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arXiv 1503.01393cs.CVcs.RO
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一种分层的多视点联合目标位姿估计与分类方法

A Hierarchical Approach for Joint Multi-view Object Pose Estimation and Categorization

University of Birmingham(伯明翰大学);Poznan University of Technology(波兹南理工大学)

Mete Ozay, Krzysztof Walas, Ales Leonardis

摘要:

我们提出了一个联合对象姿态估计和分类方法,提取信息的对象构成和类别的对象部分和组成构建在不同层次的对象表示算法,即学习层次的部分(LHOP)。在所提出的方法中,我们首先采用LHOP学习分层零件库,这些零件库代表不同对象类别和视图的实体零件和组合物。然后,我们提取的统计和几何特征的部分实现的图像中的对象,以表示信息的对象的姿态和类别在每个不同的层次结构的层。与传统的方法,考虑特定层的层次结构,以提取信息来执行特定的任务,我们结合在不同的层提取的信息来解决一个联合对象的姿态估计和分类问题,使用分布式优化算法。我们研究了两个基准的2-D多视图图像数据集上提出的生成判别学习方法和算法。所提出的方法和算法优于最先进的分类,回归和特征提取算法。此外,实验结果揭示了对象分类,姿态估计和在层次结构的不同层观察到的部分实现之间的关系。

英文摘要:

We propose a joint object pose estimation and categorization approach which extracts information about object poses and categories from the object parts and compositions constructed at different layers of a hierarchical object representation algorithm, namely Learned Hierarchy of Parts (LHOP). In the proposed approach, we first employ the LHOP to learn hierarchical part libraries which represent entity parts and compositions across different object categories and views. Then, we extract statistical and geometric features from the part realizations of the objects in the images in order to represent the information about object pose and category at each different layer of the hierarchy. Unlike the traditional approaches which consider specific layers of the hierarchies in order to extract information to perform specific tasks, we combine the information extracted at different layers to solve a joint object pose estimation and categorization problem using distributed optimization algorithms. We examine the proposed generative-discriminative learning approach and the algorithms on two benchmark 2-D multi-view image datasets. The proposed approach and the algorithms outperform state-of-the-art classification, regression and feature extraction algorithms. In addition, the experimental results shed light on the relationship between object categorization, pose estimation and the part realizations observed at different layers of the hierarchy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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