基于HOG和SURF特征融合的多目标分类方法

Yun-Jiun Wang, Xiaoming Li
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引用次数: 0

摘要

为了克服HOG+SIFT在光照变化大的情况下无法提取目标的稳定特征和目标识别率低的问题,本文提出了一种基于HOG和SURF特征融合的多目标分类方法。首先,分别利用方向梯度直方图(HOG)和加速鲁棒特征(SURF)提取图像特征;其次,采用聚类方法(K-means)对两个特征进行融合,最后利用支持向量机(SVM)对融合后的特征进行分类,并在光照变化的KTH数据集上测试算法的有效性。实验结果表明,基于HOG+SIFT特征融合的分类方法具有较好的鲁棒性和实时性。同时,针对实际应用中图像退化的两个主要因素(噪声和模糊),对所提出的算法进行了测试和分析,得出了算法对噪声敏感的局限性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-target classification method based on the fusion of HOG and SURF features
In order to overcome the problem that HOG+SIFT can not extract the stable features of targets under large illumination changes and the target recognition rate is low, this paper proposes a multi-target classification method based on the fusion of HOG and SURF features. Firstly, the image features are extracted by using the directional gradient histogram (HOG) and the accelerated robust feature (SURF) respectively. Secondly, the two features are fused by the clustering method (K-means), Finally, the support vector machine (SVM) is used to classify the fused features, and the effectiveness of the algorithm is tested on KTH data sets with illumination changes. Experimental results show that the classification method based on HOG+SIFT feature fusion has better robustness and real-time performance. At the same time, aiming at the two main factors (noise and blur) of image degradation in practical applications, the proposed algorithm is tested and analyzed, and the limitations of the algorithm sensitive to noise are obtained.
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