HARP: Autoregressive Latent Video Prediction with High-Fidelity Image Generator

• URL: http://arxiv.org/abs/2209.07143v1
• Date: Thu, 15 Sep 2022 08:41:57 GMT
• Title: HARP: Autoregressive Latent Video Prediction with High-Fidelity Image Generator
• Authors: Younggyo Seo, Kimin Lee, Fangchen Liu, Stephen James, Pieter Abbeel
• Abstract summary: We train an autoregressive latent video prediction model capable of predicting high-fidelity future frames. We produce high-resolution (256x256) videos with minimal modification to existing models.
• Score: 90.74663948713615
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Video prediction is an important yet challenging problem; burdened with the tasks of generating future frames and learning environment dynamics. Recently, autoregressive latent video models have proved to be a powerful video prediction tool, by separating the video prediction into two sub-problems: pre-training an image generator model, followed by learning an autoregressive prediction model in the latent space of the image generator. However, successfully generating high-fidelity and high-resolution videos has yet to be seen. In this work, we investigate how to train an autoregressive latent video prediction model capable of predicting high-fidelity future frames with minimal modification to existing models, and produce high-resolution (256x256) videos. Specifically, we scale up prior models by employing a high-fidelity image generator (VQ-GAN) with a causal transformer model, and introduce additional techniques of top-k sampling and data augmentation to further improve video prediction quality. Despite the simplicity, the proposed method achieves competitive performance to state-of-the-art approaches on standard video prediction benchmarks with fewer parameters, and enables high-resolution video prediction on complex and large-scale datasets. Videos are available at https://sites.google.com/view/harp-videos/home.

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