Video Animation Generation Using Control Point Offsets
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Solution Overview
Problem
Conventional methods for generating video animations are inefficient due to high calculation amounts and long generation times, limiting their application scope.
Innovation Solution
A method and apparatus that generate video animations by determining user commands, calculating offsets for control points in each frame based on motion coefficients, and producing animations without the need for a grid model or symbol system, allowing for faster generation and broader application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a grid model based on facial musculature and a symbol system are established to generate video animation, then the video animation can be generated with rich expression forms, but the calculation amount becomes very large and the generation time becomes long
Solution Approach 1:
The patent extracts only the essential elements needed for animation generation - specifically control points and their offsets - from the complex grid model and symbol system. By taking out only the necessary components (control points representing key facial features and their displacement offsets) rather than processing the entire facial musculature grid, the calculation amount is dramatically reduced while still achieving rich expression forms through coordinated movement of these extracted control points.
2Adaptability or versatility
If a grid model based on facial musculature and a symbol system are established to generate video animation, then the video animation can be generated with rich expression forms, but the calculation amount becomes very large
Solution Approach 1:
The patent extracts only the essential elements needed for animation generation - specifically control points and their offsets - from the complex grid model and symbol system. By taking out only the necessary components (control points representing key facial features and their displacement offsets) rather than processing the entire facial musculature grid, the calculation amount is dramatically reduced while still achieving rich expression forms through coordinated movement of these extracted control points.
Solution Approach 2:
The patent segments the facial animation problem into discrete control points representing key facial features (eyes, eyebrows, mouth, etc.) rather than processing the continuous and complex facial musculature grid. Each control point can be independently manipulated with its offset, allowing complex facial expressions to be constructed from simple, segmented control point movements, thereby reducing overall calculation complexity.
Data Source
AI summary
The examples of the present invention provide a method and apparatus for generating a video animation, and the method and apparatus relate to the animation field. The method includes: receiving a command sent by a user, determining an action corresponding to the command according to the command, and determining the total number of frames corresponding to the action and a motion coefficient of each frame; calculating an offset of each control point in each frame according to the motion coefficient of each frame, and generating a video animation according to the offset of each control point in each frame and the total number of frames. An apparatus for generating a video animation is also provided.