Title: Maximizing Asynchronicity in Event-based Neural Networks
Primary area: unsupervised, self-supervised, semi-supervised, and supervised representation learning
Keywords: event camera, self-supervised learning, linear attention, linear RNN, neural network architectures

Abstract: Event cameras deliver visual data with high temporal resolution, low latency, and minimal redundancy, yet their asynchronous, sparse sequential nature challenges standard tensor-based machine learning (ML). While the recent  asynchronous-to-synchronous (A2S) paradigm aims to bridge this gap by asynchronously encoding events into learned features for ML pipelines, existing A2S approaches often sacrifice expressivity and generalizability compared to dense, synchronous methods. This paper introduces EVA (EVent Asynchronous feature learning), a novel A2S framework to generate highly expressive and generalizable event-by-event features. Inspired by the analogy between events and language, EVA uniquely adapts advances from language modeling in linear attention and self-supervised learning for its construction. In demonstration, EVA outperforms prior A2S methods on recognition tasks (DVS128-Gesture and N-Cars), and represents the first A2S framework to successfully master demanding detection tasks, achieving a 47.7 mAP on the Gen1 dataset. These results underscore EVA's potential for advancing real-time event-based vision applications.

TL;DR: A new A2S framework inspired by NLP for learning and generating expressive and generalizable event features asynchronously.