Fast online action detection by storing past data relevant now
Fast online action detection by storing past data relevant now
Information Elevation Network for Fast Online Action Detection
arXiv paper abstract https://arxiv.org/abs/2109.13572v1
arXiv PDF paper https://arxiv.org/pdf/2109.13572v1.pdf
Online action detection (OAD) is a task that receives video segments within a streaming video as inputs and identifies ongoing actions within them.
… However, long short-term memory (LSTM), a popular recurrent unit for modeling temporal information from videos, accumulates past information … without considering the relationships between the past and current information.
… introduce a novel information elevation unit (IEU) that lifts up and accumulate the past information relevant to the current action
… design … an information elevation network (IEN). … uses visual features extracted by a fast action recognition network taking only RGB frames because extracting optical flows requires heavy computation …
… IEN outperforms state-of-the-art OAD methods using only RGB frames.
… IEN outperforms the state-of-the-art OAD methods using two-stream features based on RGB frames and optical flows.
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