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Josef Sivic

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#artificial intelligence Preprint Oct 2026

DepthWorld: 3D World Model for Robot Manipulation

World models offer a data-driven alternative to traditional simulators for robotics, with applications spanning policy evaluation, improvement, and planning. All of these uses depend on faithful 3D geometry, yet current video-based world models are trained on RGB alone and produce rollouts that look correct frame-by-fr...

Jai Bardhan, Josef Sivic, Vladimír Petrík · 0 citations
Preprint Oct 2026

Memory-Guided B-Roll Generation from User Video Collections

We introduce an approach for collection-grounded B-roll sequence generation. Given a user's video collection, a directive given in natural language, and a target duration, the goal is to produce a multi-shot sequence that complements the user's primary footage (A-roll) while preserving the collection's characters, sett...

Cusuh Ham, Fabian Caba Heilbron, Josef Sivic et al. · 0 citations

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