SierpinskiCam: Camera-Controlled Video Retaking with Sierpinski Triangle Pattern Cues

• URL: http://arxiv.org/abs/2606.17310v1
• Date: Mon, 15 Jun 2026 21:32:01 GMT
• Title: SierpinskiCam: Camera-Controlled Video Retaking with Sierpinski Triangle Pattern Cues
• Abstract summary: Video retaking is a compelling but difficult problem in content creation and visual effects.<n>We propose SierpinskiCam, which augmenting geometry-based guidance with Sierpinski dome texture cues.<n>SierpinskiCam achieves significant gains in camera controllability, geometric consistency, and video quality across diverse and challenging retaking scenarios.
• Score: 27.421239786446645
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Generating novel renderings of a scene along user-defined camera trajectories from a single monocular video, dubbed video retaking, is a compelling but difficult problem in content creation and visual effects. Existing geometry-guided approaches reconstruct a 4D representation from the source video and render it along the target trajectory to condition video diffusion models. However, this guidance degrades as the target camera departs from the source trajectory, leaving newly revealed regions sparse or entirely missing. We propose SierpinskiCam, which addresses this limitation by augmenting geometry-based guidance with Sierpinski dome texture cues that contains rich trackable features even under large viewpoint changes. We further introduce a reference video conditioning mechanism that appends source-video tokens to the target-token sequence and separates the two streams with negative RoPE indices, enabling appearance grounding without architectural modification or per-video adaptation. Extensive experiments show that SierpinskiCam achieves significant gains in camera controllability, geometric consistency, and video quality across diverse and challenging retaking scenarios. Project page: https://hyelinnam.github.io/SierpinskiCam/.

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