapes (a straight line and a circle) and a 3-D object (a hemisphere). Results show that all displayed tactile objects are perceivable by the human skin (an average of 2.65 kPa for 200 focal points). A usability study is also conducted to evaluate the ability of humans to recognize 2-D shapes. Results show that the recognition rate was well above the chance level (average of 59.44% and standard deviation of 12.75%) while the recognition time averaged 13.87 s (standard deviation of 3.92 s).https://ieeexplore.ieee.org/document/7565473/Haptic interfaceshuman computer interactionultrasonic transducer arrayuser interfaces |
| spellingShingle | Georgios Korres Mohamad Eid Haptogram: Ultrasonic Point-Cloud Tactile Stimulation IEEE Access Haptic interfaces human computer interaction ultrasonic transducer array user interfaces |
| title | Haptogram: Ultrasonic Point-Cloud Tactile Stimulation |
| title_full | Haptogram: Ultrasonic Point-Cloud Tactile Stimulation |
| title_fullStr | Haptogram: Ultrasonic Point-Cloud Tactile Stimulation |
| title_full_unstemmed | Haptogram: Ultrasonic Point-Cloud Tactile Stimulation |
| title_short | Haptogram: Ultrasonic Point-Cloud Tactile Stimulation |
| title_sort | haptogram ultrasonic point cloud tactile stimulation |
| topic | Haptic interfaces human computer interaction ultrasonic transducer array user interfaces |
| url | https://ieeexplore.ieee.org/document/7565473/ |
| work_keys_str_mv | AT georgioskorres haptogramultrasonicpointcloudtactilestimulation AT mohamadeid haptogramultrasonicpointcloudtactilestimulation |