Investigating Force-Feedback in Mid-Air Sketching of Multi-Planar Three-Dimensional Curve-Soups

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Ronak R. Mohanty ◽  
Ricardo M. Castillo ◽  
Eric D. Ragan ◽  
Vinayak R. Krishnamurthy
Keyword(s):  
Interaction Design ◽  
Force Feedback ◽  
Three Dimensional ◽  
Free Form ◽  
Planar Curves ◽  
Planar Surfaces ◽  
Kinesthetic Feedback ◽  
Quantitative Analyses ◽  
Rich Interaction

Abstract In this paper, we report on our investigation of haptics-enabled mid-air interactions for sketching three-dimensional (3D) curve-soups—collections of three-dimensional multi-planar curves. We study pen-based mid-air interactions for free-form curve input from the perspective of manual labor, controllability, and kinesthetic feedback. We specifically study the role of kinesthetic feedback for two aspects of mid-air sketching, namely, drawing curves on planar surfaces and spatial rotation of 3D curve-soups. For this, we implemented a simple haptics-enabled workflow for users to draw and compose collections of planar curves on a force-enabled virtual canvas. The qualitative and quantitative analyses of our study-tasks show that there is a rich interaction design space of kinesthetic feedback methods for mid-air sketching beyond physically currently prevalent models.

Kinesthetically Augmented Mid-Air Sketching of Multi-Planar 3D Curve-Soups

2018 ◽  
Author(s):  
Ronak R. Mohanty ◽  
Umema H. Bohari ◽  
Vinayak ◽  
Eric Ragan
Keyword(s):  
Force Feedback ◽  
Three Dimensional ◽  
Free Form ◽  
Manual Labor ◽  
3D Design ◽  
Planar Curves ◽  
Kinesthetic Feedback ◽  
Curve Modeling

We present haptics-enabled mid-air interactions for sketching collections of three-dimensional planar curves — 3D curve-soups — as a means for 3D design conceptualization. Haptics-based mid-air interactions have been extensively studied for modeling of surfaces and solids. The same is not true for modeling curves; there is little work that explores spatiality, tangibility, and kinesthetics for curve modeling, as seen from the perspective of 3D sketching for conceptualization. We study pen-based mid air interactions for free-form curve input from the perspective of manual labor, controllability, and kinesthetic feedback. For this, we implemented a simple haptics-enabled workflow for users to draw and compose collections of planar curves on a force-enabled virtual canvas. We introduce a novel force-feedback metaphor for curve drawing, and investigate three novel rotation techniques within our workflow for both controlled and free-form sketching tasks.

Transfer of Perceptual Learning: Role of Tactual-Kinesthetic Feedback Reexamined

1981 ◽  
Vol 52 (1) ◽  
pp. 195-202
Author(s):  
Barry S. Anton ◽  
Nina I. Player ◽  
Thomas L. Bennett
Keyword(s):  
Perceptual Learning ◽  
Discrimination Learning ◽  
Three Dimensional ◽  
Important Variable ◽  
Albino Rats ◽  
Transfer Effects ◽  
Kinesthetic Feedback ◽  
Subsequent Discrimination

Albino rats were pre-exposed to stimuli in an otherwise visually sparse environment, with visibility and opportunity to manipulate the forms controlled during rearing. Analysis indicated that pre-exposing animals to stimuli which provided either tactual-kinesthetic feedback or highly visible forms significantly facilitated subsequent discrimination learning. The findings question the adequacy of either an attention-getting or tactual-kinesthetic feedback to account for differences in transfer effects in studies using two- and three-dimensional forms. It is suggested that the visibility of the forms and the opportunity to inspect the forms during pre-exposure is the important variable in studies of this type.

