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arXiv 2602.04584cs.CV
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SalFormer360:一种用于360度视频的基于Transformer的显著性估计模型

SalFormer360: a transformer-based saliency estimation model for 360-degree videos

Mahmoud Z. A. Wahba, Francesco Barbato, Sara Baldoni, Federica Battisti

AI总结:

针对360度视频显著性估计问题,提出基于Transformer架构的SalFormer360模型,结合SegFormer编码器与自定义解码器,并纳入观看中心偏差,实验表明该模型在多个基准数据集上优于现有方法,显著提升了相关性能。

摘要:

近年来,显著性估计因其在广泛应用中的重要性而受到越来越多的关注。在360度视频的背景下,它对视口预测和沉浸式内容优化等任务特别有价值。本文提出了SalFormer360,这是一种基于Transformer架构的新型360度视频显著性估计模型。我们的方法基于现有编码器架构SegFormer和自定义解码器的组合。SegFormer模型最初是为2D分割任务开发的,已进行微调以适应360度内容。为进一步提高模型预测准确性,我们纳入了观看中心偏差以反映360度环境中的用户注意力。在三个最大的显著性估计基准数据集上的大量实验表明,SalFormer360优于现有最先进的方法。在Pearson相关系数方面,我们的模型在Sport360上比以前的最先进方法性能高8.4%,在PVS-HM上高2.5%,在VR-EyeTracking上高18.6%。

英文摘要:

Saliency estimation has received growing attention in recent years due to its importance in a wide range of applications. In the context of 360-degree video, it has been particularly valuable for tasks such as viewport prediction and immersive content optimization. In this paper, we propose SalFormer360, a novel saliency estimation model for 360-degree videos built on a transformer-based architecture. Our approach is based on the combination of an existing encoder architecture, SegFormer, and a custom decoder. The SegFormer model was originally developed for 2D segmentation tasks, and it has been fine-tuned to adapt it to 360-degree content. To further enhance prediction accuracy in our model, we incorporated Viewing Center Bias to reflect user attention in 360-degree environments. Extensive experiments on the three largest benchmark datasets for saliency estimation demonstrate that SalFormer360 outperforms existing state-of-the-art methods. In terms of Pearson Correlation Coefficient, our model achieves 8.4% higher performance on Sport360, 2.5% on PVS-HM, and 18.6% on VR-EyeTracking compared to previous state-of-the-art.

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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