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arXiv · 2103.11645

AET-EFN: A Versatile Design for Static and Dynamic Event-Based Vision

Chang Liu·Xiaojuan Qi·Edmund Lam·Ngai Wong
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Abstract

The neuromorphic event cameras, which capture the optical changes of a scene, have drawn increasing attention due to their high speed and low power consumption. However, the event data are noisy, sparse, and nonuniform in the spatial-temporal domain with an extremely high temporal resolution, making it challenging to design backend algorithms for event-based vision. Existing methods encode events into point-cloud-based or voxel-based representations, but suffer from noise and/or information loss. Additionally, there is little research that systematically studies how to handle static and dynamic scenes with one universal design for event-based vision. This work proposes the Aligned Event Tensor (AET) as a novel event data representation, and a neat framework called Event Frame Net (EFN), which enables our model for event-based vision under static and dynamic scenes. The proposed AET and EFN are evaluated on various datasets, and proved to surpass existing state-of-the-art methods by large margins. Our method is also efficient and achieves the fastest inference speed among others.

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Chang Liu, Xiaojuan Qi, Edmund Lam, Ngai Wong. 2021-03-22. AET-EFN: A Versatile Design for Static and Dynamic Event-Based Vision. https://arxiv.org/abs/2103.11645

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