Attention-based encoder-decoder networks for workflow recognition

Behavior recognition is a fundamental yet challenging task in intelligent surveillance system, which plays an increasingly important role in the process of “Industry 4.0”. However, monitoring the workflow of both workers and machines in production procedure is quite difficult in complex industrial e...

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Veröffentlicht in:Multimedia tools and applications 2021-11, Vol.80 (28-29), p.34973-34995
Hauptverfasser: Zhang, Min, Hu, Haiyang, Li, Zhongjin, Chen, Jie
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container_title Multimedia tools and applications
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creator Zhang, Min
Hu, Haiyang
Li, Zhongjin
Chen, Jie
description Behavior recognition is a fundamental yet challenging task in intelligent surveillance system, which plays an increasingly important role in the process of “Industry 4.0”. However, monitoring the workflow of both workers and machines in production procedure is quite difficult in complex industrial environments. In this paper, we propose a novel workflow recognition framework to recognize the behavior of working subjects based on the well-designed encoder-decoder structure. Namely, attention-based workflow recognition framework, termed as AWR. To improve the accuracy of workflow recognition, a temporal attention cell ( AttCell ) is introduced to draw dynamic attention distribution in the last stage of the framework. In addition, a Rough-to-Refine phase localization model is exploited to improve localization accuracy, which can effectively identify the boundaries of a specific phase instance in long untrimmed videos. Comprehensive experiments indicate a 1.4% mAP@IoU= 0.4 boost on THUMOS’14 dataset and a 3.4% mAP@IoU= 0.4 boost on hand-crafted workflow dataset detection challenge compared to the advanced GTAN pipeline respectively. More remarkably, the effectiveness of the workflow recognition system is validated in a real-world production scenario.
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subjects 1166- Advances of machine learning in data analytics and visual information processing
Coders
Computer Communication Networks
Computer Science
Data Structures and Information Theory
Datasets
Encoders-Decoders
Localization
Multimedia Information Systems
Recognition
Special Purpose and Application-Based Systems
Workflow
title Attention-based encoder-decoder networks for workflow recognition
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