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Practical Pre-School, 2017
Many of life's practical challenges involve shapes and understanding their properties. Hilary White suggests ways to help children to explore shape, pattern and space, find solutions to problems and begin to understand similarity and difference.
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Many of life's practical challenges involve shapes and understanding their properties. Hilary White suggests ways to help children to explore shape, pattern and space, find solutions to problems and begin to understand similarity and difference.
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Sensing surface shape by touch
[1993] Proceedings IEEE International Conference on Robotics and Automation, 2002The design and construction of a tactile sensor that has been developed to measure the surface shape of objects held between the fingers of a robot gripper are described. A robotic tactile sensory workcell has been assembled to investigate touch-mediated grasping and object manipulation.
R.A. Russell, S. Parkinson
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Three-core fiber-based shape-sensing application
Optics Letters, 2008By using specially designed three-core fiber, a microstructured light-pattern generator for sensing 3-D shapes has been demonstrated. The square or hexagon grid-interferometric fringe pattern formed by the fiber-optic interferometric grid generator is projected onto an object's surface.
Libo, Yuan +4 more
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Fiber-Optical 3D Shape Sensing
2014Fiber Bragg grating (FBG) technology is well known since more than three decades. It started in 1978 with the discovery of photosensitivity in optical fibers by Ken Hill et al. [1] when illuminating germanium-doped silica fibers with visible argon ion laser radiation.
Christian Waltermann +5 more
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Remote sensed images segmentation through shape refinement
Proceedings 11th International Conference on Image Analysis and Processing, 2002A novel approach to the automatic classification of remotely sensed images is proposed. This approach is based on a three-phase procedure: first pixels which belong to the areas of interest with large likelihood are selected as seeds; second the seeds are refined into connected shapes using two well-known image processing techniques; third the results ...
GALLO, Giovanni +3 more
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Shape Sensing using the ShArc Technique
Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems, 2020ShArc is a new, geometric technique for real-time measurement of complex curves. These sensors have a flexible strip that can be dynamically formed into different shapes in a plane. Unlike traditional bend sensors which provide only a single measure of angle, inexpensive ShArc sensors provide detailed information about their precise shape.
Fereshteh Shahmiri, Paul H. Dietz
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Geometric Sensing of Known Planar Shapes
The International Journal of Robotics Research, 1996Industrial assembly involves sensing the pose (orientation and position) of a part. Efficient and reliable sensing strategies can be developed for an assembly task if the shape of the part is known in advance. In this article we investigate two problems of determining the pose of a polygonal part of known shape for the cases of a continuum and a ...
Jia, Yan-Bin, Erdmann, Michael
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Shape Sensing for Soft Robotic Manipulators
Volume 7: 33rd Mechanisms and Robotics Conference, Parts A and B, 2009Soft robotic manipulators are continuum robots made of soft materials that undergo continuous elastic deformation and produce motion with a smooth backbone curve. These manipulators offer significant advantages over traditional manipulators due to their ability to conform to their surroundings, move with dexterity and manipulate objects of widely ...
Deepak Trivedi, Christopher D. Rahn
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Fiber-Optics-Based Aeroelastic Shape Sensing
AIAA Journal, 2019This paper presents a numerical and experimental wind tunnel study of aeroelastic shape sensing using fiber-optic sensors.
Maxim Freydin +5 more
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High-accuracy fiber-optic shape sensing
SPIE Proceedings, 2007We describe the results of a study of the performance characteristics of a monolithic fiber-optic shape sensor array. Distributed strain measurements in a multi-core optical fiber interrogated with the optical frequency domain reflectometry technique are used to deduce the shape of the optical fiber; referencing to a coordinate system yields position ...
Roger G. Duncan +6 more
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