Accelerated Wide Baseline Matching using OpenCL

Jian Cao, Jie Liang, Xiao-fang Xie, Xun-qiang Hu
Department of Ordnance Science and Technology, Naval Aeronautical and Astronautical University, Yantai, China
3rd International Conference on Computer and Electrical Engineering (IPCSIT), vol. 53, 2012

   title={Accelerated Wide Baseline Matching using OpenCL},

   author={CAO, Jian and LIANG, Jie and XIE, Xiao-fang and HU, Xun-qiang},



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Wide baseline matching is the state of the art for object recognition and image registration problems in computer vision. Robust feature descriptors can give vast improvements in the quality and speed of subsequent steps, but intensive computation is still required. With the release of general purpose parallel computing interfaces, opportunities for increases in performance arise. In this paper we present an implementation of Speeded-Up Robust Feature (SURF) extractor, based on the OpenCL system of GPU programming developed by NVIDIA. For an 800×640 pixel image, the GPU-based method executes nearly 5 times faster than a comparable CPU-based method, with no significant loss of accuracy.
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