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Accurately reconstructing complex full multi-object scenes from sparse observations remains a core challenge in computer vision and a key step toward scalable and reliable simulation for robotics. In this work, we introduce RecGen, a…

Reconstructing hand-held objects from monocular RGB images is an appealing yet challenging task. In this task, contacts between hands and objects provide important cues for recovering the 3D geometry of the hand-held objects. Though recent…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Junxing Hu , Hongwen Zhang , Zerui Chen , Mengcheng Li , Yunlong Wang , Yebin Liu , Zhenan Sun

Scene reconstruction from unorganized RGB images is an important task in many computer vision applications. Multi-view Stereo (MVS) is a common solution in photogrammetry applications for the dense reconstruction of a static scene. The…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Matthias Innmann , Kihwan Kim , Jinwei Gu , Matthias Niessner , Charles Loop , Marc Stamminger , Jan Kautz

Neural implicit representations have revolutionized dense multi-view surface reconstruction, yet their performance significantly diminishes with sparse input views. A few pioneering works have sought to tackle the challenge of sparse-view…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Sheng Ye , Yuze He , Matthieu Lin , Jenny Sheng , Ruoyu Fan , Yiheng Han , Yubin Hu , Ran Yi , Yu-Hui Wen , Yong-Jin Liu , Wenping Wang

We propose NVS-HO, the first benchmark designed for novel view synthesis of handheld objects in real-world environments using only RGB inputs. Each object is recorded in two complementary RGB sequences: (1) a handheld sequence, where the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Musawar Ali , Manuel Carranza-García , Nicola Fioraio , Samuele Salti , Luigi Di Stefano

We propose a method for in-hand 3D scanning of an unknown object with a monocular camera. Our method relies on a neural implicit surface representation that captures both the geometry and the appearance of the object, however, by contrast…

Computer Vision and Pattern Recognition · Computer Science 2023-06-23 Shreyas Hampali , Tomas Hodan , Luan Tran , Lingni Ma , Cem Keskin , Vincent Lepetit

Our work aims to reconstruct hand-object interactions from a single-view image, which is a fundamental but ill-posed task. Unlike methods that reconstruct from videos, multi-view images, or predefined 3D templates, single-view…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Yumeng Liu , Xiaoxiao Long , Zemin Yang , Yuan Liu , Marc Habermann , Christian Theobalt , Yuexin Ma , Wenping Wang

Capturing the interactions between humans and their environment in 3D is important for many applications in robotics, graphics, and vision. Recent works to reconstruct the 3D human and object from a single RGB image do not have consistent…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Xianghui Xie , Bharat Lal Bhatnagar , Gerard Pons-Moll

Reconstructing hand-held objects in 3D from monocular images remains a significant challenge in computer vision. Most existing approaches rely on implicit 3D representations, which produce overly smooth reconstructions and are…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Zerui Chen , Rolandos Alexandros Potamias , Shizhe Chen , Cordelia Schmid

Recently, data-driven single-view reconstruction methods have shown great progress in modeling 3D dressed humans. However, such methods suffer heavily from depth ambiguities and occlusions inherent to single view inputs. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Pierre Zins , Yuanlu Xu , Edmond Boyer , Stefanie Wuhrer , Tony Tung

Estimating 3D hand mesh from RGB images is a longstanding track, in which occlusion is one of the most challenging problems. Existing attempts towards this task often fail when the occlusion dominates the image space. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Yinqiao Wang , Hao Xu , Pheng-Ann Heng , Chi-Wing Fu

Estimating the 3D poses of hands and objects from a single RGB image is a fundamental yet challenging problem, with broad applications in augmented reality and human-computer interaction. Existing methods largely rely on visual cues alone,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Jun Zhou , Chi Xu , Kaifeng Tang , Yuting Ge , Tingrui Guo , Li Cheng

Generative 3D reconstruction shows strong potential in incomplete observations. While sparse-view and single-image reconstruction are well-researched, partial observation remains underexplored. In this context, dense views are accessible…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Yuxuan Lin , Ruihang Chu , Zhenyu Chen , Xiao Tang , Lei Ke , Haoling Li , Yingji Zhong , Zhihao Li , Shiyong Liu , Xiaofei Wu , Jianzhuang Liu , Yujiu Yang

Recent advances have enabled 3d object reconstruction approaches using a single off-the-shelf RGB-D camera. Although these approaches are successful for a wide range of object classes, they rely on stable and distinctive geometric or…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Dimitrios Tzionas , Juergen Gall

Unseen object pose estimation methods often rely on CAD models or multiple reference views, making the onboarding stage costly. To simplify reference acquisition, we aim to estimate the unseen object's pose through a single unposed RGB-D…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Xingyu Liu , Gu Wang , Ruida Zhang , Chenyangguang Zhang , Federico Tombari , Xiangyang Ji

Many imaging technologies rely on tomographic reconstruction, which requires solving a multidimensional inverse problem given a finite number of projections. Backprojection is a popular class of algorithm for tomographic reconstruction,…

Image and Video Processing · Electrical Eng. & Systems 2020-06-03 Xueqing Liu , Paul Sajda

Hand-object interaction understanding and the barely addressed novel view synthesis are highly desired in the immersive communication, whereas it is challenging due to the high deformation of hand and heavy occlusions between hand and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Wentian Qu , Zhaopeng Cui , Yinda Zhang , Chenyu Meng , Cuixia Ma , Xiaoming Deng , Hongan Wang

Reconstructing 3D models of dynamic, real-world objects with high-fidelity textures from monocular frame sequences has been a challenging problem in recent years. This difficulty stems from factors such as shadows, indirect illumination,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Alakh Aggarwal , Ningna Wang , Xiaohu Guo

Sparse coding is a common approach to learning local features for object recognition. Recently, there has been an increasing interest in learning features from spatio-temporal, binocular, or other multi-observation data, where the goal is…

Computer Vision and Pattern Recognition · Computer Science 2012-06-22 Roland Memisevic

We propose a novel diffusion-based framework for reconstructing 3D geometry of hand-held objects from monocular RGB images by leveraging hand-object interaction as geometric guidance. Our method conditions a latent diffusion model on an…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Ayce Idil Aytekin , Helge Rhodin , Rishabh Dabral , Christian Theobalt