Diffusion Models, Image Super-Resolution, and Everything: A Survey.

Diffusion models (DMs) have disrupted the image super-resolution (SR) field and further closed the gap between image quality and human perceptual preferences. They are easy to train and can produce very high-quality samples that exceed the realism of those produced by previous generative methods. Despite their promising results, they also come with new challenges that need further research: high computational demands, comparability, lack of explainability, color shifts, and more.

Hitchhiker's Guide to Super-Resolution: Introduction and Recent Advances.

With the advent of Deep Learning (DL), Super-Resolution (SR) has also become a thriving research area. However, despite promising results, the field still faces challenges that require further research, e.g.

Adversarial text-to-image synthesis: A review.

With the advent of generative adversarial networks, synthesizing images from text descriptions has recently become an active research area. It is a flexible and intuitive way for conditional image generation with significant progress in the last years regarding visual realism, diversity, and semantic alignment. However, the field still faces several challenges that require further research efforts such as enabling the generation of high-resolution images with multiple objects, and developing suitable and reliable evaluation metrics that correlate with human judgement.

Optimization of a multibeam-pumped optical parametric amplifier.

The results of numerical simulation of the output amplifier cascade of a powerful laser system based on the parametric amplification of femtosecond pulses in an LiBO crystal with multiple beams pumping are presented. The improved technique for choosing pump beam angles with minimal parasitic amplification is presented. Differences of carrier-resolving versus envelope simulations are discussed.