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Deep neural networks have shown excellent performance in stereo matching task. Recently CNN-based methods have shown that stereo matching can be formulated as a supervised learning task. However, less attention is paid on the fusion of…

Computer Vision and Pattern Recognition · Computer Science 2019-06-26 Li Zhang , Quanhong Wang , Haihua Lu , Yong Zhao

We present a real-time, non-learning depth estimation method that fuses Light Detection and Ranging (LiDAR) data with stereo camera input. Our approach comprises three key techniques: Semi-Global Matching (SGM) stereo with Discrete…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Yasuhiro Yao , Ryoichi Ishikawa , Takeshi Oishi

Deploying depth estimation networks in the real world requires high-level robustness against various adverse conditions to ensure safe and reliable autonomy. For this purpose, many autonomous vehicles employ multi-modal sensor systems,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Ukcheol Shin , Kyunghyun Lee , Jean Oh

Multi-frame depth estimation improves over single-frame approaches by also leveraging geometric relationships between images via feature matching, in addition to learning appearance-based features. In this paper we revisit feature matching…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Vitor Guizilini , Rares Ambrus , Dian Chen , Sergey Zakharov , Adrien Gaidon

Feature matching plays a fundamental role in many computer vision tasks, yet existing methods heavily rely on scarce and clean multi-view image collections, which constrains their generalization to diverse and challenging scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Yingping Liang , Yutao Hu , Wenqi Shao , Ying Fu

Applications in materials and biological imaging are limited by the ability to collect high-resolution data over large areas in practical amounts of time. One solution to this problem is to collect low-resolution data and interpolate to…

Image and Video Processing · Electrical Eng. & Systems 2024-11-18 Emma J Reid , Lawrence F Drummy , Charles A Bouman , Gregery T Buzzard

We present a novel method for efficiently producing semi-dense matches across images. Previous detector-free matcher LoFTR has shown remarkable matching capability in handling large-viewpoint change and texture-poor scenarios but suffers…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Yifan Wang , Xingyi He , Sida Peng , Dongli Tan , Xiaowei Zhou

Multi-frame methods improve monocular depth estimation over single-frame approaches by aggregating spatial-temporal information via feature matching. However, the spatial-temporal feature leads to accuracy degradation in dynamic scenes. To…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Jiquan Zhong , Xiaolin Huang , Xiao Yu

Robust parameter estimation is a crucial task in several 3D computer vision pipelines such as Structure from Motion (SfM). State-of-the-art algorithms for robust estimation, however, still suffer from difficulties in converging to…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Huu Le , Christopher Zach

Disparity by Block Matching stereo is usually used in applications with limited computational power in order to get depth estimates. However, the research on simple stereo methods has been lesser than the energy based counterparts which…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Vinay Kaushik , Brejesh Lall

Stereo matching is the key step in estimating depth from two or more images. Recently, some tree-based non-local stereo matching methods have been proposed, which achieved state-of-the-art performance. The algorithms employed some tree…

Computer Vision and Pattern Recognition · Computer Science 2015-09-29 Xuan Luo , Xuejiao Bai , Shuo Li , Hongtao Lu , Sei-ichiro Kamata

Feature matching between image pairs is a fundamental problem in computer vision that drives many applications, such as SLAM. Recently, semi-dense matching approaches have achieved substantial performance enhancements and established a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Xiaolong Wang , Lei Yu , Yingying Zhang , Jiangwei Lao , Lixiang Ru , Liheng Zhong , Jingdong Chen , Yu Zhang , Ming Yang

Multi-modal methods based on camera and LiDAR sensors have garnered significant attention in the field of 3D detection. However, many prevalent works focus on single or partial stage fusion, leading to insufficient feature extraction and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Zhiwei Ning , Zhaojiang Liu , Xuanang Gao , Yifan Zuo , Jie Yang , Yuming Fang , Wei Liu

Few-Shot Segmentation (FSS) aims to segment the novel class images with a few annotated samples. In this paper, we propose a dense affinity matching (DAM) framework to exploit the support-query interaction by densely capturing both the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Hao Chen , Yonghan Dong , Zheming Lu , Yunlong Yu , Yingming Li , Jungong Han , Zhongfei Zhang

Diffusion model (DM)-based channel estimation, which generates channel samples via a posteriori sampling stepwise with denoising process, has shown potential in high-precision channel state information (CSI) acquisition. However, slow…

Machine Learning · Computer Science 2025-11-17 Wenkai Liu , Nan Ma , Jianqiao Chen , Xiaoxuan Qi , Yuhang Ma

Detecting objects and estimating their 6D poses is essential for automated systems to interact safely with the environment. Most 6D pose estimators, however, rely on a single camera frame and suffer from occlusions and ambiguities due to…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Fabian Duffhauss , Sebastian Koch , Hanna Ziesche , Ngo Anh Vien , Gerhard Neumann

Efficient real-time disparity estimation is critical for the application of stereo vision systems in various areas. Recently, stereo network based on coarse-to-fine method has largely relieved the memory constraints and speed limitations of…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 He Dai , Xuchong Zhang , Yongli Zhao , Hongbin Sun

Multi-view stereo depth estimation based on cost volume usually works better than self-supervised monocular depth estimation except for moving objects and low-textured surfaces. So in this paper, we propose a multi-frame depth estimation…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Zhuofei Huang , Jianlin Liu , Shang Xu , Ying Chen , Yong Liu

Modern neural network-based algorithms are able to produce highly accurate depth estimates from stereo image pairs, nearly matching the reliability of measurements from more expensive depth sensors. However, this accuracy comes with a…

Computer Vision and Pattern Recognition · Computer Science 2019-03-13 Kyle Yee , Ayan Chakrabarti

We introduce Multi-level feature Fusion-based Periodicity Analysis Model (MF-PAM), a novel deep learning-based pitch estimation model that accurately estimates pitch trajectory in noisy and reverberant acoustic environments. Our model…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-11 Woo-Jin Chung , Doyeon Kim , Soo-Whan Chung , Hong-Goo Kang