Event-based data are commonly encountered in edge computing environments where efficiency and low latency are critical. To interface with such data and leverage their rich temporal features, we propose a causal spatiotemporal convolutional network. This solution targets efficient implementation on edge-appropriate hardware with limited resources in three ways: 1) deliberately targets a simple architecture and set of operations (convolutions, ReLU activations) 2) can be configured to perform online inference efficiently via buffering of layer outputs 3) can achieve more than 90% activation sparsity through regularization during training, enabling very significant efficiency gains on event-based processors. In addition, we propose a general affine augmentation strategy acting directly on the events, which alleviates the problem of dataset scarcity for event-based systems. We apply our model on the AIS 2024 event-based eye tracking challenge, reaching a score of 0.9916 p10 accuracy on the Kaggle private testset.

基于事件的数据在边缘计算环境中十分常见，我们提出了一种因果时空卷积网络，以实现与这些数据的接口和利用丰富的时态特征，并通过简单的架构和操作（卷积、ReLU激活）及在线推断效率配置、通过规范化训练实现超过90%的激活稀疏度，从而在基于事件的处理器上实现极大的效率增益。此外，我们还提出了一种直接作用于事件的通用仿射增强策略，缓解了基于事件的系统中数据集稀缺的问题。我们将该模型应用于AIS 2024基于事件的视觉注视挑战，并在Kaggle私人测试集上达到了0.9916的P10准确率。

一种基于事件相机的在线眼动跟踪的轻量级时空网络