A human model design method based on hybrid interpolation parameterization

Abstract

The invention discloses a hydrid interpolation parameterization-based mannequin design method which mainly uses points on a characteristic layer as control points, and points on an uncharacteristic layer as interpolation points, the scaling factors of the characteristic layer and the uncharacteristic layer are sequentially calculated so as to obtain the height h of the interpolation points in a vertical direction, and the change rate s in a horizontal direction to finally obtain the changed coordinates. In the invention, the mathematic principle is simple and clear and parameters can be easily controlled. By adopting hydrid interpolation parameterization design in combination with vertical and horizontal directions, and by using a spline joint principle, a globally parameterized model can maintain C1 continuity, and has integral resizing and local fine adjusting effects, so that the problem of smoothness after mannequin parameterization can be solved. By directly carrying out parameterization to the characteristic layer, the parameterized mannequin can be directly applicable in virtual garment simulation.

Description

technical field [0001] The invention relates to the field of computer-aided geometric design (CAGD), in particular to a method for designing a human body model. Background technique [0002] Parametric design is a topic proposed in the practical application of computer-aided design (CAD) technology, which can make the CAD system have interactive or automatic drawing functions, making the model design quite flexible. In the field of CAD, the scope of application of parametric design is quite wide, ranging from the design of complex molds to simple geometric shapes, all of which can reflect its ideas. The use of parametric design methods to design model products can increase the design speed, reduce the amount of information storage, and can greatly improve the flexibility and diversity of model design. For the above reasons, the use of parametric design of human body models has attracted great interest. [0003] So far, many studies on parametrically designed human models h...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a human body model design method based on hybrid interpolation parameterization, so that the human body model maintains C1 continuity after global parameterization, and allows the model to be finely adjusted locally, thereby Solve the problem of smoothness after model parameterization, and enable the parameterized human body model to be directly applied to virtual clothing simulation

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