CG Model Motion Control for Natural Tempo Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for controlling the movement of 3D computer graphics (CG) models fail to produce natural motion when the tempo changes, leading to unnatural transitions between different motions.
Innovation Solution
A device and method that generates specific data for varying tempos by merging motion data based on predetermined parameters, such as BPM, allowing for smooth transitions between different poses and motions, enabling natural movement even when tempo changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If speed reproduction technology (double-speed playback) is used to change the tempo of CG model movement, then the tempo can be changed, but the movement does not look natural because the content of the motion is not changed
Solution Approach 1:
The patent applies dynamics by making the CG model's motion content adaptable to tempo changes. Instead of using fixed motion data, the system dynamically switches between multiple motion data sets (first motion data for normal tempo, second motion data for fast tempo) based on the current playback speed, allowing the motion content itself to change with tempo while maintaining natural appearance
Solution Approach 2:
The patent changes the parameter of motion content by selecting different motion data sets based on playback speed. When playback speed exceeds a threshold, the system changes from using first motion data to second motion data, effectively changing the motion parameters to match the accelerated tempo and maintain natural movement appearance
2Reliability
If the content of motion is changed to match tempo changes, then natural movement can be achieved, but the complexity of the system increases due to multiple motion data sets
Solution Approach 1:
The patent uses feedback by continuously monitoring the playback speed and automatically switching between motion data sets based on whether the playback speed exceeds the threshold. This automated feedback mechanism manages the complexity of having multiple motion data sets by using simple speed-based decision logic rather than complex manual control
Solution Approach 2:
The patent makes the motion reproduction system multi-functional by enabling it to handle both normal tempo and fast tempo playback using a unified framework. The same playback device and control logic work for both tempo conditions, with the only difference being the selection of motion data sets, thus reducing overall system complexity
Data Source
AI summary
The present invention is designed so that, even when a CG model moves with a tempo, it is possible to realize natural movement. The device according to one aspect of the present invention has a control section that exerts control so that specific data, which corresponds to a case where a predetermined parameter has a specific value, is generated using a plurality of pieces of data corresponding to respective cases where the predetermined parameter has different values, and a playback section that reproduces a predetermined computer graphics (CG) model based on the specific data.