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arXiv 1809.00720cs.CV
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从轨道估计汽车姿态的微小差异

Estimating Small Differences in Car-Pose from Orbits

QUVA Lab(QUVA实验室);University of Amsterdam(阿姆斯特丹大学)

Berkay Kicanaoglu, Ran Tao, Arnold W. M. Smeulders

摘要:

区分附近的姿势和物体的对称性是具有挑战性的。在本文中,我们提出了一个统一的,群论的方法来解决这两个问题。与直接预测绝对姿态的现有工作不同,我们的方法测量对象相对于另一个姿态的姿态,即,pose的区别。所提出的方法从物体关于围绕z轴旋转的SO(3)子群的单个视图生成物体的完整轨道,并使用新的轨道度量将物体的轨道与另一轨道进行比较以估计姿态差。在潜空间中生成的轨道记录了原始观测空间中的所有位姿差异,因此,该方法能够发现位姿的细微差异。我们证明了所提出的方法在汽车上的有效性,其中识别细微的姿势差异是至关重要的。

英文摘要:

Distinction among nearby poses and among symmetries of an object is challenging. In this paper, we propose a unified, group-theoretic approach to tackle both. Different from existing works which directly predict absolute pose, our method measures the pose of an object relative to another pose, i.e., the pose difference. The proposed method generates the complete orbit of an object from a single view of the object with respect to the subgroup of SO(3) of rotations around the z-axis, and compares the orbit of the object with another orbit using a novel orbit metric to estimate the pose difference. The generated orbit in the latent space records all the differences in pose in the original observational space, and as a result, the method is capable of finding subtle differences in pose. We demonstrate the effectiveness of the proposed method on cars, where identifying the subtle pose differences is vital.

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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