Noncommutative Control in the Rotational Vestibuloocular Reflex

2008 ◽  
Vol 99 (1) ◽  
pp. 96-111 ◽  
Author(s):  
Tamara Tchelidze ◽  
Bernhard J. M. Hess
Keyword(s):  
Three Dimensional ◽  
Oculomotor System ◽  
Head Orientation ◽  
Complete Darkness ◽  
Quantitative Analyses ◽  
The Subject ◽  
Roll Axis ◽  
Eye Velocity ◽  
The Brain

To investigate the role of noncommutative computations in the oculomotor system, three-dimensional (3D) eye movements were measured in seven healthy subjects using a memory-contingent vestibulooculomotor paradigm. Subjects had to fixate a luminous point target that appeared briefly at an eccentricity of 20° in one of four diagonal directions in otherwise complete darkness. After a fixation period of ∼1 s, the subject was moved through a sequence of two rotations about mutually orthogonal axes in one of two orders (30° yaw followed by 30° pitch and vice versa in upright and 30° yaw followed by 20° roll and vice versa in both upright and supine orientations). We found that the change in ocular torsion induced by consecutive rotations about the yaw and the pitch axis depended on the order of rotations as predicted by 3D rotation kinematics. Similarly, after rotations about the yaw and roll axis, torsion depended on the order of rotations but now due to the change in final head orientation relative to gravity. Quantitative analyses of these ocular responses revealed that the rotational vestibuloocular reflexes (VORs) in far vision closely matched the predictions of 3D rotation kinematics. We conclude that the brain uses an optimal VOR strategy with the restriction of a reduced torsional position gain. This restriction implies a limited oculomotor range in torsion and systematic tilts of the angular eye velocity as a function of gaze direction.

Compliant Mesoscale Grinding of 3-Dimensional Free Form Shapes in Silicon Wafers

2002 ◽  
Author(s):  
B. Jiang ◽  
M. A. Shannon ◽  
M. L. Philpott
Keyword(s):  
Force Feedback ◽  
Defect Formation ◽  
Three Dimensional ◽  
Silicon Wafers ◽  
Free Form ◽  
Precision Grinding ◽  
New Approach ◽  
3 Dimensional ◽  
Grinding Method ◽  
Ultra Precision

This paper presents a new approach to create three-dimensional free form shapes in silicon wafers by compliant grinding. Instead of requiring high rigidity in traditional ultra-precision grinding systems, the proposed compliant grinding method requires relatively low rigidity. It achieves the required surface roughness, form accuracy and surface integrity by utilizing grinding force feedback and adaptive control. Compliant grinding mitigates microfractures, chipping, and defect formation in the silicon substrate, so that both electronic and mechanical properties of the Si are not degraded. A prototype silicon die grinder has been built and initial rough grinding results are promising.

From Gesture to Form: The Evolution of Expressive Freehand Spatial Interfaces

Leonardo ◽  
2013 ◽  
Vol 46 (1) ◽  
pp. 82-83
Author(s):  
Daniel F. Keefe
Keyword(s):  
Force Feedback ◽  
Digital Art ◽  
Free Form ◽  
Human Hand ◽  
Art Practice ◽  
Computer Interfaces ◽  
Technical Innovations ◽  
Spatial Interfaces ◽  
Air Interfaces

This paper presents a series of insights from an ongoing investigation into refining custom spatial computer interfaces and graphical primitives for suggesting 3D form in immersive digital spaces. Technical innovations utilizing 3D gesture capture, force feedback, and stereoscopic presentation are described through reference to specific free-form digital sculptures created with the CavePainting and Drawing on Air interfaces. The role of the human hand in digital art practice and the potential of interfaces that tightly couple freehand movements with geometric algorithms are discussed.

scholarly journals The Essential Role of Nuclear β-Catenin Translocation in the Osteoblastic Differentiation of GCTB: Prediction of Tumor Ossification After Denosumab Treatment

2021 ◽  
Author(s):  
Atsushi Kimura ◽  
Yu Toda ◽  
Yoshihiro Matsumoto ◽  
Hidetaka Yamamoto ◽  
Kenichiro Yahiro ◽  
...  
Keyword(s):  
Nuclear Translocation ◽  
Three Dimensional ◽  
Osteoblastic Differentiation ◽  
Clinical Samples ◽  
Close Relationship ◽  
Clinical Biomarker ◽  
Quantitative Analyses ◽  
The Relationship ◽  
Denosumab Treatment

