I4VGen: Image as Free Stepping Stone for Text-to-Video Generation

• URL: http://arxiv.org/abs/2406.02230v2
• Date: Thu, 03 Oct 2024 06:36:14 GMT
• Title: I4VGen: Image as Free Stepping Stone for Text-to-Video Generation
• Authors: Xiefan Guo, Jinlin Liu, Miaomiao Cui, Liefeng Bo, Di Huang,
• Abstract summary: We present I4VGen, a novel video diffusion inference pipeline to enhance pre-trained text-to-video diffusion models. I4VGen consists of two stages: anchor image synthesis and anchor image-augmented text-to-video synthesis. Experiments show that the proposed method produces videos with higher visual realism and textual fidelity datasets.
• Score: 28.910648256877113
• License:
• Abstract: Text-to-video generation has trailed behind text-to-image generation in terms of quality and diversity, primarily due to the inherent complexities of spatio-temporal modeling and the limited availability of video-text datasets. Recent text-to-video diffusion models employ the image as an intermediate step, significantly enhancing overall performance but incurring high training costs. In this paper, we present I4VGen, a novel video diffusion inference pipeline to leverage advanced image techniques to enhance pre-trained text-to-video diffusion models, which requires no additional training. Instead of the vanilla text-to-video inference pipeline, I4VGen consists of two stages: anchor image synthesis and anchor image-augmented text-to-video synthesis. Correspondingly, a simple yet effective generation-selection strategy is employed to achieve visually-realistic and semantically-faithful anchor image, and an innovative noise-invariant video score distillation sampling (NI-VSDS) is developed to animate the image to a dynamic video by distilling motion knowledge from video diffusion models, followed by a video regeneration process to refine the video. Extensive experiments show that the proposed method produces videos with higher visual realism and textual fidelity. Furthermore, I4VGen also supports being seamlessly integrated into existing image-to-video diffusion models, thereby improving overall video quality.

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