Spatio-temporal protected merging for efficient text-video retrieval

Li Binyan1
Su Hai2
Wang Hongsong1
Hu Xiaoming1
1. South China Normal University, School of Artificial Intelligence, Guangzhou 510631, China
2. Guangzhou Maritime University, School of Artificial Intelligence, Guangzhou 510530, China

Abstract

Existing token merging methods lose fine-grained details and neglect temporal dynamics due to undifferentiated matching. To address these limitations, this study developed a Spatio-Temporal Protected Merging (Spatio-Temporal Protected Merging, ST-ProMe) framework. The framework quantified token importance from a spatio-temporal energy perspective. In the spatial dimension, it identified salient entities via deviations from background anchors. In the temporal dimension, it captured key actions through feature mutations between adjacent frames. ST-ProMe explicitly protected high-energy semantic tokens and prioritized merging low-energy background tokens. It then gradually compressed adjacent clips via a progressive multi-granularity mechanism. Experiments on multiple benchmark datasets showed that ST-ProMe reduced GFLOPs by 45% and token count by 84% compared to the baseline. It also accelerated training speed by 1.5× and improved the overall retrieval metric RSUM by 14.2%. This method successfully harmonizes retrieval accuracy and computational efficiency in text-video retrieval.

Foundation Support

广东省基础与应用基础研究基金资助项目(2022A1515140110)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2026.06.0184
Publish at: Application Research of Computers Accepted Paper, Vol. 44, 2027 No. 2

Publish History

[2026-10-23] Accepted Paper

Cite This Article

李斌彦, 苏海, 汪红松, 等. 基于时空保护合并的高效文本-视频检索 [J]. 计算机应用研究, 2027, 44 (2). (2026-10-24). https://doi.org/10.19734/j.issn.1001-3695.2026.06.0184. (Li Binyan, Su Hai, Wang Hongsong, et al. Spatio-temporal protected merging for efficient text-video retrieval [J]. Application Research of Computers, 2027, 44 (2). (2026-10-24). https://doi.org/10.19734/j.issn.1001-3695.2026.06.0184. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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