Do DALL-E and Flamingo Understand Each Other?

• URL: http://arxiv.org/abs/2212.12249v2
• Date: Fri, 18 Aug 2023 18:44:51 GMT
• Title: Do DALL-E and Flamingo Understand Each Other?
• Authors: Hang Li, Jindong Gu, Rajat Koner, Sahand Sharifzadeh, Volker Tresp
• Abstract summary: We propose a reconstruction task where Flamingo generates a description for a given image and DALL-E uses this description as input to synthesize a new image. We find that an optimal description of an image is one that gives rise to a generated image similar to the original one. We propose a unified framework to finetune the text-to-image and image-to-text models.
• Score: 36.4732744974398
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The field of multimodal research focusing on the comprehension and creation of both images and text has witnessed significant strides. This progress is exemplified by the emergence of sophisticated models dedicated to image captioning at scale, such as the notable Flamingo model and text-to-image generative models, with DALL-E serving as a prominent example. An interesting question worth exploring in this domain is whether Flamingo and DALL-E understand each other. To study this question, we propose a reconstruction task where Flamingo generates a description for a given image and DALL-E uses this description as input to synthesize a new image. We argue that these models understand each other if the generated image is similar to the given image. Specifically, we study the relationship between the quality of the image reconstruction and that of the text generation. We find that an optimal description of an image is one that gives rise to a generated image similar to the original one. The finding motivates us to propose a unified framework to finetune the text-to-image and image-to-text models. Concretely, the reconstruction part forms a regularization loss to guide the tuning of the models. Extensive experiments on multiple datasets with different image captioning and image generation models validate our findings and demonstrate the effectiveness of our proposed unified framework. As DALL-E and Flamingo are not publicly available, we use Stable Diffusion and BLIP in the remaining work. Project website: https://dalleflamingo.github.io.

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