Towards Long-Form Video Understanding

CVPR 2021  ·  Chao-yuan Wu, Philipp Krähenbühl ·

Our world offers a never-ending stream of visual stimuli, yet today's vision systems only accurately recognize patterns within a few seconds. These systems understand the present, but fail to contextualize it in past or future events. In this paper, we study long-form video understanding. We introduce a framework for modeling long-form videos and develop evaluation protocols on large-scale datasets. We show that existing state-of-the-art short-term models are limited for long-form tasks. A novel object-centric transformer-based video recognition architecture performs significantly better on 7 diverse tasks. It also outperforms comparable state-of-the-art on the AVA dataset.

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Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Benchmark
Action Recognition AVA v2.2 Object Transformer mAP 31.0 # 26

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