arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.00977cs.CVcs.AIcs.GRcs.LG
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PerceptionGAN:通过感知理解从提供的文本构建真实世界的图像

PerceptionGAN: Real-world Image Construction from Provided Text through Perceptual Understanding

Indian Institute of Technology Delhi(印度理工学院德里分校);Singapore University of Technology and Design(新加坡科技设计大学)

Kanish Garg, Ajeet kumar Singh, Dorien Herremans, Brejesh Lall

摘要:

从所提供的描述性文本生成图像是一项相当具有挑战性的任务,因为难以结合感知信息(对象形状、颜色及其交互)以及提供与所提供的文本相关的高相关性。当前的方法首先生成初始低分辨率图像,其通常具有不规则的对象形状、颜色和对象之间的交互。然后,通过对文本进行调节来改善该初始图像。然而,这些方法主要解决在初始生成图像的细化中有效使用文本表示的问题,而正如DM-GAN论文中指出的那样,这个细化过程的成功在很大程度上取决于初始生成图像的质量。因此,我们提出了一种方法来提供良好的初始化图像,将感性的理解,在模块中。我们在第一阶段本身改善了感知信息,这导致最终生成的图像有了显着的改善。在本文中,我们已经将我们的方法应用于新颖的StackGAN架构。然后,我们表明,包括在初始图像的感知信息得到改善,同时在多个阶段的图像分布建模。最后,我们生成了逼真的彩色图像的文字条件。这些图像具有良好的质量以及包含改进的基本感知信息。更重要的是,所提出的方法可以集成到其他国家的最先进的基于文本的图像生成模型的管道,以生成初始的低分辨率图像。我们还致力于通过增强StackGAN架构中生成器对的第三阶段来改进StackGAN中的细化过程。我们的实验分析和国家的最先进的一个大的,但稀疏的数据集MS COCO进一步验证了我们提出的方法的有用性。

英文摘要:

Generating an image from a provided descriptive text is quite a challenging task because of the difficulty in incorporating perceptual information (object shapes, colors, and their interactions) along with providing high relevancy related to the provided text. Current methods first generate an initial low-resolution image, which typically has irregular object shapes, colors, and interaction between objects. This initial image is then improved by conditioning on the text. However, these methods mainly address the problem of using text representation efficiently in the refinement of the initially generated image, while the success of this refinement process depends heavily on the quality of the initially generated image, as pointed out in the DM-GAN paper. Hence, we propose a method to provide good initialized images by incorporating perceptual understanding in the discriminator module. We improve the perceptual information at the first stage itself, which results in significant improvement in the final generated image. In this paper, we have applied our approach to the novel StackGAN architecture. We then show that the perceptual information included in the initial image is improved while modeling image distribution at multiple stages. Finally, we generated realistic multi-colored images conditioned by text. These images have good quality along with containing improved basic perceptual information. More importantly, the proposed method can be integrated into the pipeline of other state-of-the-art text-based-image-generation models to generate initial low-resolution images. We also worked on improving the refinement process in StackGAN by augmenting the third stage of the generator-discriminator pair in the StackGAN architecture. Our experimental analysis and comparison with the state-of-the-art on a large but sparse dataset MS COCO further validate the usefulness of our proposed approach.

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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