← Search

Shengqu Cai

12 accepted papers

2026

BulletTime: Decoupled Control of Time and Camera Pose for Video Generation

CVPR 2026

Emerging video diffusion models achieve high visual fidelity but fundamentally couple scene dynamics with camera motion, limiting their ability to provide precise spatial and temporal control. We introduce a 4D-controllable video diffusion framework that explicitly decouples scene dynamics from came

Cited by 0SourceScholar
2026

Captain Cinema: Towards Short Movie Generation

ICLR 2026poster

We present **Captain Cinema**, a generation framework for short movie generation. Given a detailed textual description of a movie storyline, our approach firstly generates a sequence of keyframes that outline the entire narrative, which ensures long-range coherence in both the storyline and visual a…

Cited by 0SourceScholar
2026

Mixture of Contexts for Long Video Generation

ICLR 2026poster

Long video generation is fundamentally a long context memory problem: models must retain and retrieve salient events across a long range without collapsing or drifting. However, scaling diffusion transformers to generate long-context videos is fundamentally limited by the quadratic cost of self-atte…

Cited by 0SourceScholar
2026

Mode Seeking meets Mean Seeking for Long Video Generation

ICML 2026poster

Scaling video generation from seconds to minutes faces a critical bottleneck: while short-video data is abundant and high-fidelity, coherent long-form data is scarce and limited to narrow domains. While multi-resolution image training works because higher resolution is largely an interpolation of th…

Cited by 7SourceScholar
2025

CL-Splats: Continual Learning of Gaussian Splatting with Local Optimization

ICCV 2025poster

In dynamic 3D environments, accurately updating scene representations over time is crucial for applications in robotics, mixed reality, and embodied AI. As scenes evolve, efficient methods to incorporate changes are needed to maintain up-to-date, high-quality reconstructions without the computationa…

Cited by 0SourcePDFScholar
2025

Diffusion Self-Distillation for Zero-Shot Customized Image Generation

CVPR 2025poster

Text-to-image diffusion models produce impressive results but are frustrating tools for artists who desire fine-grained control. For example, a common use case is to create images of a specific instance in novel contexts, i.e., "identity-preserving generation". This setting, along with many other ta…

Cited by 11SourcePDFScholar
2025

Frame Context Packing and Drift Prevention in Next-Frame-Prediction Video Diffusion Models

NeurIPS 2025spotlight

We present a neural network structure, FramePack, to train next-frame (or next-frame-section) prediction models for video generation. FramePack compresses input frame contexts with frame-wise importance so that more frames can be encoded within a fixed context length, with more important frames havi…

Cited by 0SourceScholar
2025

X-Dyna: Expressive Dynamic Human Image Animation

CVPR 2025highlight

We introduce X-Dyna, a novel zero-shot, diffusion-based pipeline for animating a single human image using facial expressions and body movements derived from a driving video, that generates realistic, context-aware dynamics for both the subject and the surrounding environment. Building on prior appro…

2024

Collaborative Video Diffusion: Consistent Multi-video Generation with Camera Control

NeurIPS 2024poster

Research on video generation has recently made tremendous progress, enabling high-quality videos to be generated from text prompts or images. Adding control to the video generation process is an important goal moving forward and recent approaches that condition video generation models on camera traj…

Cited by 24SourcePDFScholar
2024

Generative Rendering: Controllable 4D-Guided Video Generation with 2D Diffusion Models

CVPR 2024poster

Traditional 3D content creation tools empower users to bring their imagination to life by giving them direct control over a scene's geometry appearance motion and camera path. Creating computer-generated videos however is a tedious manual process which can be automated by emerging text-to-video diff…

Cited by 15SourcePDFScholar
2023

DiffDreamer: Towards Consistent Unsupervised Single-view Scene Extrapolation with Conditional Diffusion Models

ICCV 2023poster

Scene extrapolation---the idea of generating novel views by flying into a given image---is a promising, yet challenging task. For each predicted frame, a joint inpainting and 3D refinement problem has to be solved, which is ill posed and includes a high level of ambiguity. Moreover, training data fo…

Cited by 38PDFcodeScholar
2022

Pix2NeRF: Unsupervised Conditional p-GAN for Single Image to Neural Radiance Fields Translation

CVPR 2022poster

We propose a pipeline to generate Neural Radiance Fields (NeRF) of an object or a scene of a specific class, conditioned on a single input image. This is a challenging task, as training NeRF requires multiple views of the same scene, coupled with corresponding poses, which are hard to obtain. Our me…

Cited by 105PDFcodeScholar