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Understanding 3D environments semantically is pivotal in autonomous driving applications where multiple computer vision tasks are involved. Multi-task models provide different types of outputs for a given scene, yielding a more holistic…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Juan Lagos , Esa Rahtu

Graduated optimization is a global optimization technique that is used to minimize a multimodal nonconvex function by smoothing the objective function with noise and gradually refining the solution. This paper experimentally evaluates the…

Machine Learning · Computer Science 2024-12-17 Naoki Sato , Hideaki Iiduka

Recently, stereo vision based on lightweight RGBD cameras has been widely used in various fields. However, limited by the imaging principles, the commonly used RGB-D cameras based on TOF, structured light, or binocular vision acquire some…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Dongyue Chen , Tingxuan Huang , Zhimin Song , Shizhuo Deng , Tong Jia

Deep Convolutional Neural Networks (DCNN) have been proven to be effective for various computer vision problems. In this work, we demonstrate its effectiveness on a continuous object orientation estimation task, which requires prediction of…

Computer Vision and Pattern Recognition · Computer Science 2017-02-07 Kota Hara , Raviteja Vemulapalli , Rama Chellappa

Monocular depth estimation is an ongoing challenge in computer vision. Recent progress with Transformer models has demonstrated notable advantages over conventional CNNs in this area. However, there's still a gap in understanding how these…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Jiawei Yao , Tong Wu , Xiaofeng Zhang

Depth completion is a critical task for handling depth images with missing pixels, which can negatively impact further applications. Recent approaches have utilized Convolutional Neural Networks (CNNs) to reconstruct depth images with the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Tingxuan Huang , Jiacheng Miao , Shizhuo Deng , Tong , Dongyue Chen

Exploiting internal spatial geometric constraints of sparse LiDARs is beneficial to depth completion, however, has been not explored well. This paper proposes an efficient method to learn geometry-aware embedding, which encodes the local…

Computer Vision and Pattern Recognition · Computer Science 2022-06-02 Wenchao Du , Hu Chen , Hongyu Yang , Yi Zhang

Omnidirectional image (ODI) data is captured with a 360x180 field-of-view, which is much wider than the pinhole cameras and contains richer spatial information than the conventional planar images. Accordingly, omnidirectional vision has…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Hao Ai , Zidong Cao , Jinjing Zhu , Haotian Bai , Yucheng Chen , Lin Wang

Point cloud completion aims to reconstruct complete 3D shapes from partial 3D point clouds. With advancements in deep learning techniques, various methods for point cloud completion have been developed. Despite achieving encouraging…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Qiuxia Wu , Haiyang Huang , Kunming Su , Zhiyong Wang , Kun Hu

In this work, we propose a novel deep online correction (DOC) framework for monocular visual odometry. The whole pipeline has two stages: First, depth maps and initial poses are obtained from convolutional neural networks (CNNs) trained in…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Jiaxin Zhang , Wei Sui , Xinggang Wang , Wenming Meng , Hongmei Zhu , Qian Zhang

We propose a novel second-order optimization framework for training the emerging deep continuous-time models, specifically the Neural Ordinary Differential Equations (Neural ODEs). Since their training already involves expensive gradient…

Machine Learning · Computer Science 2021-11-09 Guan-Horng Liu , Tianrong Chen , Evangelos A. Theodorou

Reconstructing magnetic resonance (MR) images from undersampled data is a challenging problem due to various artifacts introduced by the under-sampling operation. Recent deep learning-based methods for MR image reconstruction usually…

Image and Video Processing · Electrical Eng. & Systems 2021-06-28 Pengfei Guo , Jeya Maria Jose Valanarasu , Puyang Wang , Jinyuan Zhou , Shanshan Jiang , Vishal M. Patel

Image completion is widely used in photo restoration and editing applications, e.g. for object removal. Recently, there has been a surge of research on generating diverse completions for missing regions. However, existing methods require…

Computer Vision and Pattern Recognition · Computer Science 2022-12-21 Noa Alkobi , Tamar Rott Shaham , Tomer Michaeli

Depth prediction is a critical problem in robotics applications especially autonomous driving. Generally, depth prediction based on binocular stereo matching and fusion of monocular image and laser point cloud are two mainstream methods.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Guancheng Chen , Junli Lin , Huabiao Qin

In this paper, we introduce a novel approach that harnesses both 2D and 3D attentions to enable highly accurate depth completion without requiring iterative spatial propagations. Specifically, we first enhance a baseline convolutional depth…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yunxiao Shi , Manish Kumar Singh , Hong Cai , Fatih Porikli

3D Semantic Scene Completion (SSC) can provide dense geometric and semantic scene representations, which can be applied in the field of autonomous driving and robotic systems. It is challenging to estimate the complete geometry and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Ruihang Miao , Weizhou Liu , Mingrui Chen , Zheng Gong , Weixin Xu , Chen Hu , Shuchang Zhou

Deep neural networks achieve state-of-the-art and sometimes super-human performance across various domains. However, when learning tasks sequentially, the networks easily forget the knowledge of previous tasks, known as "catastrophic…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Shixiang Tang , Dapeng Chen , Jinguo Zhu , Shijie Yu , Wanli Ouyang

There has been a recent surge of interest in learning to perceive depth from monocular videos in an unsupervised fashion. A key challenge in this field is achieving robust and accurate depth estimation in challenging scenarios, particularly…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Mengtan Zhang , Yi Feng , Qijun Chen , Rui Fan

Depth estimation is a challenging task of 3D reconstruction to enhance the accuracy sensing of environment awareness. This work brings a new solution with a set of improvements, which increase the quantitative and qualitative understanding…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Armin Masoumian , Hatem A. Rashwan , Saddam Abdulwahab , Julian Cristiano , Domenec Puig

Depth-guided 3D reconstruction has gained popularity as a fast alternative to optimization-heavy approaches, yet existing methods still suffer from scale drift, multi-view inconsistencies, and the need for substantial refinement to achieve…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Kang Han , Wei Xiang , Lu Yu , Mathew Wyatt , Gaowen Liu , Ramana Rao Kompella