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.

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.

Without Visible Scars: Digital Art and the Memory of War

Leonardo ◽  
2009 ◽  
Vol 42 (1) ◽  
pp. 16-26 ◽  
Author(s):  
Lanfranco Aceti
Keyword(s):  
Digital Media ◽  
Cultural Landscape ◽  
Visual Representation ◽  
Digital Art ◽  
Art Practice

What is the role of the artist in re-creating a cultural landscape where the psychology and identity are shaped by multiple narratives of wars? The author's art practice attempts to demonstrate the role of digital media in providing a platform for visual representation of multiple narratives.

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.

The Role of Direct and Visual Force Feedback in Suturing Using a 7-DOF Dual-Arm Teleoperated System

2017 ◽  
Vol 10 (2) ◽  
pp. 276-287 ◽  
Author(s):  
Ali Talasaz ◽  
Ana Luisa Trejos ◽  
Rajni V. Patel
Keyword(s):  
Force Feedback ◽  
Visual Force Feedback ◽  
Dual Arm

scholarly journals Do patients value a hospital’s innovativeness reputation? A multi-method approach to assess the relative importance of innovativeness reputation in patients’ hospital choice

2017 ◽  
Vol 31 (3) ◽  
pp. 138-153 ◽  
Author(s):  
Sebastian Gurtner ◽  
Nadine Hietschold ◽  
María Vaquero Martín
Keyword(s):  
Value Added ◽  
Patient Choice ◽  
Relative Importance ◽  
Hospital Choice ◽  
Patient Decision ◽  
Technical Innovations ◽  
Multi Method Approach ◽  
Method Approach

Innovations in health care are costly and risky, but they also provide the opportunity for hospitals to increase quality of care, to distinguish themselves from competitors and to attract patients. While numerous hospitals strive to increase their innovativeness by adopting a costly innovation leader strategy, the question of whether this actually influences the patient’s choice remains unanswered. To understand the role of innovativeness from the patient perspective, this study conceptualizes the construct of innovativeness reputation of hospitals and determines its relevance in patients’ hospital choice decisions. In the pretest, we identified six dimensions of innovativeness reputation such as progressive work procedures and value added services. We then used three different quantitative multi-criteria decision-making methods to evaluate the relative importance of innovativeness reputation in patient choice. We collected data from 355 former German patients who had undergone elective non-emergency surgery. Overall, innovativeness reputation accounts for 11.6%–16.8% of the patient decision. Innovativeness reputation has a moderate influence on hospital choice and should be taken into account by managers. Since technical innovations are costly, hospitals should use other means to enhance their innovative image. Strategies such as emphasizing value added services can enable hospitals to increase their innovativeness reputation efficiently.

Paradigm integration of fine art training for would-be professionals of art at high school at theory and local experience

2021 ◽  
Vol 7 (3C) ◽  
pp. 720-729
Author(s):  
Mykola Pichkur ◽  
Halyna Sotska ◽  
Andrii Hordash ◽  
Liliia Poluden ◽  
Iryna Patsaliuk
Keyword(s):  
Fine Arts ◽  
Fine Art ◽  
Digital Art ◽  
Educational Institutions ◽  
Art Practice ◽  
Higher Educational Institutions ◽  
Local Experience ◽  
Different Types ◽  
Higher Educational ◽  
Practice Development

In accordance with historic analysis, the article considers the valued traditional and innovative fine arts studios of artists of different generations; they help to identify specific artistic features of artists of different generations who create artistic works of the information world. We describe the genesis of digital art practice development and demonstrate its influence on the renovation of classic fine art classification system via the digital works of different types and genres. The limits of artistic amateur field as a factor of professional and profane blurring in an artist’s personality are clarified. The new concept of “digital paradigm of fine art training at higher educational institutions” is proposed in the article as an innovative method of specific subjects studying. Methodology of professional skills development while designing digital works for students of artistic profession at higher education was justified and the results of local experience of its implementation at higher educational institutions of Ukraine were described.

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.

