Learning Long-term Motion Embeddings for Efficient Kinematics Generation
Understanding and predicting motion is a fundamental component of visual intelligence. Although modern video models exhibit strong comprehension of scene dynamics, exploring multiple possible futures through full video synthesis remains prohibitively inefficient. We model scene dynamics orders of magnitude more efficiently by directly operating on a long-term motion embedding that is learned from large-scale trajectories obtained from tracker models. This enables efficient generation of long, realistic motions that fulfill goals specified via text prompts or spatial pokes. To achieve this, we first learn a highly compressed motion embedding with a temporal compression factor of 64x. In this space, we train a conditional flow-matching model to generate motion latents conditioned on task descriptions. The resulting motion distributions outperform those of both state-of-the-art video models and specialized task-specific approaches.
69de336d9d30fe1923da4a8a
Nick Stracke
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Kolja Bauer
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Stefan Andreas Baumann
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Miguel Angel Bautista
69de336d9d30fe1923da4a8e
Josh Susskind
69de336d9d30fe1923da4a8f
Björn Ommer
Learning Long-term Motion Embeddings for Efficient Kinematics Generation
Understanding and predicting motion is a fundamental component of visual intelligence. Although modern video models exhibit strong comprehension of scene dynamics, exploring multiple possible futures through full video synthesis remains prohibitively inefficient. We model scene dynamics orders of magnitude more efficiently by directly operating on a long-term motion embedding that is learned from large-scale trajectories obtained from tracker models. This enables efficient generation of long, realistic motions that fulfill goals specified via text prompts or spatial pokes. To achieve this, we first learn a highly compressed motion embedding with a temporal compression factor of 64x. In this space, we train a conditional flow-matching model to generate motion latents conditioned on task descriptions. The resulting motion distributions outperform those of both state-of-the-art video models and specialized task-specific approaches.
Efficient motion generation is achieved through compressed motion embeddings and conditional flow-matching models that produce realistic long-term motions from text prompts or spatial inputs.
motion embedding temporal compression flow-matching model conditional generation trajectory modeling video synthesis