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A method and system for generating human motion animation of two-dimensional virtual image

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: 2022-07-12
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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  • A method and system for generating human motion animation of two-dimensional virtual image
  • A method and system for generating human motion animation of two-dimensional virtual image
  • A method and system for generating human motion animation of two-dimensional virtual image

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Embodiment 1

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

[0065] Shoot live action videos;

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

[0067] Corner detection is performed on the initial frame image;

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

[0069] Calculate 2D mesh deformation;

[0070] Calculate modal grids and weight sequences;

[0071] Modal meshes and editing of weight sequences;

[0072] Animate avatars using isomorphic 2d meshes.

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

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

Embodiment 2

[0123] This embodiment provides a method for generating a human motion animation of a two-dimensional virtual image, including a method for generating a human motion animation of a two-dimensional virtual image, which is characterized in that it includes:

[0124] Shoot live action videos;

[0125] Extract the initial frame image of the video;

[0126] Corner detection is performed on the initial frame image;

[0127] Calculate sparse feature point optical flow frame by frame;

[0128] Calculate 2D mesh deformation;

[0129] Calculate modal grids and weight sequences;

[0130] Modal meshes and editing of weight sequences;

[0131] Animate avatars using isomorphic 2d meshes.

[0132] In a preferred embodiment, in this embodiment, a real action video is shot, the real person wears clothing with distinctive feature point patterns, the initial posture is the same as that of the avatar, the shooting angle is the same as the vision of the avatar, and a solid color background is...

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Abstract

A method for generating human action animation of a two-dimensional virtual image, which is characterized in that the method comprises: shooting a live action video; extracting an initial frame image of the video; performing corner detection on the initial frame image; calculating sparse feature point optical flow frame by frame; Mesh deformation; calculation of modal meshes and weight sequences; editing of modal meshes and weight sequences; animation rendering of avatars using isomorphic 2d meshes. Compared with purely manual animations, this technical solution is more vivid and lifelike because the actions come from live videos, especially the authenticity of the deformation and the randomness of the rhythm of the actions, which are difficult to achieve by manual methods; and the 2D image has a certain three-dimensional effect. , the animation effect can be adjusted by manual modification according to the needs. Only the same configuration grid is required. The same set of motion data can be adapted to different images of different body shapes, different skins, different clothing, and different avatars. When animation is applied, the real-time calculation amount Small.

Description

technical field [0001] The invention relates to the field of computer graphics animation, in particular to a method and a system for generating human motion animation for displaying a two-dimensional virtual image in virtual fitting, games, films and the like. 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, computer-aided education and so on. [0003] Animation refers to a work in which many frames of still pictures are played continuously at a certain speed (such as 16 frames per second), and the naked eye creates an illusion due to vision, and mistakenly thinks that the picture is moving. 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 Patents(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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