Haptic Rendering for a Virtual Palpation System

SUMMARY In this research, a combination of haptic display technology and ultrasonic elasticity imaging technology is attempted. The system can provide living body elasticity information in a three‐dimensional (3D) space as visual information and sense‐of‐force information. To realize the system, a h...

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Veröffentlicht in:Electronics and communications in Japan 2016-05, Vol.99 (5), p.27-36
Hauptverfasser: SUZUKI, SATOSHI, HAMAMOTO, KAZUHIKO
Format: Artikel
Sprache:eng
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Zusammenfassung:SUMMARY In this research, a combination of haptic display technology and ultrasonic elasticity imaging technology is attempted. The system can provide living body elasticity information in a three‐dimensional (3D) space as visual information and sense‐of‐force information. To realize the system, a haptic rendering method is proposed, which can take into account the effect of a 3D elasticity distribution to reproduce a reaction force. The reaction force can be applied from an arbitrary direction. The visual information is displayed on a quasi‐biological body by using OpenGL and an NURBS surface. Distortion such as that in a human body is expressed by NURBS. The system allows diagnosis from an arbitrary direction by improving the displacement filter. The accuracy of the displacement filter was verified by experiments. It was shown to be possible to perform identification from any direction.
ISSN:1942-9533
1942-9541
DOI:10.1002/ecj.11807