Determining Control Points of Free-form Curves for Interpolations.
نویسندگان
چکیده
منابع مشابه
On Local Matching of Free-form Curves
Geometric matching in general is a difficult unsolved problem in computer vision. Fortunately, in many practical applications, some a priori knowledge exists which considerably simplifies the problem. In visual navigation, for example, the motion between successive positions is usually either small or approximately known, but a more precise registration is required for environment modeling. The...
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Geometric matching in general is a di cult unsolved problem in computer vision. Fortunately, in many practical applications, some a priori knowledge exists which considerably simpli es the problem. In visual navigation, for example, the motion between successive positions is usually either small or approximately known, but a more precise registration is required for environment modeling. The al...
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Free-form curves and surfaces represented by control points together with well-defined basis functions are widely used in computer aided geometric design. Efficient evaluation of points and derivatives of free-form curves and surfaces plays an important role in interactive rendering or CNC machining. In this paper we show that free-form curves with properly defined basis functions are the solut...
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This work addresses the issue of generating free-form surfaces using a 2D sketch interface. As the first step in this process, we develop a methodology to sketch 3D space curves from 2D sketches. Since the inverse projection from 2D sketches to 3D curve or surface is a one to many function, there is no unique solution. Hence we propose to interpret the given 2D curve to be the projection of the...
متن کاملSketching Free-form Surfaces Using Network of Curves
This work addresses the issue of generating free-form surfaces using a 2D sketch interface. As the first step in this process, we develop a methodology to sketch 3D space curves from 2D sketches. Since the inverse projection from 2D sketches to 3D curve or surface is a one to many function, there is no unique solution. Hence we propose to interpret the given 2D curve to be the projection of the...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 1992
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.58.715