Tangible and modular input device for character articulation

Jacobson, Alec; Panozzo, Daniele; Glauser, Oliver; Pradalier, Cédric; Hilliges, Otmar; Sorkine‐Hornung, Olga

doi:10.1145/2601097.2601112

Cited by 51 publications

(12 citation statements)

References 31 publications

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“…Compared to a classic mouse and keyboard, the TUI shows better results. The device also provides input for character equipment, automatic weight calculation, and more [57]. Lee et al from Chonnam National University proposed a tangible user interface for authoring 3D virtual and immersive scenes.…”

Section: Tui For Modeling 3d Objectsmentioning

confidence: 99%

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Review: Development and Technical Design of Tangible User Interfaces in Wide-Field Areas of Application

Krestanova

Černý

Augustýnek

2021

Sensors

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A tangible user interface or TUI connects physical objects and digital interfaces. It is more interactive and interesting for users than a classic graphic user interface. This article presents a descriptive overview of TUI’s real-world applications sorted into ten main application areas—teaching of traditional subjects, medicine and psychology, programming, database development, music and arts, modeling of 3D objects, modeling in architecture, literature and storytelling, adjustable TUI solutions, and commercial TUI smart toys. The paper focuses on TUI’s technical solutions and a description of technical constructions that influences the applicability of TUIs in the real world. Based on the review, the technical concept was divided into two main approaches: the sensory technical concept and technology based on a computer vision algorithm. The sensory technical concept is processed to use wireless technology, sensors, and feedback possibilities in TUI applications. The image processing approach is processed to a marker and markerless approach for object recognition, the use of cameras, and the use of computer vision platforms for TUI applications.

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Section: Tui For Modeling 3d Objectsmentioning

confidence: 99%

“…Compared to a classic mouse and keyboard, the TUI shows better results. The device also provides input for character equipment, automatic weight calculation, and more [ 57 ].…”

Section: Tui Application Areasmentioning

confidence: 99%

Review: Development and Technical Design of Tangible User Interfaces in Wide-Field Areas of Application

Krestanova

Černý

Augustýnek

2021

Sensors

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“…For example, it could enhance the process of animation authoring by offering intuitive character control using the animator's gestures. Note that the trajectory generation of 3D objects that are composed of multiple joints requires a great deal of time and cognitive load on the part of the animator [41]. In fact, a previous effort by Shiratori et al developed an efficient trajectory generation method based on an animator's 3D gestures to resolve such issues [42].…”

Section: Applicationmentioning

confidence: 99%

Towards Shape-Changing Devices: Physical Interface Control with an Active Contour Model

2018

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This paper proposes a novel tangible interface system to enhance the immersive experience in virtual reality environments. The proposed system allows representing physical properties of the tool, such as the deflection of the elastic rods, which users handle in a virtual and physical environment. This system is composed of two parts; one is an articulated interface to visually represent the physical behavior and the other is a computational algorithm that can compute a set of 6-DOF positions of the links. The proposed computational algorithm extends an active contour model, which is used primarily in computer vision and image processing, incorporating a spring and damping constraint energy functional. An elastic rod is modeled as a series of rigid line segments with a symmetric relationship between neighboring segments, and its shape is modeled to be influenced by energies that are induced by a user, and the external deformation of the spline. The symmetric and sparse properties of the proposed model enable an efficient energy minimization process, and the modification of a number of the line segments. Based on this configuration, we construct an energy generation method based on the positional displacement of the base element to generate the deflection behavior of the contour according to the user's motion in the space. Therefore, the physical device can simulate a variety of deformable objects by modulating energy parameters during the energy minimization process. Experimental results demonstrate the feasibility of emulating various behaviors of deformable splines, and applying to virtual reality system without interfering with the motion-to-photon latency. We also discuss the method's limitations and explore its potential.

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“…11 We designed a physical input device that replaces the mouse and keyboard, allowing the user to construct a custom skeleton with joints whose measured angles may be directly applied as skinning transformations (see Figure 12).…”

Section: Real-time 3d Deformationmentioning

confidence: 99%

Breathing Life into Shapes

Jacobson¹

2015

IEEE Comput. Grap. Appl.

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Shape articulation transforms a lifeless geometric object into a vibrant character. Computers enrich artists' toolsets dramatically. They not only endow artists with the power to manipulate virtual 2D and 3D scenes, but they also eliminate tedium and expedite prototyping, freeing artists to focus on creative aspects. With such power comes a temptation to lean entirely on the computer. Computationally intensive animation systems sacrifice real-time feedback for physical accuracy. How can we leverage modern computational power to create the best possible shape deformations while maintaining real-time performance as a mandatory invariant? This article summarizes efforts to answer this, culminating in a deformation system with the quality of slow, nonlinear optimization, but at lightning speed.

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Tangible and modular input device for character articulation

Cited by 51 publications

References 31 publications

Review: Development and Technical Design of Tangible User Interfaces in Wide-Field Areas of Application

Review: Development and Technical Design of Tangible User Interfaces in Wide-Field Areas of Application

Towards Shape-Changing Devices: Physical Interface Control with an Active Contour Model

Breathing Life into Shapes

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