论文标题
MotionMixer：基于MLP的3D人体姿势预测
MotionMixer: MLP-based 3D Human Body Pose Forecasting
论文作者
论文摘要
在这项工作中，我们提出了MotionMixer，这是一个有效的3D人体姿势预测模型，仅基于多层感知器（MLP）。 MotionMixer通过依次混合这两种方式来学习时空3D体姿势依赖性。给定3D身体姿势的堆叠序列，空间MLP提取物是身体关节的细粒空间依赖性。然后，随着时间的推移，身体关节的相互作用由时间MLP建模。空间上的混合特征最终被聚集并解码以获得未来的运动。为了校准姿势序列中每个时间步的影响，我们利用挤压和兴奋（SE）块。我们使用标准评估协议评估了36M，Amass和3DPW数据集的方法。对于所有评估，我们将展示最先进的性能，同时具有较少参数的模型。我们的代码可在以下网址找到：https：//github.com/motionmlp/motionmixer
In this work, we present MotionMixer, an efficient 3D human body pose forecasting model based solely on multi-layer perceptrons (MLPs). MotionMixer learns the spatial-temporal 3D body pose dependencies by sequentially mixing both modalities. Given a stacked sequence of 3D body poses, a spatial-MLP extracts fine grained spatial dependencies of the body joints. The interaction of the body joints over time is then modelled by a temporal MLP. The spatial-temporal mixed features are finally aggregated and decoded to obtain the future motion. To calibrate the influence of each time step in the pose sequence, we make use of squeeze-and-excitation (SE) blocks. We evaluate our approach on Human3.6M, AMASS, and 3DPW datasets using the standard evaluation protocols. For all evaluations, we demonstrate state-of-the-art performance, while having a model with a smaller number of parameters. Our code is available at: https://github.com/MotionMLP/MotionMixer