Load-Regulating Mechanisms in Gait and Posture: Comparative Aspects

2000 ◽  
Vol 80 (1) ◽  
pp. 83-133 ◽  
Author(s):  
J. Duysens ◽  
F. Clarac ◽  
H. Cruse
Keyword(s):  
Functional Role ◽  
Stance Phase ◽  
Force Feedback ◽  
Sensory Information ◽  
Specific Load ◽  
Afferent Activity ◽  
Basic Principles ◽  
Load Sensing ◽  
The Central Nervous System

How is load sensed by receptors, and how is this sensory information used to guide locomotion? Many insights in this domain have evolved from comparative studies since it has been realized that basic principles concerning load sensing and regulation can be found in a wide variety of animals, both vertebrate and invertebrate. Feedback about load is not only derived from specific load receptors but also from other types of receptors that previously were thought to have other functions. In the central nervous system of many species, a convergence is found between specific and nonspecific load receptors. Furthermore, feedback from load receptors onto central circuits involved in the generation of rhythmic locomotor output is commonly found. During the stance phase, afferent activity from various load detectors can activate the extensor part in such circuits, thereby providing reinforcing force feedback. At the same time, the flexion is suppressed. The functional role of this arrangement is that activity in antigravity muscles is promoted while the onset of the next flexion is delayed as long as the limb is loaded. This type of reinforcing force feedback is present during gait but absent in the immoble resting animal.

scholarly journals Demonstration of a portable intracortical brain-computer interface

2019 ◽  
Author(s):  
Jeffrey M. Weiss ◽  
Robert A. Gaunt ◽  
Robert Franklin ◽  
Michael Boninger ◽  
Jennifer L. Collinger
Keyword(s):  
Signal Processing ◽  
Brain Computer Interface ◽  
Computer Interface ◽  
Free Form ◽  
Small Signal ◽  
Standard Laboratory ◽  
Tablet Pc ◽  
Computer Interfaces ◽  
Investigational Device Exemption ◽  
Human Participant

AbstractWhile recent advances in intracortical brain-computer interfaces (iBCI) have demonstrated the ability to restore motor and communication functions, such demonstrations have generally been confined to controlled experimental settings and have required bulky laboratory hardware. Here, we developed and evaluated a self-contained portable iBCI that enabled the user to interact with various computer programs. The iBCI, which weighs 1.5 kg, consists of digital headstages, a small signal processing hub, and a tablet PC. A human participant tested the portable iBCI in laboratory and home settings under an FDA Investigational Device Exemption (NCT01894802). The participant successfully completed 96% of trials in a 2D cursor center-out task with the portable iBCI, a rate indistinguishable from that achieved with the standard laboratory iBCI. The participant also completed a variety of free-form tasks, including drawing, gaming, and typing.

scholarly journals Virtual Agents in Brain-Computer Interfaces

2015 ◽  
Vol 15 (1) ◽  
pp. 48-60 ◽  
Author(s):  
Marc Cavazza ◽  
Fred Charles ◽  
Stephen W. Gilroy ◽  
Julie Porteous ◽  
Gabor Aranyi ◽  
...  
Keyword(s):  
Virtual Worlds ◽  
Potential Role ◽  
Affective State ◽  
Regulation System ◽  
Virtual Agents ◽  
Interactive Narrative ◽  
Brain Computer Interfaces ◽  
Specific Context ◽  
Computer Interfaces

The recent development of Brain-Computer Interfaces (BCI) for Virtual Worlds has resulted in a growing interest in realistic visual feedback. In this paper, we investigate the potential role of Virtual Agents in neurofeedback (NF) systems, which constitute an important paradigm for BCI. We discuss the potential of virtual agents to contribute to the success of NF in the specific context of affective BCI. Throughout the paper, we illustrate our presentation with two fully implemented NF prototypes featuring virtual agents. The first is an interactive narrative in which the user empathises with the feature character; the second, an emotion regulation system in which virtual crowd behaviour becomes a metaphor for arousal, as the user attempts to down-regulate their affective state.

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