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3D object recognition accuracy can be improved by learning the multi-scale spatial features from 3D spatial geometric representations of objects such as point clouds, 3D models, surfaces, and RGB-D data. Current deep learning approaches…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Sambit Ghadai , Xian Lee , Aditya Balu , Soumik Sarkar , Adarsh Krishnamurthy

Data-driven fault detection has been regarded as a 3D image segmentation task. The models trained from synthetic data are difficult to generalize in some surveys. Recently, training 3D fault segmentation using sparse manual 2D slices is…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Yimin Dou , Kewen Li , Jianbing Zhu , Timing Li , Shaoquan Tan , Zongchao Huang

Face recognition has achieved great progress owing to the fast development of the deep neural network in the past a few years. As an important part of deep neural networks, a number of the loss functions have been proposed which…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Xin Wei , Hui Wang , Bryan Scotney , Huan Wan

In this paper, we introduce 3D-GMNet, a deep neural network for 3D object shape reconstruction from a single image. As the name suggests, 3D-GMNet recovers 3D shape as a Gaussian mixture. In contrast to voxels, point clouds, or meshes, a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Kohei Yamashita , Shohei Nobuhara , Ko Nishino

A signed distance function (SDF) as the 3D shape description is one of the most effective approaches to represent 3D geometry for rendering and reconstruction. Our work is inspired by the state-of-the-art method DeepSDF that learns and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Shun Yao , Fei Yang , Yongmei Cheng , Mikhail G. Mozerov

We propose a method for 3D object reconstruction and 6D-pose estimation from 2D images that uses knowledge about object shape as the primary key. In the proposed pipeline, recognition and labeling of objects in 2D images deliver 2D segment…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Marcell Wolnitza , Osman Kaya , Tomas Kulvicius , Florentin Wörgötter , Babette Dellen

In this paper, we introduce a novel framework for memory-efficient and privacy-preserving continual learning in 3D object classification. Unlike conventional memory-based approaches in continual learning that require storing numerous…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Hossein Resani , Behrooz Nasihatkon

Multimodal learning plays a pivotal role in advancing artificial intelligence systems by incorporating information from multiple modalities to build a more comprehensive representation. Despite its importance, current state-of-the-art…

Machine Learning · Computer Science 2025-09-30 Giordano Cicchetti , Eleonora Grassucci , Danilo Comminiello

Representing 3D shape in deep learning frameworks in an accurate, efficient and compact manner still remains an open challenge. Most existing work addresses this issue by employing voxel-based representations. While these approaches benefit…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Dominic Jack , Jhony K. Pontes , Sridha Sridharan , Clinton Fookes , Sareh Shirazi , Frederic Maire , Anders Eriksson

Deep learning has enabled remarkable improvements in grasp synthesis for previously unseen objects from partial object views. However, existing approaches lack the ability to explicitly reason about the full 3D geometry of the object when…

Robotics · Computer Science 2020-03-19 Mark Van der Merwe , Qingkai Lu , Balakumar Sundaralingam , Martin Matak , Tucker Hermans

Designing a robust affinity model is the key issue in multiple target tracking (MTT). This paper proposes a novel affinity model by learning feature representation and distance metric jointly in a unified deep architecture. Specifically, we…

Computer Vision and Pattern Recognition · Computer Science 2018-02-12 Jun Xiang , Guoshuai Zhang , Jianhua Hou , Nong Sang , Rui Huang

We propose FusionBERT, a novel multi-view visual fusion framework for image-3D multimodal retrieval. Existing image-3D representation learning methods predominantly focus on feature alignment of a single object image and its 3D model,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Wei Li , Yufan Ren , Hanqing Jiang , Jianhui Ding , Zhen Peng , Leman Feng , Yichun Shentu , Guoqiang Xu , Baigui Sun

Straight-forward conformation generation models, which generate 3-D structures directly from input molecular graphs, play an important role in various molecular tasks with machine learning, such as 3D-QSAR and virtual screening in drug…

Biomolecules · Quantitative Biology 2022-03-16 Shuwen Yang , Tianyu Wen , Ziyao Li , Guojie Song

With the widespread use of touch-screen devices, it is more and more convenient for people to draw sketches on screen. This results in the demand for automatically understanding the sketches. Thus, the sketch recognition task becomes more…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Lei Wang , Shihui Zhang , Huan He , Xiaoxiao Zhang , Yu Sang

Existing networks directly learn feature representations on 3D point clouds for shape analysis. We argue that 3D point clouds are highly redundant and hold irregular (permutation-invariant) structure, which makes it difficult to achieve…

Machine Learning · Computer Science 2020-07-21 Sameera Ramasinghe , Salman Khan , Nick Barnes , Stephen Gould

During the last years, many advances have been made in tasks like3D model retrieval, 3D model classification, and 3D model segmentation.The typical 3D representations such as point clouds, voxels, and poly-gon meshes are mostly suitable for…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Arniel Labrada , Benjamin Bustos , Ivan Sipiran

The success of deep learning methods led to significant breakthroughs in 3-D point cloud processing tasks with applications in remote sensing. Existing methods utilize convolutions that have some limitations, as they assume a uniform input…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Dimple A Shajahan , Mukund Varma T , Ramanathan Muthuganapathy

3D face reconstruction from a single 2D image is a very important topic in computer vision. However, the current reconstruction methods are usually non-sensitive to face identities and over-sensitive to facial poses, which may result in…

Computer Vision and Pattern Recognition · Computer Science 2019-05-17 Yao Luo , Xiaoguang Tu , Mei Xie

Deep neural networks trained using a softmax layer at the top and the cross-entropy loss are ubiquitous tools for image classification. Yet, this does not naturally enforce intra-class similarity nor inter-class margin of the learned deep…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 José Lezama , Qiang Qiu , Pablo Musé , Guillermo Sapiro

In the context of pose-invariant object recognition and retrieval, we demonstrate that it is possible to achieve significant improvements in performance if both the category-based and the object-identity-based embeddings are learned…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Rohan Sarkar , Avinash Kak