Core Concepts
Proposing TrackDiffusion for fine-grained trajectory-conditioned motion control in video generation.
Abstract
Directory:
Abstract
Introduction
ModelScope Comparison
Related Work
Method Overview
Preliminary: Latent Diffusion Models (LDM)
Tracklet-Conditioned Video Generation
Temporal Instance Enhancer Illustration
Experiments and Results
Ablation Study
Synthetic Data Augmentation
Conclusion
Abstract:
Challenges in video synthesis include nuanced movement among multiple objects.
Proposed TrackDiffusion framework for precise motion control using diffusion models.
Demonstrated utility in training visual perception models.
Introduction:
Existing video synthesis limitations addressed by TrackDiffusion.
Importance of fine-grained motion control for high-quality video generation.
ModelScope Comparison:
Comparison with ModelScope shows improved consistency with input prompts.
Related Work:
Advances in layout-to-image and text-to-video generation discussed.
Method Overview:
Introduction to latent diffusion models and the proposed tracklet-conditioned video generation approach.
Preliminary: Latent Diffusion Models (LDM):
Explanation of autoencoder and diffusion model components in LDM.
Tracklet-Conditioned Video Generation:
Detailed explanation of instance-aware location tokens, temporal instance enhancer, motion extractor, and gated cross-attention components.
Experiments and Results:
Evaluation on YTVIS dataset shows superior quality and trajectory control compared to existing methods.
Ablation Study:
Impact of instance embeddings and temporal enhancer on instance consistency analyzed.
Synthetic Data Augmentation:
Use of generated frames for training object trackers improves tracking accuracy.
Conclusion:
Summary of the proposed TrackDiffusion framework's effectiveness in video generation tasks.
Stats
Generated Frames FVD score: 605 (256x256), 548 (480x320)
TrackAP score improvement over Vanilla: 3.4 points
Quotes
"Despite remarkable achievements in video synthesis, achieving granular control over complex dynamics still presents a significant hurdle."
"Our extensive experiments demonstrate that TrackDiffusion surpasses prior methods in the quality of the generated video data."