activity
20222026
most citedBox2Mask: Weakly Supervised 3D Semantic Instance Segmentation Using Bounding Boxes

4 citations · 10 across the 17 of their papers we have counts for

collaborators

22 papers

cs.CV2026

SuperFlex: Deformable Superquadrics for Point Cloud Decomposition

Gabriel Tavernini, Elisabetta Fedele, Tiago Novello +3

Superquadrics have proven to provide a compact, geometrically meaningful representation for 3D objects. However, existing methods suffer from limited reconstruction accuracy, are r…

cs.RO2026

Hierarchical and Holistic Open-Vocabulary Functional 3D Scene Graphs for Indoor Spaces

Xinggang Hu, Chenyangguang Zhang, Alexandros Delitzas +4

Functional 3D scene graphs offer a versatile and flexible representation for 3D scene understanding and robotic manipulation, defined by object nodes, interactive elements, and fun…

cs.CV2026

FunRec: Reconstructing Functional 3D Scenes from Egocentric Interaction Videos

Alexandros Delitzas, Chenyangguang Zhang, Alexey Gavryushin +8

We present FunRec, a method for reconstructing functional 3D digital twins of indoor scenes directly from egocentric RGB-D interaction videos. Unlike existing methods on articulate…

cs.CV2025

HouseLayout3D: A Benchmark and Training-Free Baseline for 3D Layout Estimation in the Wild

Valentin Bieri, Marie-Julie Rakotosaona, Keisuke Tateno +2

Current 3D layout estimation models are primarily trained on synthetic datasets containing simple single room or single floor environments. As a consequence, they cannot natively h…

cs.CV2025

SpaceControl: Introducing Test-Time Spatial Control to 3D Generative Modeling

Elisabetta Fedele, Francis Engelmann, Ian Huang +3

Generative methods for 3D assets have recently achieved remarkable progress, yet providing intuitive and precise control over the object geometry remains a key challenge. Existing…

cs.CV2025

UnLoc: Leveraging Depth Uncertainties for Floorplan Localization

Matthias Wüest, Francis Engelmann, Ondrej Miksik +2

We propose UnLoc, an efficient data-driven solution for sequential camera localization within floorplans. Floorplan data is readily available, long-term persistent, and robust to c…

cs.CV2025

Video Perception Models for 3D Scene Synthesis

Rui Huang, Guangyao Zhai, Zuria Bauer +5

Traditionally, 3D scene synthesis requires expert knowledge and significant manual effort. Automating this process could greatly benefit fields such as architectural design, roboti…

cs.CV2025

Robust Human Registration with Body Part Segmentation on Noisy Point Clouds

Kai Lascheit, Daniel Barath, Marc Pollefeys +2

Registering human meshes to 3D point clouds is essential for applications such as augmented reality and human-robot interaction but often yields imprecise results due to noise and…

cs.CV2025

SuperDec: 3D Scene Decomposition with Superquadric Primitives

Elisabetta Fedele, Boyang Sun, Leonidas Guibas +2

We present SuperDec, an approach for creating compact 3D scene representations via decomposition into superquadric primitives. While most recent works leverage geometric primitives…

cs.CV2025

Open-Vocabulary Functional 3D Scene Graphs for Real-World Indoor Spaces

Chenyangguang Zhang, Alexandros Delitzas, Fangjinhua Wang +4

We introduce the task of predicting functional 3D scene graphs for real-world indoor environments from posed RGB-D images. Unlike traditional 3D scene graphs that focus on spatial…

cs.CV2024★ 2 cited

ARKit LabelMaker: A New Scale for Indoor 3D Scene Understanding

Guangda Ji, Silvan Weder, Francis Engelmann +2

Neural network performance scales with both model size and data volume, as shown in both language and image processing. This requires scaling-friendly architectures and large datas…

cs.CV2024

Search3D: Hierarchical Open-Vocabulary 3D Segmentation

Ayca Takmaz, Alexandros Delitzas, Robert W. Sumner +3

Open-vocabulary 3D segmentation enables exploration of 3D spaces using free-form text descriptions. Existing methods for open-vocabulary 3D instance segmentation primarily focus on…

cs.CV2024

P2P-Bridge: Diffusion Bridges for 3D Point Cloud Denoising

Mathias Vogel, Keisuke Tateno, Marc Pollefeys +3

In this work, we tackle the task of point cloud denoising through a novel framework that adapts Diffusion Schrödinger bridges to points clouds. Unlike previous approaches that pred…

cs.CV2024

OpenDAS: Open-Vocabulary Domain Adaptation for 2D and 3D Segmentation

Gonca Yilmaz, Songyou Peng, Marc Pollefeys +2

Recently, Vision-Language Models (VLMs) have advanced segmentation techniques by shifting from the traditional segmentation of a closed-set of predefined object classes to open-voc…

cs.RO2024★ 1 cited

Spot-Compose: A Framework for Open-Vocabulary Object Retrieval and Drawer Manipulation in Point Clouds

Oliver Lemke, Zuria Bauer, René Zurbrügg +3

In recent years, modern techniques in deep learning and large-scale datasets have led to impressive progress in 3D instance segmentation, grasp pose estimation, and robotics. This…

cs.CV2024

OpenNeRF: Open Set 3D Neural Scene Segmentation with Pixel-Wise Features and Rendered Novel Views

Francis Engelmann, Fabian Manhardt, Michael Niemeyer +3

Large visual-language models (VLMs), like CLIP, enable open-set image segmentation to segment arbitrary concepts from an image in a zero-shot manner. This goes beyond the tradition…

cs.CV2024

SceneGraphLoc: Cross-Modal Coarse Visual Localization on 3D Scene Graphs

Yang Miao, Francis Engelmann, Olga Vysotska +3

We introduce a novel problem, i.e., the localization of an input image within a multi-modal reference map represented by a database of 3D scene graphs. These graphs comprise multip…

cs.CV2024★ 1 cited

OpenSUN3D: 1st Workshop Challenge on Open-Vocabulary 3D Scene Understanding

Francis Engelmann, Ayca Takmaz, Jonas Schult +25

This report provides an overview of the challenge hosted at the OpenSUN3D Workshop on Open-Vocabulary 3D Scene Understanding held in conjunction with ICCV 2023. The goal of this wo…

cs.CV2023★ 2 cited

Segment3D: Learning Fine-Grained Class-Agnostic 3D Segmentation without Manual Labels

Rui Huang, Songyou Peng, Ayca Takmaz +5

Current 3D scene segmentation methods are heavily dependent on manually annotated 3D training datasets. Such manual annotations are labor-intensive, and often lack fine-grained det…

cs.CV2023

ALSTER: A Local Spatio-Temporal Expert for Online 3D Semantic Reconstruction

Silvan Weder, Francis Engelmann, Johannes L. Schönberger +3

We propose an online 3D semantic segmentation method that incrementally reconstructs a 3D semantic map from a stream of RGB-D frames. Unlike offline methods, ours is directly appli…

cs.CV2023

LABELMAKER: Automatic Semantic Label Generation from RGB-D Trajectories

Silvan Weder, Hermann Blum, Francis Engelmann +1

Semantic annotations are indispensable to train or evaluate perception models, yet very costly to acquire. This work introduces a fully automated 2D/3D labeling framework that, wit…

cs.CV2022★ 4 cited

Box2Mask: Weakly Supervised 3D Semantic Instance Segmentation Using Bounding Boxes

Julian Chibane, Francis Engelmann, Tuan Anh Tran +1

Current 3D segmentation methods heavily rely on large-scale point-cloud datasets, which are notoriously laborious to annotate. Few attempts have been made to circumvent the need fo…