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Human body motion animation generating method and system of two-dimensional virtual figure

A virtual image and human body movement technology, applied in animation production, instruments, calculations, etc., can solve the problems of spending a lot of time and energy, and the randomness of movement rhythm lacks authenticity, etc., and achieve the effect of small amount of real-time calculation

Active Publication Date: 2018-06-29
深圳市云之梦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have high technical requirements for animators, need to spend a lot of time and energy, and lack of reality in terms of flexible deformation of human body and clothing and randomness of action rhythm

Method used

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  • Human body motion animation generating method and system of two-dimensional virtual figure
  • Human body motion animation generating method and system of two-dimensional virtual figure
  • Human body motion animation generating method and system of two-dimensional virtual figure

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Embodiment 1

[0064] This embodiment provides a method for generating a human body motion animation of a two-dimensional virtual image, including, a method for generating a human body motion animation of a two-dimensional virtual image, characterized in that, comprising:

[0065] Shoot live action videos;

[0066] Extract the initial frame image of the video;

[0067] The initial frame image is used for corner detection;

[0068] Calculate sparse feature point optical flow frame by frame;

[0069] Calculate 2D mesh deformation;

[0070] Compute the modal mesh and weight sequence;

[0071] Modal meshes and edits made by weight sequences;

[0072] Animate avatars using isomorphic 2d meshes.

[0073] In a preferred embodiment, in this embodiment, a live action video is shot, the real person wears clothes, the initial posture is the same as that of the avatar, and the shooting angle of view is the same as the vision of the avatar.

[0074] In a preferred embodiment, in this embodiment, the ...

Embodiment 2

[0125] This embodiment provides a method for generating a human body motion animation of a two-dimensional virtual image, including, a method for generating a human body motion animation of a two-dimensional virtual image, characterized in that, comprising:

[0126] Shoot live action videos;

[0127] Extract the initial frame image of the video;

[0128] The initial frame image is used for corner detection;

[0129] Calculate sparse feature point optical flow frame by frame;

[0130] Calculate 2D mesh deformation;

[0131] Compute the modal mesh and weight sequence;

[0132] Modal meshes and edits made by weight sequences;

[0133] Animate avatars using isomorphic 2d meshes.

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Abstract

The invention provides a human bod motion animation generating method of a two-dimensional virtual figure. The human body motion animation generating method comprises the steps of shooting a real person motion video; extracting an initial frame image of the video; detecting the angular point of the initial frame image; calculating a sparse characteristic point light stream frame by frame; calculating 2D grid deformation; calculating a modal grid and a weight sequence; editing the modal grid and the weight sequence; using an isomorphic 2d grid to conduct animation rendering on the virtual figure. According to the technical scheme, compared with a purely manually made animation, since motions come from the real person video, the animation is more vivid, and particularly, it is very difficultto achieve the authenticity of the deformation and the rhythm randomness of the motions through a manual method; the 2d figure has a certain stereoscopic effect, the animation effect can be adjustedaccording to requirements through manual modification simply with the isomorphic grid, the same motion data can adapt to different figures of different body types, different skins, different clothes and different icons, and when the animation is applied, the real-time calculation amount is small.

Description

technical field [0001] The invention relates to the field of computer graphic animation, in particular to a method and system for generating a human body motion animation for displaying a two-dimensional virtual image in virtual fittings, games, and film and television. Background technique [0002] With the continuous development of science and technology, animation is gradually integrated into life, which greatly affects the way people live and work. At present, animation has been widely used in many important fields such as virtual fitting, film and television, advertisement, game, and computer-aided education. [0003] Animation refers to a work in which many frames of static pictures are continuously played at a certain speed (such as 16 frames per second), and the naked eye will mistakenly think that the picture is moving due to the illusion of vision. In order to get the moving picture, there will be slight changes between each picture. [0004] In order to make the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T13/80
CPCG06T13/80
Inventor 高学星吕江波蒋念娟
Owner 深圳市云之梦科技有限公司
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