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Three-dimensional (3D) reconstruction of head Computed Tomography (CT) images elucidates the intricate spatial relationships of tissue structures, thereby assisting in accurate diagnosis. Nonetheless, securing an optimal head CT scan…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Bowen Zheng , Chenxi Huang , Yuemei Luo

Learning effective multi-modal 3D representations of objects is essential for numerous applications, such as augmented reality and robotics. Existing methods often rely on task-specific embeddings that are tailored either for semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Gaia Di Lorenzo , Federico Tombari , Marc Pollefeys , Daniel Barath

Recent approaches to jointly reconstruct 3D humans and objects from a single RGB image represent 3D shapes with template-based or coarse models, which fail to capture details of loose clothing on human bodies. In this paper, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Ayushi Dutta , Marco Pesavento , Marco Volino , Adrian Hilton , Armin Mustafa

This work focuses on the 3D reconstruction of non-rigid objects based on monocular RGB video sequences. Concretely, we aim at building high-fidelity models for generic object categories and casually captured scenes. To this end, we do not…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Yikai Wang , Yinpeng Dong , Fuchun Sun , Xiao Yang

We propose a novel framework for fine-grained object recognition that learns to recover object variation in 3D space from a single image, trained on an image collection without using any ground-truth 3D annotation. We accomplish this by…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Sunghun Joung , Seungryong Kim , Minsu Kim , Ig-Jae Kim , Kwanghoon Sohn

Open-vocabulary 3D object detection (OV-3Det) aims to generalize beyond the limited number of base categories labeled during the training phase. The biggest bottleneck is the scarcity of annotated 3D data, whereas 2D image datasets are…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Timing Yang , Yuanliang Ju , Li Yi

Monocular 3D object detection (Mono3D) holds noteworthy promise for autonomous driving applications owing to the cost-effectiveness and rich visual context of monocular camera sensors. However, depth ambiguity poses a significant challenge,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Hou-I Liu , Christine Wu , Jen-Hao Cheng , Wenhao Chai , Shian-Yun Wang , Gaowen Liu , Hugo Latapie , Jhih-Ciang Wu , Jenq-Neng Hwang , Hong-Han Shuai , Wen-Huang Cheng

We introduce a framework for multi-camera 3D object detection. In contrast to existing works, which estimate 3D bounding boxes directly from monocular images or use depth prediction networks to generate input for 3D object detection from 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Yue Wang , Vitor Guizilini , Tianyuan Zhang , Yilun Wang , Hang Zhao , Justin Solomon

Current 3D object detection models follow a single dataset-specific training and testing paradigm, which often faces a serious detection accuracy drop when they are directly deployed in another dataset. In this paper, we study the task of…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Bo Zhang , Jiakang Yuan , Botian Shi , Tao Chen , Yikang Li , Yu Qiao

3D object reconstruction is important for semantic scene understanding. It is challenging to reconstruct detailed 3D shapes from monocular images directly due to a lack of depth information, occlusion and noise. Most current methods…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Ziwei Liao , Steven L. Waslander

Training deep-learning-based vision systems require the manual annotation of a significant number of images. Such manual annotation is highly time-consuming and labor-intensive. Although previous studies have attempted to eliminate the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Takuya Kiyokawa , Naoki Shirakura , Hiroki Katayama , Keita Tomochika , Jun Takamatsu

Reconstructing dynamic articulated objects from a singular monocular video is challenging, requiring joint estimation of shape, motion, and camera parameters from limited views. Current methods typically demand extensive computational…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Hao Zhang , Fang Li , Samyak Rawlekar , Narendra Ahuja

Humans are in constant contact with the world as they move through it and interact with it. This contact is a vital source of information for understanding 3D humans, 3D scenes, and the interactions between them. In fact, we demonstrate…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Hongwei Yi , Chun-Hao P. Huang , Dimitrios Tzionas , Muhammed Kocabas , Mohamed Hassan , Siyu Tang , Justus Thies , Michael J. Black

Learning object-centric representations of multi-object scenes is a promising approach towards machine intelligence, facilitating high-level reasoning and control from visual sensory data. However, current approaches for unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Li Nanbo , Cian Eastwood , Robert B. Fisher

Discovering 3D arrangements of objects from single indoor images is important given its many applications including interior design, content creation, etc. Although heavily researched in the recent years, existing approaches break down…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Moos Hueting , Pradyumna Reddy , Vladimir Kim , Ersin Yumer , Nathan Carr , Niloy Mitra

The detection of 3D objects through a single perspective camera is a challenging issue. The anchor-free and keypoint-based models receive increasing attention recently due to their effectiveness and simplicity. However, most of these…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Wei Chen , Jie Zhao , Wan-Lei Zhao , Song-Yuan Wu

A major challenge in monocular 3D object detection is the limited diversity and quantity of objects in real datasets. While augmenting real scenes with virtual objects holds promise to improve both the diversity and quantity of the objects,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Yunhao Ge , Hong-Xing Yu , Cheng Zhao , Yuliang Guo , Xinyu Huang , Liu Ren , Laurent Itti , Jiajun Wu

We present a novel method for recovering the absolute pose and shape of a human in a pre-scanned scene given a single image. Unlike previous methods that perform sceneaware mesh optimization, we propose to first estimate absolute position…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Zehong Shen , Zhi Cen , Sida Peng , Qing Shuai , Hujun Bao , Xiaowei Zhou

Conventional self-supervised monocular depth prediction methods are based on a static environment assumption, which leads to accuracy degradation in dynamic scenes due to the mismatch and occlusion problems introduced by object motions.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Ziyue Feng , Liang Yang , Longlong Jing , Haiyan Wang , YingLi Tian , Bing Li

Human pose estimation from single images is a challenging problem in computer vision that requires large amounts of labeled training data to be solved accurately. Unfortunately, for many human activities (\eg outdoor sports) such training…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Bastian Wandt , Marco Rudolph , Petrissa Zell , Helge Rhodin , Bodo Rosenhahn