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Recent advancements in 3D Gaussian Splatting have significantly improved the efficiency and quality of dense semantic SLAM. However, previous methods are generally constrained by limited-category pre-trained classifiers and implicit…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Dianyi Yang , Yu Gao , Xihan Wang , Yufeng Yue , Yi Yang , Mengyin Fu

Semantic segmentation, which refers to pixel-wise classification of an image, is a fundamental topic in computer vision owing to its growing importance in robot vision and autonomous driving industries. It provides rich information about…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Khwaja Monib Sediqi , Hyo Jong Lee

Semantic maps are increasingly utilized in areas such as robotics, autonomous systems, and extended reality, motivating the investigation of efficient compression methods that preserve structured semantic information. This paper studies…

Image and Video Processing · Electrical Eng. & Systems 2026-03-30 Runyu Yang , Junqi Liao , Hyomin Choi , Fabien Racapé , Ivan V. Bajić

Vision foundation models have shown great promise for open-set 3D object retrieval (3DOR) through efficient adaptation to multi-view images. Leveraging semantically aligned latent space, previous work typically adapts the CLIP encoder to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Xinwei He , Yansong Zheng , Qianru Han , Zhichuan Wang , Yuxuan Cai , Yang Zhou , Jingbo Xia , Yulong Wang , Jinhai Xiang , Xiang Bai

Aiming at improving performance of visual classification in a cost-effective manner, this paper proposes an incremental semi-supervised learning paradigm called Deep Co-Space (DCS). Unlike many conventional semi-supervised learning methods…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Ziliang Chen , Keze Wang , Xiao Wang , Pai Peng , Ebroul Izquierdo , Liang Lin

Open-vocabulary semantic mapping enables robots to spatially ground previously unseen concepts without requiring predefined class sets. Current training-free methods commonly rely on multi-view fusion of semantic embeddings into a 3D map,…

Remote sensing image change captioning (RSICC) aims to articulate the changes in objects of interest within bi-temporal remote sensing images using natural language. Given the limitations of current RSICC methods in expressing general…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Yongshuo Zhu , Lu Li , Keyan Chen , Chenyang Liu , Fugen Zhou , Zhenwei Shi

Exploiting 3D Gaussian Splatting (3DGS) with Contrastive Language-Image Pre-Training (CLIP) models for open-vocabulary 3D semantic understanding of indoor scenes has emerged as an attractive research focus. Existing methods typically attach…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Guibiao Liao , Jiankun Li , Zhenyu Bao , Xiaoqing Ye , Qing Li , Kanglin Liu

Distributed Image Compression (DIC) is crucial for multi-view transmission, especially when operating at extremely low bitrates (< 0.1 bpp). Its core challenge is effectively utilizing side information to achieve high-quality reconstruction…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Guojun Xu , Mingyang Zhang , Jianwen Xiang , Cheng Tan , Yanchao Yang , Junwei Zhou

Dense 3D visual mapping estimates as many as possible pixel depths, for each image. This results in very dense point clouds that often contain redundant and noisy information, especially for surfaces that are roughly planar, for instance,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Luca Morreale , Andrea Romanoni , Matteo Matteucci

The rise of large-scale models has catalyzed in-context learning as a powerful approach for multitasking, particularly in natural language and image processing. However, its application to 3D point cloud tasks has been largely unexplored.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Mengyuan Liu , Zhongbin Fang , Xia Li , Joachim M. Buhmann , Deheng Ye , Xiangtai Li , Chen Change Loy

Occupancy prediction provides critical geometric and semantic understanding for robotics but faces efficiency-accuracy trade-offs. Current dense methods suffer computational waste on empty voxels, while sparse query-based approaches lack…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Xiang Li , Yupeng Zheng , Pengfei Li , Yilun Chen , Ya-Qin Zhang , Wenchao Ding

Self-supervised representation learning for visual pre-training has achieved remarkable success with sample (instance or pixel) discrimination and semantics discovery of instance, whereas there still exists a non-negligible gap between…

Computer Vision and Pattern Recognition · Computer Science 2021-09-17 Xiaoni Li , Yu Zhou , Yifei Zhang , Aoting Zhang , Wei Wang , Ning Jiang , Haiying Wu , Weiping Wang

Semantic Scene Completion aims at reconstructing a complete 3D scene with precise voxel-wise semantics from a single-view depth or RGBD image. It is a crucial but challenging problem for indoor scene understanding. In this work, we present…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Yingjie Cai , Xuesong Chen , Chao Zhang , Kwan-Yee Lin , Xiaogang Wang , Hongsheng Li

Monocular depth estimation involves predicting depth from a single RGB image and plays a crucial role in applications such as autonomous driving, robotic navigation, 3D reconstruction, etc. Recent advancements in learning-based methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Jingming Xia , Guanqun Cao , Guang Ma , Yiben Luo , Qinzhao Li , John Oyekan

Many recent machine learning models show dynamic shape characteristics. However, existing AI compiler optimization systems suffer a lot from problems brought by dynamic shape models, including compilation overhead, memory usage,…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-11-24 Kai Zhu , Wenyi Zhao , Zhen Zheng , Tianyou Guo , Pengzhan Zhao , Feiwen Zhu , Junjie Bai , Jun Yang , Xiaoyong Liu , Lansong Diao , Wei Lin

Recent deep learning-based methods for lossy image compression achieve competitive rate-distortion performance through extensive end-to-end training and advanced architectures. However, emerging applications increasingly prioritize semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Ruiqi Shen , Haotian Wu , Wenjing Zhang , Jiangjing Hu , Deniz Gunduz

Unsupervised Concept Extraction aims to extract concepts from a single image; however, existing methods suffer from the inability to extract composable intrinsic concepts. To address this, this paper introduces a new task called…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Hanyu Shi , Hong Tao , Guoheng Huang , Jianbin Jiang , Xuhang Chen , Chi-Man Pun , Shanhu Wang , Pan Pan

This study introduces a novel approach to online embedding of multi-scale CLIP (Contrastive Language-Image Pre-Training) features into 3D maps. By harnessing CLIP, this methodology surpasses the constraints of conventional…

Robotics · Computer Science 2024-03-28 Shun Taguchi , Hideki Deguchi

Effective scene representation is critical for the visual grounding ability of representations, yet existing methods for 3D Visual Grounding are often constrained. They either only focus on geometric and visual cues, or, like traditional 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Qinghongbing Xie , Zijian Liang , Fuhao Li , Long Zeng