arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1904.03326cs.CV
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基于未知视场稀疏图像集的360全景合成

360 Panorama Synthesis from a Sparse Set of Images with Unknown Field of View

Inha University(仁荷大学)

Julius Surya Sumantri, In Kyu Park

摘要:

360图像代表在所有可能的观看方向上捕获的场景,并使观看者能够在场景周围自由导航,从而提供沉浸式体验。相反,常规图像表示具有小的或有限的视场(FOV)的单个观看方向上的场景。因此,只有某些部分的场景被观察到,并有价值的信息,周围的丢失。在本文中,提出了一种基于学习的方法,该方法从稀疏的常规图像集(通常为4幅图像)重建360 x 180的场景。所提出的方法首先估计输入图像相对于全景的FOV。估计的FOV然后被用作用于合成高分辨率360全景输出的先验。所提出的方法克服了基于学习的方法在合成高分辨率图像(高达512 $\times$ 1024)的困难。实验结果表明,该方法产生的360全景具有合理的质量。结果还表明,所提出的方法优于替代方法,可以推广到非全景场景和智能手机摄像头捕获的图像。

英文摘要:

360 images represent scenes captured in all possible viewing directions and enable viewers to navigate freely around the scene thereby providing an immersive experience. Conversely, conventional images represent scenes in a single viewing direction with a small or limited field of view (FOV). As a result, only certain parts of the scenes are observed, and valuable information about the surroundings is lost. In this paper, a learning-based approach that reconstructs the scene in 360 x 180 from a sparse set of conventional images (typically 4 images) is proposed. The proposed approach first estimates the FOV of input images relative to the panorama. The estimated FOV is then used as the prior for synthesizing a high-resolution 360 panoramic output. The proposed method overcomes the difficulty of learning-based approach in synthesizing high resolution images (up to 512$\times$1024). Experimental results demonstrate that the proposed method produces 360 panorama with reasonable quality. Results also show that the proposed method outperforms the alternative method and can be generalized for non-panoramic scenes and images captured by a smartphone camera.

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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