Not Every Image is Worth a Thousand Words: Quantifying Originality in Stable Diffusion

• URL: http://arxiv.org/abs/2408.08184v1
• Date: Thu, 15 Aug 2024 14:42:02 GMT
• Title: Not Every Image is Worth a Thousand Words: Quantifying Originality in Stable Diffusion
• Authors: Adi Haviv, Shahar Sarfaty, Uri Hacohen, Niva Elkin-Koren, Roi Livni, Amit H Bermano,
• Abstract summary: This work addresses the challenge of quantifying originality in text-to-image (T2I) generative diffusion models. We propose a method that leverages textual inversion to measure the originality of an image based on the number of tokens required for its reconstruction by the model.
• Score: 21.252145402613472
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This work addresses the challenge of quantifying originality in text-to-image (T2I) generative diffusion models, with a focus on copyright originality. We begin by evaluating T2I models' ability to innovate and generalize through controlled experiments, revealing that stable diffusion models can effectively recreate unseen elements with sufficiently diverse training data. Then, our key insight is that concepts and combinations of image elements the model is familiar with, and saw more during training, are more concisly represented in the model's latent space. We hence propose a method that leverages textual inversion to measure the originality of an image based on the number of tokens required for its reconstruction by the model. Our approach is inspired by legal definitions of originality and aims to assess whether a model can produce original content without relying on specific prompts or having the training data of the model. We demonstrate our method using both a pre-trained stable diffusion model and a synthetic dataset, showing a correlation between the number of tokens and image originality. This work contributes to the understanding of originality in generative models and has implications for copyright infringement cases.

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