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相关论文: Cross-Scale Cost Aggregation for Stereo Matching

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Cost aggregation is a key component of stereo matching for high-quality depth estimation. Most methods use multi-scale processing to downsample cost volume for proper context information, but will cause loss of details when upsampling. In…

计算机视觉与模式识别 · 计算机科学 2020-06-08 Chengtang Yao , Yunde Jia , Huijun Di , Yuwei Wu , Lidong Yu

Deep neural networks have shown excellent performance for stereo matching. Many efforts focus on the feature extraction and similarity measurement of the matching cost computation step while less attention is paid on cost aggregation which…

计算机视觉与模式识别 · 计算机科学 2018-01-15 Lidong Yu , Yucheng Wang , Yuwei Wu , Yunde Jia

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…

计算机视觉与模式识别 · 计算机科学 2021-12-16 Seokju Cho , Sunghwan Hong , Sangryul Jeon , Yunsung Lee , Kwanghoon Sohn , Seungryong Kim

In this paper, we present a decomposition model for stereo matching to solve the problem of excessive growth in computational cost (time and memory cost) as the resolution increases. In order to reduce the huge cost of stereo matching at…

计算机视觉与模式识别 · 计算机科学 2021-04-16 Chengtang Yao , Yunde Jia , Huijun Di , Pengxiang Li , Yuwei Wu

Pairwise matching cost aggregation is a crucial step for modern learning-based Multi-view Stereo (MVS). Prior works adopt an early aggregation scheme, which adds up pairwise costs into an intermediate cost. However, we analyze that this…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Jiang Wu , Rui Li , Yu Zhu , Wenxun Zhao , Jinqiu Sun , Yanning Zhang

Establishing dense correspondences across semantically similar images is one of the challenging tasks due to the significant intra-class variations and background clutters. To solve these problems, numerous methods have been proposed,…

计算机视觉与模式识别 · 计算机科学 2022-04-20 Jiwon Kim , Youngjo Min , Mira Kim , Seungryong Kim

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…

计算机视觉与模式识别 · 计算机科学 2022-09-21 Sunghwan Hong , Seokju Cho , Seungryong Kim , Stephen Lin

On modern parallel architectures, the cost of synchronization among processors can often dominate the cost of floating-point computation. Several modifications of the existing methods have been proposed in order to keep the communication…

分布式、并行与集群计算 · 计算机科学 2019-12-10 Qinmeng Zou , Frederic Magoules

Despite the remarkable progress made by learning based stereo matching algorithms, one key challenge remains unsolved. Current state-of-the-art stereo models are mostly based on costly 3D convolutions, the cubic computational complexity and…

计算机视觉与模式识别 · 计算机科学 2020-04-22 Haofei Xu , Juyong Zhang

In this paper, we propose a novel binary-based cost computation and aggregation approach for stereo matching problem. The cost volume is constructed through bitwise operations on a series of binary strings. Then this approach is combined…

计算机视觉与模式识别 · 计算机科学 2014-02-11 Kang Zhang , Jiyang Li , Yijing Li , Weidong Hu , Lifeng Sun , Shiqiang Yang

We present a method for extracting depth information from a rectified image pair. Our approach focuses on the first stage of many stereo algorithms: the matching cost computation. We approach the problem by learning a similarity measure on…

计算机视觉与模式识别 · 计算机科学 2016-05-19 Jure Žbontar , Yann LeCun

We propose a new method for hierarchical clustering based on the optimisation of a cost function over trees of limited depth, and we derive a message--passing method that allows to solve it efficiently. The method and algorithm can be…

无序系统与神经网络 · 物理学 2015-05-14 M. Bailly-Bechet , S. Bradde , A. Braunstein , A. Flaxman , L. Foini , R. Zecchina

Algebraic multigrid (AMG) is an $\mathcal{O}(n)$ solution process for many large sparse linear systems. A hierarchy of progressively coarser grids is constructed that utilize complementary relaxation and interpolation operators. High-energy…

分布式、并行与集群计算 · 计算机科学 2015-12-16 Amanda Bienz , Robert D. Falgout William Gropp , Luke N. Olson , Jacob B. Schroder

Density-based cluster mining is known to serve a broad range of applications ranging from stock trade analysis to moving object monitoring. Although methods for efficient extraction of density-based clusters have been studied in the…

数据库 · 计算机科学 2011-11-01 Di Yang , Elke A. Rundensteiner , Matthew O. Ward

We study the problem of fitting an ultrametric distance to a dissimilarity graph in the context of hierarchical cluster analysis. Standard hierarchical clustering methods are specified procedurally, rather than in terms of the cost function…

机器学习 · 计算机科学 2021-02-03 Giovanni Chierchia , Benjamin Perret

Distant supervision assumes that any sentence containing the same entity pairs reflects identical relationships. Previous works of distantly supervised relation extraction (DSRE) task generally focus on sentence-level or bag-level…

计算与语言 · 计算机科学 2022-03-03 Dongyang Li , Taolin Zhang , Nan Hu , Chengyu Wang , Xiaofeng He

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…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Seokju Cho , Sunghwan Hong , Seungryong Kim

Over the years, a plethora of cost-sensitive methods have been proposed for learning on data when different types of misclassification errors incur different costs. Our contribution is a unifying framework that provides a comprehensive and…

机器学习 · 计算机科学 2020-07-16 George Petrides , Wouter Verbeke

Stereo matching is crucial for binocular stereo vision. Existing methods mainly focus on simple disparity map fusion to improve stereo matching, which require multiple dense or sparse disparity maps. In this paper, we propose a simple yet…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Wei Xue , Xiaojiang Peng

Merging has become a widespread way to cheaply combine individual models into a single model that inherits their capabilities and attains better performance. This popularity has spurred rapid development of many new merging methods, which…

机器学习 · 计算机科学 2024-09-30 Derek Tam , Yash Kant , Brian Lester , Igor Gilitschenski , Colin Raffel
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