Temporal Sentence Grounding in Streaming Videos

• URL: http://arxiv.org/abs/2308.07102v1
• Date: Mon, 14 Aug 2023 12:30:58 GMT
• Title: Temporal Sentence Grounding in Streaming Videos
• Authors: Tian Gan, Xiao Wang, Yan Sun, Jianlong Wu, Qingpei Guo, and Liqiang Nie
• Abstract summary: This paper aims to tackle a novel task - Temporal Sentence Grounding in Streaming Videos (TSGSV) The goal of TSGSV is to evaluate the relevance between a video stream and a given sentence query. We propose two novel methods: (1) a TwinNet structure that enables the model to learn about upcoming events; and (2) a language-guided feature compressor that eliminates redundant visual frames.
• Score: 60.67022943824329
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper aims to tackle a novel task - Temporal Sentence Grounding in Streaming Videos (TSGSV). The goal of TSGSV is to evaluate the relevance between a video stream and a given sentence query. Unlike regular videos, streaming videos are acquired continuously from a particular source, and are always desired to be processed on-the-fly in many applications such as surveillance and live-stream analysis. Thus, TSGSV is challenging since it requires the model to infer without future frames and process long historical frames effectively, which is untouched in the early methods. To specifically address the above challenges, we propose two novel methods: (1) a TwinNet structure that enables the model to learn about upcoming events; and (2) a language-guided feature compressor that eliminates redundant visual frames and reinforces the frames that are relevant to the query. We conduct extensive experiments using ActivityNet Captions, TACoS, and MAD datasets. The results demonstrate the superiority of our proposed methods. A systematic ablation study also confirms their effectiveness.

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