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Object Recognition in Images via a Factor Graph Model

机译:通过因子图模型在图像中的对象识别

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Object recognition in images suffered from huge search space and uncertain object profile. Recently, the Bag-of-Words methods are utilized to solve these problems, especially the 2-dimension CRF(Conditional Random Field) model. In this paper we suggest the method based on a general and flexible fact graph model, which can catch the long-range correlation in Bag-of-Words by constructing a network learning framework contrasted from lattice in CRF. Furthermore, we explore a parameter learning algorithm based on the gradient descent and Loopy Sum-Product algorithms for the factor graph model. Experimental results on Graz 02 dataset show that, the recognition performance of our method in precision and recall is better than a state-of-art method and the original CRF model, demonstrating the effectiveness of the proposed method.
机译:图像中的对象识别遭受巨大的搜索空间和不确定对象配置文件。最近,使用袋式方法来解决这些问题,尤其是2维CRF(条件随机场)模型。在本文中,我们提出了一种基于一般和灵活的事实图模型的方法,可以通过构建与CRF中的格子形成对比的网络学习框架来捕获袋子的远程相关性。此外,我们探索基于因子图模型的梯度下降和循环和 - 产品算法的参数学习算法。 GRAZ 02数据集的实验结果表明,我们在精度和召回中的方法的识别性能优于最先进的方法和原始CRF模型,展示了该方法的有效性。

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