Abstract Denosumab is a game-changing drug for giant cell tumor of bone (GCTB); however, its clinical biomarker regarding tumor ossification of GCTB has not been elucidated. In this study, we investigated the relationship between Wnt/β-catenin signaling and the ossification of GCTB and evaluated whether endogenous nuclear β-catenin expression predicted denosumab-induced bone formation in GCTB. Genuine patient-derived primary GCTB tumor stromal cells exhibited osteoblastic characteristics. Identified osteoblastic markers and nuclear β-catenin translocation were significantly upregulated via differentiation induction and were inhibited by treating with Wnt signaling inhibitor, GGTI-286, or selective Rac1-LEF inhibitor, NSC23766. Furthermore, we reviewed the endogenous ossification and nuclear β-catenin translocation of 86 GCTB clinical samples and elucidated that intra-tumoral ossification was significantly associated with the nuclear translocation. Three-dimensional quantitative analyses (n = 13) of tumoral CT images have revealed that the nuclear β-catenin translocation of naïve GCTB samples was significantly involved with the denosumab-induced tumor ossification. Our findings suggest a close relationship between the nuclear β-catenin translocation and the osteoblastic differentiation of GCTB. Investigations of the nuclear β-catenin in naïve GCTB samples may provide a promising biomarker for predicting the ossification of GCTB following denosumab treatment.

From Gesture to Form: The Evolution of Expressive Freehand Spatial Interfaces

Leonardo ◽  
2011 ◽  
Vol 44 (5) ◽  
pp. 460-461 ◽  
Author(s):  
Daniel F. Keefe
Keyword(s):  
Force Feedback ◽  
Digital Art ◽  
Free Form ◽  
Human Hand ◽  
Art Practice ◽  
Computer Interfaces ◽  
Technical Innovations ◽  
Spatial Interfaces ◽  
Air Interfaces

This paper presents a series of insights from an ongoing investigation into refining custom spatial computer interfaces and graphical primitives for suggesting 3D form in immersive digital spaces. Technical innovations utilizing 3D gesture capture, force feedback, and stereoscopic presentation are described through reference to specific free-form digital sculptures created with the CavePainting and Drawing on Air interfaces. The role of the human hand in digital art practice and the potential of interfaces that tightly couple freehand movements with geometric algorithms are discussed.

The Role of Three-Dimensional Imaging in Evaluation of the Sinonasal Mass

1996 ◽  
Vol 34 (1) ◽  
pp. 27
Author(s):  
Sue Yon Shim ◽  
Ki Joon Sung ◽  
Young Ju Kim ◽  
In Soo Hong ◽  
Myung Soon Kim ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Imaging ◽  
Sinonasal Mass

Quantitative Conditions and Convergent Operations That Are Compatible With the Universe as a Persistent Generator of Successive Simulations

2016 ◽  
Vol 12 (1) ◽  
pp. 4178-4187
Author(s):  
Michael A Persinger ◽  
Stanley A Koren
Keyword(s):  
Structural Organization ◽  
Total Duration ◽  
Human Cognition ◽  
Intrinsic Properties ◽  
Basic Assumptions ◽  
Electron Orbit ◽  
Quantitative Analyses ◽  
Massive Information ◽  
The Universe

                The capacity for computer-like simulations to be generated by massive information processing from electron-spin potentials supports Bostrom’s hypothesis that matter and human cognition might reflect simulations. Quantitative analyses of the basic assumptions indicate the universe may display properties of a simulation where photons behave as pixels and gravitons control the structural organization. The Lorentz solution for the square of the light and entanglement velocities converges with the duration of a single electron orbit that ultimately defines properties of matter. The approximately one trillion potential states within the same space with respect to the final epoch of the universe indicate that a different simulation, each with intrinsic properties, has been and will be generated as a type of tractrix defined by ±2 to 3 days (total duration 5 to 6 days). It may define the causal limits within a simulation. Because of the intrinsic role of photons as the pixel unit, phenomena within which flux densities are enhanced, such as human cognition (particularly dreaming) and the cerebral regions associated with those functions, create the conditions for entanglement or excess correlations between contiguous simulations. The consistent quantitative convergence of operations indicates potential validity for this approach. The emergent solutions offer alternative explanations for the limits of predictions for multivariate phenomena that could be coupled to more distal simulations.

Homogenization and Mass Identity vs. Individual Identity. An Analysis in the Light of the Theory of “The Three Dimensional Spiral of Sense

2016 ◽  
Vol 2 (2) ◽  
pp. 40
Author(s):  
Miriam Aparicio
Keyword(s):  
Three Dimensional ◽  
Individual Identity ◽  
Cognitive Effects ◽  
The Media

This study tests some hypotheses included in the psycho-social-communicational paradigm, which emphasizes the cognitive effects of the media and the role of the psychosocial subject as the recipient

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