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This paper focuses on semantic scene completion, a task for producing a complete 3D voxel representation of volumetric occupancy and semantic labels for a scene from a single-view depth map observation. Previous work has considered scene…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Shuran Song , Fisher Yu , Andy Zeng , Angel X. Chang , Manolis Savva , Thomas Funkhouser

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 datasets. While transformers have been adapted for 3D vision, a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Guangda Ji , Silvan Weder , Francis Engelmann , Marc Pollefeys , Hermann Blum

Human driver can easily describe the complex traffic scene by visual system. Such an ability of precise perception is essential for driver's planning. To achieve this, a geometry-aware representation that quantizes the physical 3D scene…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Chonghao Sima , Wenwen Tong , Tai Wang , Li Chen , Silei Wu , Hanming Deng , Yi Gu , Lewei Lu , Ping Luo , Dahua Lin , Hongyang Li

Recent advances in 3D vision-language models (VLMs) highlight a strong potential for 3D scene understanding and reasoning. However, effectively tokenizing 3D scenes into holistic scene tokens, and leveraging these tokens across diverse 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Yutao Tang , Cheng Zhao , Gaurav Mittal , Rohith Kukkala , Rama Chellappa , Cheng Peng , Mei Chen

Traditional closed-set 3D detection frameworks fail to meet the demands of open-world applications like autonomous driving. Existing open-vocabulary 3D detection methods typically adopt a two-stage pipeline consisting of pseudo-label…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Qi Liu , Yabei Li , Hongsong Wang , Lei He

In recent years there has been significant progress in the field of 3D learning on classification, detection and segmentation problems. The vast majority of the existing studies focus on canonical closed-set conditions, neglecting the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Antonio Alliegro , Francesco Cappio Borlino , Tatiana Tommasi

Existing 3D facial emotion modeling have been constrained by limited emotion classes and insufficient datasets. This paper introduces "Emo3D", an extensive "Text-Image-Expression dataset" spanning a wide spectrum of human emotions, each…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Mahshid Dehghani , Amirahmad Shafiee , Ali Shafiei , Neda Fallah , Farahmand Alizadeh , Mohammad Mehdi Gholinejad , Hamid Behroozi , Jafar Habibi , Ehsaneddin Asgari

Evaluating the performance of Multi-modal Large Language Models (MLLMs), integrating both point cloud and language, presents significant challenges. The lack of a comprehensive assessment hampers determining whether these models truly…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Junjie Zhang , Tianci Hu , Xiaoshui Huang , Yongshun Gong , Dan Zeng

Despite recent advances in text-conditioned 3D indoor scene generation, there remain gaps in the evaluation of these methods. Existing metrics often measure realism by comparing generated scenes to a set of ground-truth scenes, but they…

Graphics · Computer Science 2026-03-10 Hou In Ivan Tam , Hou In Derek Pun , Austin T. Wang , Angel X. Chang , Manolis Savva

Modern 3D object detection datasets are constrained by narrow class taxonomies and costly manual annotations, limiting their ability to scale to open-world settings. In contrast, 2D vision-language models trained on web-scale image-text…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Atharv Goel , Mehar Khurana

Object detection (OD) in computer vision has made significant progress in recent years, transitioning from closed-set labels to open-vocabulary detection (OVD) based on large-scale vision-language pre-training (VLP). However, current…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Yiyang Yao , Peng Liu , Tiancheng Zhao , Qianqian Zhang , Jiajia Liao , Chunxin Fang , Kyusong Lee , Qing Wang

Precise 3D environmental mapping is pivotal in robotics. Existing methods often rely on predefined concepts during training or are time-intensive when generating semantic maps. This paper presents Open-Fusion, a groundbreaking approach for…

Computer Vision and Pattern Recognition · Computer Science 2023-10-09 Kashu Yamazaki , Taisei Hanyu , Khoa Vo , Thang Pham , Minh Tran , Gianfranco Doretto , Anh Nguyen , Ngan Le

This paper introduces Scene-LLM, a 3D-visual-language model that enhances embodied agents' abilities in interactive 3D indoor environments by integrating the reasoning strengths of Large Language Models (LLMs). Scene-LLM adopts a hybrid 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Rao Fu , Jingyu Liu , Xilun Chen , Yixin Nie , Wenhan Xiong

The rise of vision-language foundation models marks an advancement in bridging the gap between human and machine capabilities in 3D scene reasoning. Existing 3D reasoning benchmarks assume real-time scene accessibility, which is impractical…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Ye Mao , Weixun Luo , Junpeng Jing , Anlan Qiu , Krystian Mikolajczyk

Systems which incrementally create 3D semantic maps from image sequences must store and update representations of both geometry and semantic entities. However, while there has been much work on the correct formulation for geometrical…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Shuaifeng Zhi , Michael Bloesch , Stefan Leutenegger , Andrew J. Davison

This paper presents a novel 3D semantic segmentation method for large-scale point cloud data that does not require annotated 3D training data or paired RGB images. The proposed approach projects 3D point clouds onto 2D images using virtual…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Toshihiko Nishimura , Hirofumi Abe , Kazuhiko Murasaki , Taiga Yoshida , Ryuichi Tanida

Recent advancements in multi-modal large language models (MLLMs) have shown strong potential for 3D scene understanding. However, existing methods struggle with fine-grained object grounding and contextual reasoning, limiting their ability…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Haifeng Huang , Yilun Chen , Zehan Wang , Jiangmiao Pang , Zhou Zhao

3D Gaussian Splatting has recently gained traction for its efficient training and real-time rendering. While its vanilla representation is mainly designed for view synthesis, recent works extended it to scene understanding with language…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Siyun Liang , Sen Wang , Kunyi Li , Michael Niemeyer , Stefano Gasperini , Hendrik P. A. Lensch , Nassir Navab , Federico Tombari

3D Gaussian Splatting (3DGS) serves as a highly performant and efficient encoding of scene geometry, appearance, and semantics. Moreover, grounding language in 3D scenes has proven to be an effective strategy for 3D scene understanding.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Mengjiao Ma , Qi Ma , Yue Li , Jiahuan Cheng , Runyi Yang , Bin Ren , Nikola Popovic , Mingqiang Wei , Nicu Sebe , Luc Van Gool , Theo Gevers , Martin R. Oswald , Danda Pani Paudel

We describe an approach to predict open-vocabulary 3D semantic voxel occupancy map from input 2D images with the objective of enabling 3D grounding, segmentation and retrieval of free-form language queries. This is a challenging problem…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Antonin Vobecky , Oriane Siméoni , David Hurych , Spyros Gidaris , Andrei Bursuc , Patrick Pérez , Josef Sivic