Centre for Vision Speech and Signal Processing, Electronic Engineering, University of Surrey, GU2 7XH Guildford, United Kingdom.
IEEE Trans Vis Comput Graph. 2013 May;19(5):762-73. doi: 10.1109/TVCG.2012.314.
A 4D parametric motion graph representation is presented for interactive animation from actor performance capture in a multiple camera studio. The representation is based on a 4D model database of temporally aligned mesh sequence reconstructions for multiple motions. High-level movement controls such as speed and direction are achieved by blending multiple mesh sequences of related motions. A real-time mesh sequence blending approach is introduced, which combines the realistic deformation of previous nonlinear solutions with efficient online computation. Transitions between different parametric motion spaces are evaluated in real time based on surface shape and motion similarity. Four-dimensional parametric motion graphs allow real-time interactive character animation while preserving the natural dynamics of the captured performance.
提出了一种 4D 参数化运动图表示方法，用于在多相机工作室中从演员表演捕获进行交互式动画。该表示基于针对多个运动的时间对齐网格序列重建的 4D 模型数据库。通过混合多个相关运动的网格序列来实现高级运动控制，例如速度和方向。引入了一种实时网格序列混合方法，该方法将先前非线性解的真实变形与高效的在线计算相结合。基于曲面形状和运动相似性，实时评估不同参数化运动空间之间的转换。4D 参数化运动图允许实时交互式角色动画，同时保留捕获性能的自然动态。
