Abstract
The implementation of a micro-expression detection system introduces challenges to sustain a real time recognition result. In order to surmount these problems, this paper examines the algorithm of a serial Local Binary Pattern from Three Orthogonal Planes (LBP-TOP) in order to identify the performance limitations for real time system. Videos from SMIC and CASMEII were up sampled to higher resolutions (280×340, 560×680 and 1120×1360) to cater the need of real life implementation. Then, a parallel multicore-based LBP-TOP algorithm is studied as a benchmark. Experimental results show that the parallel LBP-TOP algorithm exhibits 7× and 8× speedup against serial LBP-TOP for SMIC and CASMEII database respectively for the highest tested video resolution utilising 24- logical processor multi-core architecture. To further reduce the computational time, this paper also proposes a many-core parallel LBP-TOP algorithm using Compute Unified Device Architecture (CUDA). In addition, a method is designed to calculate the threads and blocks required to launch the kernel when processing videos from different resolutions. The proposed algorithm increases the performance speedup to 117× and 130× against the serial algorithm for the highest tested resolution videos.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - Ninth Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017 |
| Editors | Chang-Su Kim, Wai Lam Hoo |
| Place of Publication | Piscataway NJ USA |
| Publisher | IEEE, Institute of Electrical and Electronics Engineers |
| Pages | 309-315 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781538615423, 9781538615430 |
| ISBN (Print) | 9781538615430 |
| DOIs | |
| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | Annual Summit and Conference of the Asia-Pacific-Signal-and-Information-Processing-Association (APSIPA) 2017 - Kuala Lumpur, Malaysia Duration: 12 Dec 2017 → 15 Dec 2017 Conference number: 9th https://ieeexplore.ieee.org/xpl/conhome/8270695/proceeding (Proceedings) |
Conference
| Conference | Annual Summit and Conference of the Asia-Pacific-Signal-and-Information-Processing-Association (APSIPA) 2017 |
|---|---|
| Abbreviated title | APSIPA ASC 2017 |
| Country/Territory | Malaysia |
| City | Kuala Lumpur |
| Period | 12/12/17 → 15/12/17 |
| Internet address |
Keywords
- CUDA
- GPGPU
- LBP-TOP
- micro-expression detection
- parallel computing