There are large amount of valuable video archives in Video Home System (VHS) format. However, due to the analog nature, their quality is often poor. Compared to High-definition television (HDTV), VHS video not only has a dull color appearance but also has a lower resolution and often appears blurry. In this paper, we focus on the problem of translating VHS video to HDTV video and have developed a solution based on a novel unsupervised multi-task adversarial learning model. Inspired by the success of generative adversarial network (GAN) and CycleGAN, we employ cycle consistency loss, adversarial loss and perceptual loss together to learn a translation model. An important innovation of our work is the incorporation of super-resolution model and color transfer model that can solve unsupervised multi-task problem. To our knowledge, this is the first work that dedicated to the study of the relation between VHS and HDTV and the first computational solution to translate VHS to HDTV. We present experimental results to demonstrate the effectiveness of our solution qualitatively and quantitatively.
翻译:然而,由于模拟性质,其质量往往很差。与高清晰度电视(HDTV)相比,VHS视频不仅色色色外观乏味,而且分辨率也较低,而且往往显得模糊不清。在本文中,我们侧重于将VHS视频转换为HDTV视频的问题,并基于一种新型的、不受监督的多任务对抗性学习模式制定了解决方案。在基因对抗性网络(GAN)和CyopleGAN的成功激励下,我们使用周期一致性损失、对抗性损失和感知性损失一起学习翻译模型。我们工作的一个重要创新是纳入超级分辨率模型和颜色转移模型,这可以解决不受监督的多任务问题。据我们所知,这是研究VHS和HDTV之间的关系的第一个专门工作,也是将VHS转化为HDTV的第一个计算解决方案。我们介绍了实验结果,以展示我们解决方案的质量和数量上的有效性。