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We introduce ORIGEN, the first zero-shot method for 3D orientation grounding in text-to-image generation across multiple objects and diverse categories. While previous work on spatial grounding in image generation has mainly focused on 2D…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Yunhong Min , Daehyeon Choi , Kyeongmin Yeo , Jihyun Lee , Minhyuk Sung

Visual grounding is a task to locate the target indicated by a natural language expression. Existing methods extend the generic object detection framework to this problem. They base the visual grounding on the features from pre-generated…

计算机视觉与模式识别 · 计算机科学 2022-06-09 Li Yang , Yan Xu , Chunfeng Yuan , Wei Liu , Bing Li , Weiming Hu

Despite recent breakthroughs in reinforcement learning (RL) and imitation learning (IL), existing algorithms fail to generalize beyond the training environments. In reality, humans can adapt to new tasks quickly by leveraging prior…

机器学习 · 计算机科学 2023-04-18 Tianshi Cao , Jingkang Wang , Yining Zhang , Sivabalan Manivasagam

Digital human generation has been studied for decades and supports a wide range of real-world applications. However, most existing systems are passively animated, relying on privileged state or scripted control, which limits scalability to…

计算机视觉与模式识别 · 计算机科学 2026-04-10 Hang Ye , Xiaoxuan Ma , Fan Lu , Wayne Wu , Kwan-Yee Lin , Yizhou Wang

Despite recent advances in multimodal content generation enabled by vision-language models (VLMs), their ability to reason about and generate structured 3D scenes remains largely underexplored. This limitation constrains their utility in…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Xinhang Liu , Yu-Wing Tai , Chi-Keung Tang

Current foundation models for 3D shapes excel at global tasks (retrieval, classification) but transfer poorly to local part-level reasoning. Recent approaches leverage vision and language foundation models to directly solve dense tasks…

计算机视觉与模式识别 · 计算机科学 2026-01-07 Souhail Hadgi , Bingchen Gong , Ramana Sundararaman , Emery Pierson , Lei Li , Peter Wonka , Maks Ovsjanikov

Vision-language models (VLMs) show great promise for 3D scene understanding but are mainly applied to indoor spaces or autonomous driving, focusing on low-level tasks like segmentation. This work expands their use to urban-scale…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Valentin Bieri , Marco Zamboni , Nicolas S. Blumer , Qingxuan Chen , Francis Engelmann

3D visual grounding (3DVG) is a critical task in scene understanding that aims to identify objects in 3D scenes based on text descriptions. However, existing methods rely on separately pre-trained vision and text encoders, resulting in a…

计算机视觉与模式识别 · 计算机科学 2025-06-18 Yinuo Zheng , Lipeng Gu , Honghua Chen , Liangliang Nan , Mingqiang Wei

Vision-Language Navigation (VLN) aims to guide agents by leveraging language instructions and visual cues, playing a pivotal role in embodied AI. Indoor VLN has been extensively studied, whereas outdoor aerial VLN remains underexplored. The…

Reasoning about spatial relationships between objects is essential for many real-world robotic tasks, such as fetch-and-delivery, object rearrangement, and object search. The ability to detect and disambiguate different objects and identify…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Negar Nejatishahidin , Madhukar Reddy Vongala , Jana Kosecka

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…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Toshihiko Nishimura , Hirofumi Abe , Kazuhiko Murasaki , Taiga Yoshida , Ryuichi Tanida

3D visual grounding is the task of localizing the object in a 3D scene which is referred by a description in natural language. With a wide range of applications ranging from autonomous indoor robotics to AR/VR, the task has recently risen…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Ozan Unal , Christos Sakaridis , Suman Saha , Luc Van Gool

Recent deep learning architectures can recognize instances of 3D point cloud objects of previously seen classes quite well. At the same time, current 3D depth camera technology allows generating/segmenting a large amount of 3D point cloud…

计算机视觉与模式识别 · 计算机科学 2019-02-28 Ali Cheraghian , Shafin Rahman , Lars Petersson

Vision-Language-Action (VLA) models have recently achieved remarkable progress in robotic perception and control, yet most existing approaches primarily rely on VLM trained using 2D images, which limits their spatial understanding and…

计算机视觉与模式识别 · 计算机科学 2026-04-27 Zhifeng Rao , Wenlong Chen , Lei Xie , Xia Hua , Dongfu Yin , Zhen Tian , F. Richard Yu

Vision-Language Models (VLMs) have enabled autonomous GUI agents that translate natural language instructions into executable screen coordinates. However, grounding performance degrades in high-resolution interfaces, where dense layouts and…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Ruilin Yao , Shegnwu Xiong , Tianyu Zou , Shili Xiong , Yi Rong

Visual grounding (VG) aims to establish fine-grained alignment between vision and language. Ideally, it can be a testbed for vision-and-language models to evaluate their understanding of the images and texts and their reasoning abilities…

计算机视觉与模式识别 · 计算机科学 2023-07-24 Zhihong Chen , Ruifei Zhang , Yibing Song , Xiang Wan , Guanbin Li

We introduce Dream2Real, a robotics framework which integrates vision-language models (VLMs) trained on 2D data into a 3D object rearrangement pipeline. This is achieved by the robot autonomously constructing a 3D representation of the…

机器人学 · 计算机科学 2024-07-31 Ivan Kapelyukh , Yifei Ren , Ignacio Alzugaray , Edward Johns

Open-vocabulary semantic segmentation enables models to recognize and segment objects from arbitrary natural language descriptions, offering the flexibility to handle novel, fine-grained, or functionally defined categories beyond fixed…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Chongyu Wang , Kunlei Jing , Jihua Zhu , Di Wang

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…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Yuxuan Liu , Yuan Yixuan , Ming Liu

3D visual grounding (VG) aims to locate objects or regions within 3D scenes guided by natural language descriptions. While indoor 3D VG has advanced, outdoor 3D VG remains underexplored due to two challenges: (1) large-scale outdoor LiDAR…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Yeong-Seung Baek , Heung-Seon Oh