CountLLM: Towards Generalizable Repetitive Action Counting via Large Language Model

Fuente: arXiv
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Autores principales: Yao, Ziyu, Cheng, Xuxin, Huang, Zhiqi, Li, Lei
Formato: Preprint
Publicado: 2025
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author Yao, Ziyu
Cheng, Xuxin
Huang, Zhiqi
Li, Lei
author_facet Yao, Ziyu
Cheng, Xuxin
Huang, Zhiqi
Li, Lei
contents Repetitive action counting, which aims to count periodic movements in a video, is valuable for video analysis applications such as fitness monitoring. However, existing methods largely rely on regression networks with limited representational capacity, which hampers their ability to accurately capture variable periodic patterns. Additionally, their supervised learning on narrow, limited training sets leads to overfitting and restricts their ability to generalize across diverse scenarios. To address these challenges, we propose CountLLM, the first large language model (LLM)-based framework that takes video data and periodic text prompts as inputs and outputs the desired counting value. CountLLM leverages the rich clues from explicit textual instructions and the powerful representational capabilities of pre-trained LLMs for repetitive action counting. To effectively guide CountLLM, we develop a periodicity-based structured template for instructions that describes the properties of periodicity and implements a standardized answer format to ensure consistency. Additionally, we propose a progressive multimodal training paradigm to enhance the periodicity-awareness of the LLM. Empirical evaluations on widely recognized benchmarks demonstrate CountLLM's superior performance and generalization, particularly in handling novel and out-of-domain actions that deviate significantly from the training data, offering a promising avenue for repetitive action counting.
format Preprint
id arxiv_https___arxiv_org_abs_2503_17690
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle CountLLM: Towards Generalizable Repetitive Action Counting via Large Language Model
Yao, Ziyu
Cheng, Xuxin
Huang, Zhiqi
Li, Lei
Computer Vision and Pattern Recognition
Repetitive action counting, which aims to count periodic movements in a video, is valuable for video analysis applications such as fitness monitoring. However, existing methods largely rely on regression networks with limited representational capacity, which hampers their ability to accurately capture variable periodic patterns. Additionally, their supervised learning on narrow, limited training sets leads to overfitting and restricts their ability to generalize across diverse scenarios. To address these challenges, we propose CountLLM, the first large language model (LLM)-based framework that takes video data and periodic text prompts as inputs and outputs the desired counting value. CountLLM leverages the rich clues from explicit textual instructions and the powerful representational capabilities of pre-trained LLMs for repetitive action counting. To effectively guide CountLLM, we develop a periodicity-based structured template for instructions that describes the properties of periodicity and implements a standardized answer format to ensure consistency. Additionally, we propose a progressive multimodal training paradigm to enhance the periodicity-awareness of the LLM. Empirical evaluations on widely recognized benchmarks demonstrate CountLLM's superior performance and generalization, particularly in handling novel and out-of-domain actions that deviate significantly from the training data, offering a promising avenue for repetitive action counting.
title CountLLM: Towards Generalizable Repetitive Action Counting via Large Language Model
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.17690