arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.16583eess.IV
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具有颜色感知损失和引导重着色的泛锐化

Pan-Sharpening with Color-Aware Perceptual Loss and Guided Re-Colorization

Juan Luis Gonzalez Bello, Soomin Seo, Munchurl Kim

摘要:

我们提出了一种新的颜色感知(CAP)损失学习泛锐化任务。我们的CAP损失旨在专注于预训练VGG网络的深度特征,这些特征对空间细节更敏感,忽略颜色信息,以允许网络从PAN图像中提取结构信息,同时保留较低分辨率MS图像的颜色。此外,我们提出了“引导重新着色”,它生成一个泛锐化图像与真实的颜色从MS输入“挑选”最接近的MS像素颜色为每个泛锐化像素,作为一个人类操作员将在手动着色。这样的重新着色(RC)图像与全色锐化(PS)网络输出完全对齐,并且可以在训练期间用作自监督信号,或者在测试期间增强PS图像中的颜色。我们提出了几个实验,在这些实验中,使用CAP损失训练的网络生成了看起来自然的泛锐化图像,伪影较少,并且在ERGAS,SCC和QNR指标方面优于WorldView3数据集的最新技术。

英文摘要:

We present a novel color-aware perceptual (CAP) loss for learning the task of pan-sharpening. Our CAP loss is designed to focus on the deep features of a pre-trained VGG network that are more sensitive to spatial details and ignore color information to allow the network to extract the structural information from the PAN image while keeping the color from the lower resolution MS image. Additionally, we propose "guided re-colorization", which generates a pan-sharpened image with real colors from the MS input by "picking" the closest MS pixel color for each pan-sharpened pixel, as a human operator would do in manual colorization. Such a re-colorized (RC) image is completely aligned with the pan-sharpened (PS) network output and can be used as a self-supervision signal during training, or to enhance the colors in the PS image during test. We present several experiments where our network trained with our CAP loss generates naturally looking pan-sharpened images with fewer artifacts and outperforms the state-of-the-arts on the WorldView3 dataset in terms of ERGAS, SCC, and QNR metrics.

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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