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To reconstruct a 3D scene from a set of calibrated views, traditional multi-view stereo techniques rely on two distinct stages: local depth maps computation and global depth maps fusion. Recent studies concentrate on deep neural…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Jaesung Choe , Sunghoon Im , Francois Rameau , Minjun Kang , In So Kweon

General scene understanding for robotics requires flexible semantic representation, so that novel objects and structures which may not have been known at training time can be identified, segmented and grouped. We present an algorithm which…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Kirill Mazur , Edgar Sucar , Andrew J. Davison

We introduce TransformerFusion, a transformer-based 3D scene reconstruction approach. From an input monocular RGB video, the video frames are processed by a transformer network that fuses the observations into a volumetric feature grid…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Aljaž Božič , Pablo Palafox , Justus Thies , Angela Dai , Matthias Nießner

Infrared and visible image fusion has garnered considerable attention owing to the strong complementarity of these two modalities in complex, harsh environments. While deep learning-based fusion methods have made remarkable advances in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Guihui Li , Bowei Dong , Kaizhi Dong , Jiayi Li , Haiyong Zheng

Indoor scene understanding remains a fundamental challenge in robotics, with direct implications for downstream tasks such as navigation and manipulation. Traditional approaches often rely on closed-set recognition or loop closure, limiting…

Robotics · Computer Science 2025-06-10 Hongming Chen , Yiyang Lin , Ziliang Li , Biyu Ye , Yuying Zhang , Ximin Lyu

Functional 3D scene graphs offer a versatile and flexible representation for 3D scene understanding and robotic manipulation, defined by object nodes, interactive elements, and functional relationship edges. However, their potential remains…

Reconstructing 3D models from single-view images is a long-standing problem in computer vision. The latest advances for single-image 3D reconstruction extract a textual description from the input image and further utilize it to synthesize…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Yu Liu , Ruowei Wang , Jiaqi Li , Zixiang Xu , Qijun Zhao

Open-vocabulary panoptic reconstruction is essential for advanced robotics perception and simulation. However, existing methods based on 3D Gaussian Splatting (3DGS) often struggle to simultaneously achieve geometric accuracy, coherent…

Robotics · Computer Science 2026-04-14 Xuan Yu , Yuxuan Xie , Changjian Jiang , Shichao Zhai , Rong Xiong , Yu Zhang , Yue Wang

This paper presents a real-time online vision framework to jointly recover an indoor scene's 3D structure and semantic label. Given noisy depth maps, a camera trajectory, and 2D semantic labels at train time, the proposed deep neural…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Davide Menini , Suryansh Kumar , Martin R. Oswald , Erik Sandstrom , Cristian Sminchisescu , Luc Van Gool

Accurate detection of obstacles in 3D is an essential task for autonomous driving and intelligent transportation. In this work, we propose a general multimodal fusion framework FusionPainting to fuse the 2D RGB image and 3D point clouds at…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Shaoqing Xu , Dingfu Zhou , Jin Fang , Junbo Yin , Zhou Bin , Liangjun Zhang

Open-vocabulary 3D scene understanding enables users to segment novel objects in complex 3D environments through natural language. However, existing approaches remain slow, memory-intensive, and overly complex due to iterative optimization…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Jaehun Bang , Jinhyeok Kim , Minji Kim , Seungheon Jeong , Kyungdon Joo

3D reconstruction has been widely used in autonomous navigation fields of mobile robotics. However, the former research can only provide the basic geometry structure without the capability of open-world scene understanding, limiting…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Haochen Jiang , Yueming Xu , Yihan Zeng , Hang Xu , Wei Zhang , Jianfeng Feng , Li Zhang

3D scene understanding is fundamental for embodied AI and robotics, supporting reliable perception for interaction and navigation. Recent approaches achieve zero-shot, open-vocabulary 3D semantic mapping by assigning embedding vectors to 2D…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Mohamad Amin Mirzaei , Pantea Amoie , Ali Ekhterachian , Matin Mirzababaei , Babak Khalaj

Open-vocabulary panoptic reconstruction is a challenging task for simultaneous scene reconstruction and understanding. Recently, methods have been proposed for 3D scene understanding based on Gaussian splatting. However, these methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yuxuan Xie , Xuan Yu , Changjian Jiang , Sitong Mao , Shunbo Zhou , Rui Fan , Rong Xiong , Yue Wang

This paper tackles the problem of data fusion in the semantic scene completion (SSC) task, which can simultaneously deal with semantic labeling and scene completion. RGB images contain texture details of the object(s) which are vital for…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Yu Liu , Jie Li , Qingsen Yan , Xia Yuan , Chunxia Zhao , Ian Reid , Cesar Cadena

Open-vocabulary 3D scene understanding is crucial for applications requiring natural language-driven spatial interpretation, such as robotics and augmented reality. While 3D Gaussian Splatting (3DGS) offers a powerful representation for…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Wei Sun , Yanzhao Zhou , Jianbin Jiao , Yuan Li

3D open-vocabulary scene graph methods are a promising map representation for embodied agents, however many current approaches are computationally expensive. In this paper, we reexamine the critical design choices established in previous…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Christina Kassab , Matías Mattamala , Sacha Morin , Martin Büchner , Abhinav Valada , Liam Paull , Maurice Fallon

Mapping and understanding complex 3D environments is fundamental to how autonomous systems perceive and interact with the physical world, requiring both precise geometric reconstruction and rich semantic comprehension. While existing 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Naman Patel , Prashanth Krishnamurthy , Farshad Khorrami

In this paper, we investigate the use of diffusion models which are pre-trained on large-scale image-caption pairs for open-vocabulary 3D semantic understanding. We propose a novel method, namely Diff2Scene, which leverages frozen…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Xiaoyu Zhu , Hao Zhou , Pengfei Xing , Long Zhao , Hao Xu , Junwei Liang , Alexander Hauptmann , Ting Liu , Andrew Gallagher

Current open-vocabulary scene graph generation algorithms highly rely on both 3D scene point cloud data and posed RGB-D images and thus have limited applications in scenarios where RGB-D images or camera poses are not readily available. To…

Robotics · Computer Science 2024-09-17 Yifan Xu , Ziming Luo , Qianwei Wang , Vineet Kamat , Carol Menassa