Motion editing method based on four-dimensional spherical trajectory

A motion editing and trajectory technology, applied in the field of motion capture, can solve the problems of heavy workload, correction algorithm motion distortion, and human factors account for a large proportion, so as to reduce the workload and solve the effect of motion distortion.

Inactive Publication Date: 2015-02-18
XIAMEN UNIV
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Problems solved by technology

[0011] The purpose of the embodiments of the present invention is to provide a motion editing method based on a four-dimensional spherical trajectory, aiming to solve the problem of relying on manual completion in the existing motion editing method, the workload is large, the proportion of human factors is large, and the motion distortion of the correction algorithm is solved. question

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  • Motion editing method based on four-dimensional spherical trajectory
  • Motion editing method based on four-dimensional spherical trajectory
  • Motion editing method based on four-dimensional spherical trajectory

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Embodiment 1

[0051] Example 1: There are three ways to represent the rotation orientation of bones: rotation matrix representation, Euler angle representation, and quaternion representation. In order to obtain a more realistic editing effect, the rotation orientation of bones should be mapped to a In the area of ​​smooth and continuous transformation, the present invention uses quaternion notation to describe the rotation orientation of bones. In the mathematical sense of extension, each quaternion corresponds to a point on the four-dimensional spherical surface. The present invention utilizes the initial rotation orientation of bones The trajectory between two points corresponding to the rotation orientation of each frame is used to map the variable domain to realize the editing of the motion capture data;

[0052] For the input sequence, assume that the quaternion corresponding to the initial orientation of the i-th bone is expressed as P i , then the four-dimensional spherical connectio...

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Abstract

The invention discloses a motion editing method based on a four-dimensional spherical trajectory. The motion editing method include selecting a high-level semantic feature, namely a skeleton rotation direction, of a motion as a feature of an editing algorithm to input, and mapping a variable domain of the feature to the continuous four-dimensional spherical trajectory to perform parameter editing to realize style editing of motion capture data. The motion editing method has the advantages that conciseness, visualization and high efficiency are realized; animators can create animation products with unique styles on the condition of selecting proper skeleton and curve parameters by the method, and workload is lowered; through correction of displacement data of root joints of the whole global schedule, a root joint motion trajectory of a human body conforms to physical laws, so that the problem of motion distortion in existing correction algorithms is solved.

Description

technical field [0001] The invention belongs to the technical field of motion capture, in particular to a motion editing method based on a four-dimensional spherical trajectory. Background technique [0002] In recent years, the animation industry represented by animation, comics, and online games has become a new economic growth point in developed countries. The world's animation industry is mainly concentrated in Europe, America, Japan, and Korea. The United States is one of the earliest and major developing countries. Its animation industry has taken the lead in the global animation industry; Japan, as a major exporter of animation products, occupies an important position in the international market with its strict industrial chain structure and mature operating mechanism. In developed countries, the animation industry is not only important, but also It is one of the pillar industries, and the total annual market is tens of billions or even hundreds of billions of dollars...

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Application Information

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IPC IPC(8): G06T13/40
CPCG06T13/40G06T2213/12
Inventor 吴清锋张仲楠董槐林何志甘史亮
Owner XIAMEN UNIV
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