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arXiv 1710.04071cs.CV
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基于区域生长和注视预测模型的全景图像显著目标检测

Automatic Salient Object Detection for Panoramic Images Using Region Growing and Fixation Prediction Model

Peking University Shenzhen Graduate School(北京大学深圳研究生院)

Chunbiao Zhu, Kan Huang, Ge Li

摘要:

以往的显著性检测工作主要针对传统图像,但随着VR、AR技术的快速发展,全景图像的出现,显著性检测变得越来越具有挑战性,同时对全景图像中显著性内容的提取也具有重要的研究价值。在本文中,我们提出了一种新的自下而上的全景图像显著目标检测框架。首先,我们采用一种空间密度估计的方法来粗略地提取目标建议区域,与区域生长算法的帮助下。同时,从人类视觉搜索机制的角度,利用眼睛注视模型来预测图像中的视觉吸引力部分。然后,通过最大值归一化将先前的结果组合以获得粗糙显著图。最后,基于测地线距离的细化步骤用于后处理,以获得最终的显著图。为了公平地评估所提出的方法的性能,我们提出了一个高质量的全景图像数据集(SalPan)。广泛的评估表明,我们提出的方法对全景图像的有效性和所提出的方法对其他方法的优越性。

英文摘要:

Almost all previous works on saliency detection have been dedicated to conventional images, however, with the outbreak of panoramic images due to the rapid development of VR or AR technology, it is becoming more challenging, meanwhile valuable for extracting salient contents in panoramic images. In this paper, we propose a novel bottom-up salient object detection framework for panoramic images. First, we employ a spatial density estimation method to roughly extract object proposal regions, with the help of region growing algorithm. Meanwhile, an eye fixation model is utilized to predict visually attractive parts in the image from the perspective of the human visual search mechanism. Then, the previous results are combined by the maxima normalization to get the coarse saliency map. Finally, a refinement step based on geodesic distance is utilized for post-processing to derive the final saliency map. To fairly evaluate the performance of the proposed approach, we propose a high-quality dataset of panoramic images (SalPan). Extensive evaluations demonstrate the effectiveness of our proposed method on panoramic images and the superiority of the proposed method against other methods.

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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