资源论文Attentive Semantic Alignment with Offset-Aware Correlation Kernels

Attentive Semantic Alignment with Offset-Aware Correlation Kernels

2019-10-28 | |  90 |   52 |   0

Abstract. Semantic correspondence is the problem of establishing correspondences across images depicting difffferent instances of the same object or scene class. One of recent approaches to this problem is to estimate parameters of a global transformation model that densely aligns one image to the other. Since an entire correlation map between all feature pairs across images is typically used to predict such a global transformation, noisy features from difffferent backgrounds, clutter, and occlusion distract the predictor from correct estimation of the alignment. This is a challenging issue, in particular, in the problem of semantic correspondence where a large degree of image variations is often involved. In this paper, we introduce an attentive semantic alignment method that focuses on reliable correlations, fifiltering out distractors. For effffective attention, we also propose an offffset-aware correlation kernel that learns to capture translation-invariant local transformations in computing correlation values over spatial locations. Experiments demonstrate the effffectiveness of the attentive model and offffset-aware kernel, and the proposed model combining both techniques achieves the state-of-the-art performance

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