Title :
Accelerating CDVS extraction on mobile platform
Author :
Shen Zhang;Ronggang Wang;Qiusi Wang;Wenmin Wang
Author_Institution :
School of Electronic and Computer Engineering, Peking University Shenzhen Graduate School
Abstract :
The extraction of MPEG-7 Compact Descriptors for Visual Search (CDVS) on most popular mobile devices is slow, which is attributed to the complexity of the algorithm and the limited computing power of the mobile platform. A feasible and straightforward way to accelerate the extraction is to excavate the potential computing power of modern mobile microprocessor. In this paper, we implement a NEON SIMD based data level parallelism and Pthread based multi-thread parallelism scheme to accelerate the CDVS extracting process on a multi-core ARM processor. Experimental results show a speed-up of 3.5x on Gaussian convolution, and 2.3x on the whole extracting process with the proposed method.
Keywords :
"Feature extraction","Convolution","Neon","Acceleration","Mobile communication","Parallel processing","Transform coding"
Conference_Titel :
Image Processing (ICIP), 2015 IEEE International Conference on
DOI :
10.1109/ICIP.2015.7351523
