Fast online action detection by storing past data relevant now
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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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