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We propose an efficient multi-view stereo (MVS) network for infering depth value from multiple RGB images. Recent studies have shown that mapping the geometric relationship in real space to neural network is an essential topic of the MVS…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Zihang Wan

Recent deep multi-view stereo (MVS) methods have widely incorporated transformers into cascade network for high-resolution depth estimation, achieving impressive results. However, existing transformer-based methods are constrained by their…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Sicheng Wang , Hao Jiang , Lei Xiang

In this paper, we present a novel recurrent multi-view stereo network based on long short-term memory (LSTM) with adaptive aggregation, namely AA-RMVSNet. We firstly introduce an intra-view aggregation module to adaptively extract image…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Zizhuang Wei , Qingtian Zhu , Chen Min , Yisong Chen , Guoping Wang

Deep learning has recently demonstrated its excellent performance for multi-view stereo (MVS). However, one major limitation of current learned MVS approaches is the scalability: the memory-consuming cost volume regularization makes the…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Yao Yao , Zixin Luo , Shiwei Li , Tianwei Shen , Tian Fang , Long Quan

We propose a novel cost aggregation network, called Cost Aggregation Transformers (CATs), to find dense correspondences between semantically similar images with additional challenges posed by large intra-class appearance and geometric…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Seokju Cho , Sunghwan Hong , Sangryul Jeon , Yunsung Lee , Kwanghoon Sohn , Seungryong Kim

Recently, Transformers were shown to enhance the performance of multi-view stereo by enabling long-range feature interaction. In this work, we propose Window-based Transformers (WT) for local feature matching and global feature aggregation…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Jinli Liao , Yikang Ding , Yoli Shavit , Dihe Huang , Shihao Ren , Jia Guo , Wensen Feng , Kai Zhang

This paper proposes a network, referred to as MVSTR, for Multi-View Stereo (MVS). It is built upon Transformer and is capable of extracting dense features with global context and 3D consistency, which are crucial to achieving reliable…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Jie Zhu , Bo Peng , Wanqing Li , Haifeng Shen , Zhe Zhang , Jianjun Lei

Cost aggregation is a highly important process in image matching tasks, which aims to disambiguate the noisy matching scores. Existing methods generally tackle this by hand-crafted or CNN-based methods, which either lack robustness to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Seokju Cho , Sunghwan Hong , Seungryong Kim

Recent advancements in learning-based Multi-View Stereo (MVS) methods have prominently featured transformer-based models with attention mechanisms. However, existing approaches have not thoroughly investigated the profound influence of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Chenjie Cao , Xinlin Ren , Yanwei Fu

This paper presents a learning-based method for multi-view depth estimation from posed images. Our core idea is a "learning-to-optimize" paradigm that iteratively indexes a plane-sweeping cost volume and regresses the depth map via a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Changjiang Cai , Pan Ji , Qingan Yan , Yi Xu

We introduce a novel cost aggregation network, dubbed Volumetric Aggregation with Transformers (VAT), to tackle the few-shot segmentation task by using both convolutions and transformers to efficiently handle high dimensional correlation…

Computer Vision and Pattern Recognition · Computer Science 2021-12-23 Sunghwan Hong , Seokju Cho , Jisu Nam , Seungryong Kim

We present an efficient multi-view stereo (MVS) network for 3D reconstruction from multiview images. While previous learning based reconstruction approaches performed quite well, most of them estimate depth maps at a fixed resolution using…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Anzhu Yu , Wenyue Guo , Bing Liu , Xin Chen , Xin Wang , Xuefeng Cao , Bingchuan Jiang

Deep CNN-based methods have so far achieved the state of the art results in multi-view 3D object reconstruction. Despite the considerable progress, the two core modules of these methods - multi-view feature extraction and fusion, are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Dan Wang , Xinrui Cui , Xun Chen , Zhengxia Zou , Tianyang Shi , Septimiu Salcudean , Z. Jane Wang , Rabab Ward

This paper presents a novel cost aggregation network, called Volumetric Aggregation with Transformers (VAT), for few-shot segmentation. The use of transformers can benefit correlation map aggregation through self-attention over a global…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Sunghwan Hong , Seokju Cho , Jisu Nam , Stephen Lin , Seungryong Kim

Deep learning has shown to be effective for depth inference in multi-view stereo (MVS). However, the scalability and accuracy still remain an open problem in this domain. This can be attributed to the memory-consuming cost volume…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Qingshan Xu , Wenbing Tao

Learning-based multi-view stereo (MVS) has by far centered around 3D convolution on cost volumes. Due to the high computation and memory consumption of 3D CNN, the resolution of output depth is often considerably limited. Different from…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Junhua Xi , Yifei Shi , Yijie Wang , Yulan Guo , Kai Xu

We present a novel architecture for dense correspondence. The current state-of-the-art are Transformer-based approaches that focus on either feature descriptors or cost volume aggregation. However, they generally aggregate one or the other…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Sunghwan Hong , Seokju Cho , Seungryong Kim , Stephen Lin

Learning-based Multi-View Stereo (MVS) methods warp source images into the reference camera frustum to form 3D volumes, which are fused as a cost volume to be regularized by subsequent networks. The fusing step plays a vital role in…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Xiaofeng Wang , Zheng Zhu , Fangbo Qin , Yun Ye , Guan Huang , Xu Chi , Yijia He , Xingang Wang

This paper introduces a Transformer-based integrative feature and cost aggregation network designed for dense matching tasks. In the context of dense matching, many works benefit from one of two forms of aggregation: feature aggregation,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Sunghwan Hong , Seokju Cho , Seungryong Kim , Stephen Lin

Magnetic resonance imaging (MRI) can present multi-contrast images of the same anatomical structures, enabling multi-contrast super-resolution (SR) techniques. Compared with SR reconstruction using a single-contrast, multi-contrast SR…

Image and Video Processing · Electrical Eng. & Systems 2022-03-29 Guangyuan Li , Jun Lv , Yapeng Tian , Qi Dou , Chengyan Wang , Chenliang Xu , Jing Qin
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