Pixel-to-4D: Camera-Controlled Image-to-Video Generation with Dynamic 3D Gaussians

• URL: http://arxiv.org/abs/2601.00678v1
• Date: Fri, 02 Jan 2026 13:04:47 GMT
• Title: Pixel-to-4D: Camera-Controlled Image-to-Video Generation with Dynamic 3D Gaussians
• Authors: Melonie de Almeida, Daniela Ivanova, Tong Shi, John H. Williamson, Paul Henderson,
• Abstract summary: Humans excel at forecasting the future dynamics of a scene given just a single image.<n>Video generation models that can mimic this ability are an essential component for intelligent systems.<n>Recent approaches have improved temporal coherence and 3D consistency in single-image-conditioned video generation.
• Score: 7.051077403685518
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Humans excel at forecasting the future dynamics of a scene given just a single image. Video generation models that can mimic this ability are an essential component for intelligent systems. Recent approaches have improved temporal coherence and 3D consistency in single-image-conditioned video generation. However, these methods often lack robust user controllability, such as modifying the camera path, limiting their applicability in real-world applications. Most existing camera-controlled image-to-video models struggle with accurately modeling camera motion, maintaining temporal consistency, and preserving geometric integrity. Leveraging explicit intermediate 3D representations offers a promising solution by enabling coherent video generation aligned with a given camera trajectory. Although these methods often use 3D point clouds to render scenes and introduce object motion in a later stage, this two-step process still falls short in achieving full temporal consistency, despite allowing precise control over camera movement. We propose a novel framework that constructs a 3D Gaussian scene representation and samples plausible object motion, given a single image in a single forward pass. This enables fast, camera-guided video generation without the need for iterative denoising to inject object motion into render frames. Extensive experiments on the KITTI, Waymo, RealEstate10K and DL3DV-10K datasets demonstrate that our method achieves state-of-the-art video quality and inference efficiency. The project page is available at https://melonienimasha.github.io/Pixel-to-4D-Website.

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