Search papers, labs, and topics across Lattice.
This paper introduces 3D aesthetic portrait planning, a novel task that aims to generate optimal human pose, camera configuration, lighting, and exposure settings within a given 3D scene. The approach uses a Photographic Scene Graph to represent scene affordances, subject-scene relationships, and lighting structures. Aesthetic-guided comparative planning is then performed using this graph and viewfinder observations to generate visually appealing and physically plausible portraits.
Forget post-processing – this work lets you computationally plan the perfect portrait *before* you even press the shutter, coordinating pose, camera, lighting, and exposure in a 3D scene.
Portrait photography is largely decided before the shutter opens: the subject's pose, the camera configuration, and the lighting devices must be coordinated within the surrounding 3D scene. In contrast, most existing computational methods focus on post-production in 2D image space, such as retouching, relighting, or editing images that already exist; pre-capture photographic planning remains largely unexplored. We introduce 3D aesthetic portrait planning, the task of generating human pose, camera, lighting, and exposure plans that produce visually compelling portraits while satisfying geometric and photometric feasibility in a 3D scene. Our approach builds a Photographic Scene Graph that represents scene affordances, subject-scene relations, and portrait-relevant lighting structure. Built on this representation, we perform aesthetic-guided comparative planning over previous attempts and current viewfinder observations. Experiments across diverse indoor and outdoor scenes show that our method produces portraits preferred by human raters and MLLM evaluators over competitive baselines, while maintaining high physical plausibility. Together, our results suggest a path from post-capture correction toward pre-capture computational portrait planning. Project repository: https://github.com/songrise/Before-the-Shutter