Human body section ring based parametric deformation method

Abstract

A human body section ring based parametric deformation method is characterized in that a human body model is organized into a section ring data structure, the whole modeling process only needs 13 commonly used human body measurement parameters, the measurement parameters are mapped with human body section rings to define a deformation function, parametric deformation is performed on the section rings, and surface optimization is performed on the deformed model, so that human body deformation with a good sense of reality can be achieved. The human body section ring based parametric deformation method includes the steps of (1) parameterizing a human body triangular patch model into a section ring data structure which is used as a standard human body model of follow-up parametric deformation; (2) mapping the selected human body measurement parameters to the human body section ring data structure; (3) defining the deformation function, and performing parametric deformation on the section rings in each part; (4) performing surface optimization on the deformed model, reconstructing section ring data into a triangular mesh structure, and rendering the deformed human body model.

Description

technical field [0001] The invention relates to a parametric deformation method based on a human body section ring, and belongs to the technical field of three-dimensional modeling of a real human body. Background technique [0002] 3D human body modeling is an important part of virtual reality technology, which is widely used in games, movies, clothing design, medical research and other application fields. Parametric human modeling is also known as variable modeling. First, perform preprocessing such as model simplification on the models in the human body model database (usually scanned), and generate a series of human body templates and standard human body models. Then, according to the personalized human body size parameters, a simplified target human body model is obtained by performing parameterized deformation methods such as size deformation or template interpolation on the standard human body model, and finally a serialized and personalized human body model can be o...

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Problems solved by technology

[0005] (1) The wireframe model simplifies the calculation of deformation and triangular mesh reconstruction, but there is a large gap between the feature lines, which requires statistics and complex surface reconstruction algorithms, which is not efficient

[0006] (2) Compared with the wireframe model, the method of layered model has a higher sense of reality, but the efficiency of deformation operation and skin surface reconstruction becomes lower.

[0007] (3) If the model is not simplified, the calculation of the whole system is quite large

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