Beyond Skeletons: Learning Animation Directly from Driving Videos with Same2X Training Strategy

· Source: Computer Vision and Pattern Recognition · Field: Technology & Digital — Artificial Intelligence & Machine Learning, Computer Vision · Depth: Expert, quick

Summary

DirectAnimator is a novel framework for human image animation that generates video from a static reference image guided by a driving video, bypassing traditional pose extraction methods. Unlike existing approaches that rely on error-prone pose estimators, DirectAnimator learns directly from raw driving videos. It employs a "Driving Cue Triplet" comprising pose, face, and location cues to capture motion, expression, and alignment in a stable, semantically rich form. These cues are fused using a "CueFusion DiT block" for reliable control during the denoising process. Furthermore, DirectAnimator introduces a "Same2X training strategy" to align cross-ID features with same-ID data, ensuring dependable learning even when driving and reference identities differ. This approach achieves state-of-the-art visual quality, identity preservation, and robustness to occlusions and complex articulation, all while utilizing fewer computational resources.

Key takeaway

For Machine Learning Engineers developing human image animation systems, DirectAnimator offers a robust alternative to traditional pose-estimation pipelines. You should consider adopting direct learning from raw driving videos, utilizing cue fusion and cross-ID training strategies to enhance animation quality and identity preservation. This approach can significantly improve robustness against occlusions and complex poses while potentially reducing your computational resource requirements for high-fidelity video generation.

Key insights

DirectAnimator learns human image animation directly from raw driving videos, bypassing error-prone pose estimation for superior quality and robustness.

Principles

Method

DirectAnimator uses a Driving Cue Triplet (pose, face, location) fused via a CueFusion DiT block for denoising control. The Same2X training strategy aligns cross-ID features with same-ID data.

In practice

Topics

Best for: Research Scientist, AI Scientist, Computer Vision Engineer, Machine Learning Engineer

Related on AIssential

Open in AIssential →

Editorial summary, takeaway, and curation by AIssential. Original article published by Computer Vision and Pattern Recognition.