Interpolating splines with local tension, continuity, and bias control

Kochanek, Doris H. U.; Bartels, Richard H.

doi:10.1145/964965.808575

Cited by 171 publications

(76 citation statements)

References 5 publications

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“…All mathematical expressions are evaluated using the Java Math Expression Parser. 7 Custom function macros can be designed. We defined such macros for Hermite splines, TCB splines [7] and Perlin noise.…”

Section: Procedural Motion Unitsmentioning

confidence: 99%

“…7 Custom function macros can be designed. We defined such macros for Hermite splines, TCB splines [7] and Perlin noise. An example XML-specification of a procedural motion unit can be found at the showcase.…”

Section: Procedural Motion Unitsmentioning

confidence: 99%

“…Biologically inspired gaze and pointing motion units from our previous work [20] were directly converted into such specialized motion units. 7 Singular Systems, http://sourceforge.net/projects/jep/.…”

Section: Procedural Motion Unitsmentioning

confidence: 99%

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Elckerlyc

Welbergen

Reidsma

Ruttkay

et al. 2009

J Multimodal User Interfaces

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"Elckerlyc" is a BML Realizer for generating multimodal verbal and nonverbal behavior for Virtual Humans (VHs). The main characteristics of Elckerlyc are that (1) it is designed specifically for continuous interaction with tight temporal coordination between the behavior of a VH and its interaction partner; (2) it provides a mix between the precise temporal and spatial control offered by procedural animation and the physical realism of physical simulation; and (3) it is designed to be highly modular and extensible, implementing the architecture proposed in SAIBA.

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Section: Procedural Motion Unitsmentioning

confidence: 99%

Section: Procedural Motion Unitsmentioning

confidence: 99%

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Elckerlyc

Welbergen

Reidsma

Ruttkay

et al. 2009

J Multimodal User Interfaces

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“…Les seuils temporels de rétraction des bras vers une position neutre sont rallongés dans les mouvements fluides. La fluidité affecte également la continuité des courbes Spline de Kochanek-Bartels (1984) utilisées pour l'interpolation de la trajectoire du bras. Pour visualiser l'intensité d'un mouvement, nous contrôlons également les paramètres Spline de Kochanek-Bartels et, si la forme de la main n'est pas essentielle au geste (comme c'est le cas pour les gestes de battement), nous y associons une forme de main tendue ou détendue.…”

Section: Une Modélisation De L'expressivitéunclassified

Conception et évaluation d'un modèle d'expressivité pour les gestes des agents conversationnels

Buisine¹,

Hartmann²,

Mancini³

et al. 2006

Revue d'intelligence artificielle

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“…Cubic splines are used to calculate intermediate parameter values at the resolution of the operator's choice prior to movement in the environment. [20,23] The key camera location and orientation are manually controlled. The final virtual camera model is that of automatic path planning.…”

Section: Image Manipulation and Viewing Techniques And Interfacesmentioning

confidence: 99%

Virtual endoscopic environments in modern neurosurgical practice

Levy¹,

Chen²,

Amar³

et al. 1999

FOC

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Modern radiographic techniques have allowed the creation of high-definition planar images that can provide important anatomical as well as physiological data. Planar imaging sets can be reformatted into three-dimensional (3-D) data sets that can then be manipulated to demonstrate important anatomical or gross pathological features. Three-dimensional data sets have been used with success in modern image-guided or frameless stereotactic surgery. Another potential application is so-called "virtual endoscopy" or "scopeless endoscopy," in which a 3-D anatomical data set is reformatted into a volume-rendered image that can then be viewed. By reformatting images in this way, a "surgeon's-eye" view can be obtained, which can aid in presurgical planning and diagnosis. The use of virtual endoscopy has the potential to increase our understanding of the appropriate anatomy and the anatomical relationships most apparent during neurosurgical approaches. In so doing, virtual endoscopy may serve as an important means of planning for therapeutic interventions. On the other hand, one must always be cognizant of the technical limitations of these studies regardless of the quality of the reconstructed images. Prospective, correlative, clinical studies in which the anatomical advantages of virtual-based endoscopy are evaluated in large cadaver or patient series must be performed. Until then, the only potential ways to compensate for errors that exist in the algorithms and reconstructions of 3-D endoscopic images are based on the surgeon's understanding of the clinical state of the patient and prior experience with the anatomy in the region of question.

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Interpolating splines with local tension, continuity, and bias control

Cited by 171 publications

References 5 publications

Elckerlyc

Elckerlyc

Conception et évaluation d'un modèle d'expressivité pour les gestes des agents conversationnels

Virtual endoscopic environments in modern neurosurgical practice

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