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The lack of a large-scale 3D-text corpus has led recent works to distill open-vocabulary knowledge from vision-language models (VLMs). However, these methods typically rely on a single VLM to align the feature spaces of 3D models within a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Jinlong Li , Cristiano Saltori , Fabio Poiesi , Nicu Sebe

Traditional 3D scene understanding approaches rely on labeled 3D datasets to train a model for a single task with supervision. We propose OpenScene, an alternative approach where a model predicts dense features for 3D scene points that are…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Songyou Peng , Kyle Genova , Chiyu "Max" Jiang , Andrea Tagliasacchi , Marc Pollefeys , Thomas Funkhouser

Open-vocabulary scene understanding aims to localize and recognize unseen categories beyond the annotated label space. The recent breakthrough of 2D open-vocabulary perception is largely driven by Internet-scale paired image-text data with…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Runyu Ding , Jihan Yang , Chuhui Xue , Wenqing Zhang , Song Bai , Xiaojuan Qi

Training models to apply common-sense linguistic knowledge and visual concepts from 2D images to 3D scene understanding is a promising direction that researchers have only recently started to explore. However, it still remains understudied…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Alexandros Delitzas , Maria Parelli , Nikolas Hars , Georgios Vlassis , Sotirios Anagnostidis , Gregor Bachmann , Thomas Hofmann

Cross-modal systems trained on 2D visual inputs are presented with a dimensional shift when processing 3D scenes. An in-scene camera bridges the dimensionality gap but requires learning a control module. We introduce a new method that…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Jason Armitage , Rico Sennnrich

Recent advancements in 3D scene understanding have made significant strides in enabling interaction with scenes using open-vocabulary queries, particularly for VR/AR and robotic applications. Nevertheless, existing methods are hindered by…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Dianyi Yang , Xihan Wang , Yu Gao , Shiyang Liu , Bohan Ren , Yufeng Yue , Yi Yang

The ability to interpret and comprehend a 3D scene is essential for many vision and robotics systems. In numerous applications, this involves 3D object detection, i.e.~identifying the location and dimensions of objects belonging to a…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Olivier Moliner , Viktor Larsson , Kalle Åström

Open-vocabulary 3D object detection (OV-3DOD) aims at localizing and classifying novel objects beyond closed sets. The recent success of vision-language models (VLMs) has demonstrated their remarkable capabilities to understand open…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Youjun Zhao , Jiaying Lin , Rynson W. H. Lau

Vision-language-action models (VLAs) have shown generalization capabilities in robotic manipulation tasks by inheriting from vision-language models (VLMs) and learning action generation. Most VLA models focus on interpreting vision and…

Recently, distilling open-vocabulary language features from 2D images into 3D Gaussians has attracted significant attention. Although existing methods achieve impressive language-based interactions of 3D scenes, we observe two fundamental…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Sen Wang , Kunyi Li , Siyun Liang , Elena Alegret , Jing Ma , Nassir Navab , Stefano Gasperini

Recently, learning open-vocabulary semantic segmentation from text supervision has achieved promising downstream performance. Nevertheless, current approaches encounter an alignment granularity gap owing to the absence of dense annotations,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 Yajie Liu , Pu Ge , Qingjie Liu , Di Huang

Multimodal representation learning has shown promising improvements on various vision-language tasks. Most existing methods excel at building global-level alignment between vision and language while lacking effective fine-grained image-text…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Zijia Zhao , Longteng Guo , Xingjian He , Shuai Shao , Zehuan Yuan , Jing Liu

Zero-shot scene understanding in real-world settings presents major challenges due to the complexity and variability of natural scenes, where models must recognize new objects, actions, and contexts without prior labeled examples. This work…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Manjunath Prasad Holenarasipura Rajiv , B. M. Vidyavathi

The goal of this paper is to optimize the training process of diffusion-based text-to-speech models. While recent studies have achieved remarkable advancements, their training demands substantial time and computational costs, largely due to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-02 Jeongsoo Choi , Zhikang Niu , Ji-Hoon Kim , Chunhui Wang , Joon Son Chung , Xie Chen

In recent years, the growing demand for medical imaging diagnosis has placed a significant burden on radiologists. As a solution, Medical Vision-Language Pre-training (Med-VLP) methods have been proposed to learn universal representations…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Ke Zhang , Yan Yang , Jun Yu , Hanliang Jiang , Jianping Fan , Qingming Huang , Weidong Han

Open-vocabulary 3D scene understanding presents a significant challenge in the field. Recent works have sought to transfer knowledge embedded in vision-language models from 2D to 3D domains. However, these approaches often require prior…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Hanchen Tai , Qingdong He , Jiangning Zhang , Yijie Qian , Zhenyu Zhang , Xiaobin Hu , Xiangtai Li , Yabiao Wang , Yong Liu

Recent developments in Multimodal Large Language Models (MLLMs) have significantly improved Vision-Language (VL) reasoning in 2D domains. However, extending these capabilities to 3D scene understanding remains a major challenge. Existing 3D…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Haijier Chen , Bo Xu , Shoujian Zhang , Haoze Liu , Jiaxuan Lin , Jingrong Wang

Open-vocabulary semantic segmentation aims to assign labels to every pixel in an image based on text labels. Existing approaches typically utilize vision-language models (VLMs), such as CLIP, for dense prediction. However, VLMs, pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Zhen Yao , Xin Li , Taotao Jing , Shuai Zhang , Mooi Choo Chuah

Abstract semantic 3D scene understanding is a problem of critical importance in robotics. As robots still lack the common-sense knowledge about household objects and locations of an average human, we investigate the use of pre-trained…

Robotics · Computer Science 2023-11-09 William Chen , Siyi Hu , Rajat Talak , Luca Carlone

Utilizing vision and language models (VLMs) pre-trained on large-scale image-text pairs is becoming a promising paradigm for open-vocabulary visual recognition. In this work, we extend this paradigm by leveraging motion and audio that…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Rui Qian , Yeqing Li , Zheng Xu , Ming-Hsuan Yang , Serge Belongie , Yin Cui
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