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The emerging trend in computer vision emphasizes developing universal models capable of simultaneously addressing multiple diverse tasks. Such universality typically requires joint training across multi-domain datasets to ensure effective…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Eunsoo Im , Changhyun Jee , Jung Kwon Lee

Monocular depth estimation enables 3D perception from a single 2D image, thus attracting much research attention for years. Almost all methods treat foreground and background regions ("things and stuff") in an image equally. However, not…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Xinlong Wang , Wei Yin , Tao Kong , Yuning Jiang , Lei Li , Chunhua Shen

Estimating the 3D position and orientation of objects in the environment with a single RGB camera is a critical and challenging task for low-cost urban autonomous driving and mobile robots. Most of the existing algorithms are based on the…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Yuxuan Liu , Yuan Yixuan , Ming Liu

Monocular 3D foundation models offer an extensible solution for perception tasks, making them attractive for broader 3D vision applications. In this paper, we propose MoRe, a training-free Monocular Geometry Refinement method designed to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Dongki Jung , Jaehoon Choi , Yonghan Lee , Sungmin Eum , Heesung Kwon , Dinesh Manocha

Monocular 3D object detection is an important yet challenging task in autonomous driving. Some existing methods leverage depth information from an off-the-shelf depth estimator to assist 3D detection, but suffer from the additional…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Kuan-Chih Huang , Tsung-Han Wu , Hung-Ting Su , Winston H. Hsu

Vision-Language Models (VLMs) excel at 2D tasks such as grounding and captioning, yet remain limited in 3D understanding. A key limitation is their text-only supervision paradigm, which under-constrains fine-grained visual perception and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Hanxun Yu , Xuan Qu , Yuxin Wang , Jianke Zhu , Lei Ke

Depth estimation is a core problem in robotic perception and vision tasks, but 3D reconstruction from a single image presents inherent uncertainties. Current depth estimation models primarily rely on inter-image relationships for supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jinchang Zhang , Guoyu Lu

3D vision-language grounding, which focuses on aligning language with the 3D physical environment, stands as a cornerstone in the development of embodied agents. In comparison to recent advancements in the 2D domain, grounding language in…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Baoxiong Jia , Yixin Chen , Huangyue Yu , Yan Wang , Xuesong Niu , Tengyu Liu , Qing Li , Siyuan Huang

The rapid development of Large Multimodal Models (LMMs) has led to remarkable progress in 2D visual understanding; however, extending these capabilities to 3D scene understanding remains a significant challenge. Existing approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Hongpei Zheng , Lintao Xiang , Qijun Yang , Qian Lin , Hujun Yin

Expanding multimodal representations to novel modalities is constrained by reliance on large-scale paired datasets (e.g., text-image, text-audio, text-3D, text-molecule), which are costly and often infeasible in domains requiring expert…

Machine Learning · Computer Science 2026-02-24 Soyeon Hong , Jinchan Kim , Jaegook You , Seungtaek Choi , Suha Kwak , Hyunsouk Cho

Visual grounding of Language aims at enriching textual representations of language with multiple sources of visual knowledge such as images and videos. Although visual grounding is an area of intense research, inter-lingual aspects of…

Computation and Language · Computer Science 2022-11-22 Wafaa Mohammed , Hassan Shahmohammadi , Hendrik P. A. Lensch , R. Harald Baayen

Accurate height estimation from monocular aerial imagery presents a significant challenge due to its inherently ill-posed nature. This limitation is rooted in the absence of adequate geometric constraints available to the model when…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Xiaomou Hou , Wanshui Gan , Naoto Yokoya

While monocular depth estimation (MDE) is an important problem in computer vision, it is difficult due to the ambiguity that results from the compression of a 3D scene into only 2 dimensions. It is common practice in the field to treat it…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Dylan Auty , Krystian Mikolajczyk

Localizing text in low-light environments is challenging due to visual degradations. Although a straightforward solution involves a two-stage pipeline with low-light image enhancement (LLE) as the initial step followed by detector, LLE is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Chengpei Xu , Hao Fu , Long Ma , Wenjing Jia , Chengqi Zhang , Feng Xia , Xiaoyu Ai , Binghao Li , Wenjie Zhang

3D visual grounding aims to find the object within point clouds mentioned by free-form natural language descriptions with rich semantic cues. However, existing methods either extract the sentence-level features coupling all words or focus…

Computer Vision and Pattern Recognition · Computer Science 2023-10-09 Yanmin Wu , Xinhua Cheng , Renrui Zhang , Zesen Cheng , Jian Zhang

3-Dimensional Embodied Reference Understanding (3D-ERU) combines a language description and an accompanying pointing gesture to identify the most relevant target object in a 3D scene. Although prior work has explored pure language-based 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Atharv Mahesh Mane , Dulanga Weerakoon , Vigneshwaran Subbaraju , Sougata Sen , Sanjay E. Sarma , Archan Misra

This paper investigates the geometric consistency for monocular 3D object detection, which suffers from the ill-posed depth estimation. We first conduct a thorough analysis to reveal how existing methods fail to consistently localize…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Qing Lian , Botao Ye , Ruijia Xu , Weilong Yao , Tong Zhang

Progress in 3D vision-language learning has been hindered by the scarcity of large-scale 3D datasets. We introduce UniVLG, a unified architecture for 2D and 3D vision-language understanding that bridges the gap between existing 2D-centric…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Ayush Jain , Alexander Swerdlow , Yuzhou Wang , Sergio Arnaud , Ada Martin , Alexander Sax , Franziska Meier , Katerina Fragkiadaki

Monocular 3D object detection reveals an economical but challenging task in autonomous driving. Recently center-based monocular methods have developed rapidly with a great trade-off between speed and accuracy, where they usually depend on…

Computer Vision and Pattern Recognition · Computer Science 2023-02-22 Zizhang Wu , Yuanzhu Gan , Lei Wang , Guilian Chen , Jian Pu

Enabling intelligent agents to comprehend and interact with 3D environments through natural language is crucial for advancing robotics and human-computer interaction. A fundamental task in this field is ego-centric 3D visual grounding,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Henry Zheng , Hao Shi , Qihang Peng , Yong Xien Chng , Rui Huang , Yepeng Weng , Zhongchao Shi , Gao Huang