Summary of Long Video Diffusion Generation with Segmented Cross-attention and Content-rich Video Data Curation, by Xin Yan et al.
Long Video Diffusion Generation with Segmented Cross-Attention and Content-Rich Video Data Curation
by Xin Yan, Yuxuan Cai, Qiuyue Wang, Yuan Zhou, Wenhao Huang, Huan Yang
First submitted to arxiv on: 2 Dec 2024
Categories
- Main: Computer Vision and Pattern Recognition (cs.CV)
- Secondary: Artificial Intelligence (cs.AI); Multimedia (cs.MM)
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| Summary difficulty | Written by | Summary |
|---|---|---|
| High | Paper authors | High Difficulty Summary Read the original abstract here |
| Medium | GrooveSquid.com (original content) | Medium Difficulty Summary The paper introduces Presto, a novel video diffusion model that generates 15-second videos with long-range coherence and rich content. The key challenge addressed is maintaining scenario diversity over long durations. To overcome this, the authors propose a Segmented Cross-Attention (SCA) strategy, which splits hidden states into segments along the temporal dimension, allowing each segment to cross-attend to a corresponding sub-caption. This approach requires no additional parameters and can be seamlessly incorporated into current DiT-based architectures. The paper also presents the LongTake-HD dataset, consisting of 261k content-rich videos with scenario coherence, annotated with an overall video caption and five progressive sub-captions. Experimental results show that Presto outperforms existing state-of-the-art video generation methods on the VBench Semantic Score (78.5%) and Dynamic Degree (100%). |
| Low | GrooveSquid.com (original content) | Low Difficulty Summary Presto is a new way to make videos that are 15 seconds long and look really good. The problem is that it’s hard to keep the same scene going for a long time without getting boring or silly. To fix this, the creators came up with a special trick called Segmented Cross-Attention (SCA). This helps the video generator understand what’s happening in different parts of the video and make sure they fit together well. They also made a big dataset of videos to test their idea on. The results show that Presto is really good at making long videos that are fun and interesting. |
Keywords
» Artificial intelligence » Cross attention » Diffusion model
