Accuracy Analysis of DNN-Based Pose-Categorization Model and Activity-Decision Algorithm

Bo Rang Park, Eun Ji Choi, Young Jae Choi and Jin Woo Moon
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Bo Rang Park: School of Architecture and Building Science, Chung-Ang University, Seoul 06974, Korea
Eun Ji Choi: School of Architecture and Building Science, Chung-Ang University, Seoul 06974, Korea
Young Jae Choi: School of Architecture and Building Science, Chung-Ang University, Seoul 06974, Korea
Jin Woo Moon: School of Architecture and Building Science, Chung-Ang University, Seoul 06974, Korea

Energies, 2020, vol. 13, issue 4, 1-14

Abstract: The objective of this study is to develop (1) a pose-categorization model that classifies the poses of an occupant based on their image in an indoor space and (2) an activity-decision algorithm that identifies the activity being performed by the occupant. For developing an automated intelligent model, a deep neural network is adopted. The model considers the coordinates of the joints of the occupant in the image as input data and returns the pose of the occupant. Datasets composed of indoor images of home and office environments are used for training and testing the model. The training and testing accuracies of the optimized model were 100% for both the home and office environments. A representative activity of an occupant for a certain period has to be decided to control an indoor environment for comfort. The activity-decision algorithm employs a frequency-based method to determine the representative activity type for real-time occupant poses using the pose-categorization model. This study highlights the potential of the developed model and algorithm to determine the activity of occupants to provide an optimal thermal environment corresponding to the individual’s metabolic rate.

Keywords: metabolic rate; indoor environment; human pose estimation; deep neural network (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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