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Computer Science, Computer Vision and Pattern Recognition

Hierarchical Text-Conditional Image Generation with CLIP Latents

Hierarchical Text-Conditional Image Generation with CLIP Latents

Text-to-image generation has evolved significantly in recent years, with various models emerging to create images from text inputs. These models have shown promising results in generating high-quality images that can be used in various applications. However, evaluating the quality of these generated images remains a challenge due to the subjective nature of human preferences. To address this issue, researchers have proposed training specific scoring models based on large-scale human feedback datasets. In this article, we will delve into the current state of text-to-image generation and evaluation, exploring the different approaches, models, and metrics used to assess their performance.

Approaches to Text-to-Image Generation

Several approaches have been proposed for text-to-image generation, including Generative Adversarial Networks (GANs), Variational Autoencoders (VAEs), flow-based models, Autoregressive Models (ARMs), and diffusion models. Each of these approaches has its strengths and weaknesses, and the choice of approach depends on the specific application and desired outcome.

Models for Text-to-Image Generation

Some of the popular models used for text-to-image generation include GANs, VAEs, flow-based models, ARMs, and diffusion models. These models have been shown to produce high-quality images that are comparable to those generated by humans. However, evaluating their performance remains a challenge due to the subjective nature of human preferences.

Metrics for Evaluating Text-to-Image Generation

Traditional evaluation metrics such as Inception Score (IS), Fréchet Inception Distance (FID), and CLIP score have been used to evaluate text-to-image generation models. However, these metrics have been shown to be insufficient in capturing the full range of human preferences. To address this issue, researchers have proposed specifically training human preference scoring models based on large-scale human feedback datasets.

Ensemble Baseline Score

To compare the performance of different text-to-image generation models, an ensemble baseline score has been proposed. This score combines the performance of several baseline models, including ImageReward, PickScore, and HPS v2. The ensemble baseline score is intended to provide a more competitive benchmark for evaluating the performance of different text-to-image generation models.

Conclusion

Text-to-image generation has emerged as a promising area of research in recent years. However, evaluating the quality of generated images remains a challenge due to the subjective nature of human preferences. To address this issue, researchers have proposed training specific scoring models based on large-scale human feedback datasets. By leveraging these scores, we can develop more accurate and reliable methods for text-to-image generation and evaluation.