计算机科学 ›› 2016, Vol. 43 ›› Issue (Z6): 165-167.doi: 10.11896/j.issn.1002-137X.2016.6A.038
甘威,张素文,雷震,李怡凡
GAN Wei, ZHANG Su-wen, LEI Zhen and LI Yi-fan
摘要： 特征的检测和匹配在计算机视觉应用中是一个重要的组成部分,如图像匹配、物体识别和视频跟踪等。SIFT算法以其尺度不变性和旋转不变性在图像配准领域得到了广泛应用。传统的SIFT算法效率低,因此提出一种在移动智能终端上实现的高效方法。在Android平台利用OpenCL框架实现了移动智能终端的SIFT算法,通过计算任务的重新分配,优化SIFT算法在移动GPU上的并行实现。实验结果表明,移动平台的SIFT算法充分利用了GPU并行计算能力,大大提高了SIFT算法的执行效率,实现了高效的特征检测。
| [1] Lowe D G.Distinctive Image Features from Scale-Invariant Keypoints[J].International Journal of Computer Vision,2004,60(2):91-110 [2] Sinha S N,Frahm J M,Pollefeys M,et al.Feature tracking and matching in video using programmable graphics hardware[J].Machine Vision & Applications,2011,22(1):207-217 [3] Kayombya G R.SIFT feature extraction on a Smartphone GPU using OpenGL ES2.0[D].Massachusetts:Massachusetts Institute of Technology,2011 [4] Rister B,Wang G,Wu M,et al.A fast and efficient sift detector using the mobile GPU[C]∥2013 IEEE International Confe-rence on Acoustics,Speech and Signal Processing (ICASSP).IEEE,2013:2674-2678 [5] Wang Wei-yan,Zhang Yun-quan,Long Guo-ping,et al.CLSIFT:An Optimization Study of the Scale Invariant Feature Transform on GPUs[C]∥IEEE 15th International Conference on High Performance Computing and Communication.2013 [6] Wang G,Rister B,Cavallaro J R.Workload Analysis and Efficient OpenCL-based Implementation of SIFT Algorithm on a Smartphone[C]∥ Global Conference on Signal and Information Processing(GlobalSIP).IEEE,2013:759-762 [7] Wang G.An easy-to use standalone SIFT library easy-to-usestandalone SIFT library written in C/C++[CP/OL].http://sourceforge.net/projects/ezsift [8] 张樱,张云泉,龙国平.基于OpenCL的图像模糊化算法优化研究[J].计算机科学,2012,39(3):260-264 [9] 贾海鹏,张云泉,徐建良.基于OpenCL的图像积分图算法优化研究[J].计算机科学,2013,0(2):1-7 [10] 王瑞,梁华,蔡宣平.基于GPU的SIFT特征提取算法研究[J].现代电子技术,2010,33(15):41-43 |
| No related articles found! |
|
||
首页