Abstract
Human activity recognition (HAR) has become an active research topic in the various fields. Depth sensor-based HAR recognizes human activities using features from depth human silhouettes via classifiers such as Hidden Markov Model (HMM), Conditional Random Fields Model etc. In this paper, we propose a new HAR system via Convolutional Neural Network (CNN), one of deep learning algorithms. We extract joint angles from multiple body joints changing in time and create a spatiotemporal feature matrix (i.e., multiple body joint angles in time). With these derived features, we train and test our CNN for HAR. In order to evaluate our system, we have compared the performance of our CNN-based HAR against the HMM- and Deep Belief Network (DBN)-based HAR using a database of Microsoft Research Cambridge-12 (MSRC-12). Our test results show that the proposed CNN-based HAR is able to recognize twelve human activities reliably and it outperforms the HMM- and DBN-based systems. We have achieved the average recognition accuracy of 98.59% for the activities. The results are 6.1% more accurate than that of the HMM-based HAR and 1.05% more accurate than that of the DBN-based HAR.
| Original language | English |
|---|---|
| Title of host publication | 6th International Conference on the Development of Biomedical Engineering in Vietnam, BME6 |
| Editors | Toi Vo Van, Thanh An Nguyen Le, Thang Nguyen Duc |
| Publisher | Springer Verlag |
| Pages | 541-545 |
| Number of pages | 5 |
| ISBN (Print) | 9789811043604 |
| DOIs | |
| State | Published - 2018 |
| Externally published | Yes |
| Event | 6th International Conference on the Development of Biomedical Engineering in Vietnam, BME 2016 - Ho Chi Minh, Viet Nam Duration: 27 Jun 2016 → 29 Jun 2016 |
Publication series
| Name | IFMBE Proceedings |
|---|---|
| Volume | 63 |
| ISSN (Print) | 1680-0737 |
Conference
| Conference | 6th International Conference on the Development of Biomedical Engineering in Vietnam, BME 2016 |
|---|---|
| Country/Territory | Viet Nam |
| City | Ho Chi Minh |
| Period | 27/06/16 → 29/06/16 |
Bibliographical note
Publisher Copyright:© Springer Nature Singapore Pte Ltd. 2018.
Keywords
- Convolutional neural network
- Deep learning
- Depth imaging sensor
- Human activity recognition
ASJC Scopus subject areas
- Bioengineering
- Biomedical Engineering
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