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This paper studies the problem of view synthesis with certain amount of rotations from a pair of images, what we called stereo unstructured magnification. While the multi-plane image representation is well suited for view synthesis with…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Qi Zhang , Xin Huang , Ying Feng , Xue Wang , Hongdong Li , Qing Wang

In this paper, we introduce a novel approach to fine-grained cross-view geo-localization. Our method aligns a warped ground image with a corresponding GPS-tagged satellite image covering the same area using homography estimation. We first…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Xiaolong Wang , Runsen Xu , Zuofan Cui , Zeyu Wan , Yu Zhang

This work introduces a novel method for surface normal estimation from rectified stereo image pairs, leveraging affine transformations derived from disparity values to achieve fast and accurate results. We demonstrate how the rectification…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Csongor Csanad Kariko , Muhammad Rafi Faisal , Levente Hajder

Characterizing the structural properties of neural networks is crucial yet poorly understood, and there are no well-established similarity measures between networks. In this work, we observe that neural networks can be represented as…

We propose ways to speed up the initial pose-graph generation for global Structure-from-Motion algorithms. To avoid forming tentative point correspondences by FLANN and geometric verification by RANSAC, which are the most time-consuming…

计算机视觉与模式识别 · 计算机科学 2020-11-30 Daniel Barath , Dmytro Mishkin , Ivan Eichhardt , Ilia Shipachev , Jiri Matas

Stereo dense image matching can be categorized to low-level feature based matching and deep feature based matching according to their matching cost metrics. Census has been proofed to be one of the most efficient low-level feature based…

计算机视觉与模式识别 · 计算机科学 2019-05-23 Bihe Chen , Rongjun Qin , Xu Huang , Shuang Song , Xiaohu Lu

Persistent homology is an effective method for extracting topological information, represented as persistent diagrams, of spatial structure data. Hence it is well-suited for the study of protein structures. Attempts to incorporate…

机器学习 · 计算机科学 2024-08-01 An Wu , Yu Pan , Fuqi Zhou , Jinghui Yan , Chuanlu Liu

Deep Convolutional Neural Networks (CNNs) are the state-of-the-art in image classification. Since CNN feed forward propagation involves highly regular parallel computation, it benefits from a significant speed-up when running on fine grain…

分布式、并行与集群计算 · 计算机科学 2017-12-13 Kamel Abdelouahab , Maxime Pelcat , Jocelyn Sérot , Cédric Bourrasset , François Berry , Jocelyn Serot

We propose a novel camera pose estimation or perspective-n-point (PnP) algorithm, based on the idea of consistency regions and half-space intersections. Our algorithm has linear time-complexity and a squared reconstruction error that…

计算机视觉与模式识别 · 计算机科学 2016-02-25 Alireza Ghasemi , Adam Scholefield , Martin Vetterli

The encoder-decoder framework is state-of-the-art for offline semantic image segmentation. Since the rise in autonomous systems, real-time computation is increasingly desirable. In this paper, we introduce fast segmentation convolutional…

计算机视觉与模式识别 · 计算机科学 2019-02-13 Rudra P K Poudel , Stephan Liwicki , Roberto Cipolla

Convolutional architectures have recently been shown to be competitive on many sequence modelling tasks when compared to the de-facto standard of recurrent neural networks (RNNs), while providing computational and modeling advantages due to…

机器学习 · 计算机科学 2019-02-19 Emre Aksan , Otmar Hilliges

In computed tomography (CT) reconstruction, scattering causes server quality degradation of the reconstructed CT images by introducing streaks and cupping artifacts which reduce the detectability of low contrast objects. Monte Carlo (MC)…

图像与视频处理 · 电气工程与系统科学 2022-02-01 Ammar Alsaffar , Steffen Kieß , Kaicong Sun , Sven Simon

We present a novel spatial hashing based data structure to facilitate 3D shape analysis using convolutional neural networks (CNNs). Our method well utilizes the sparse occupancy of 3D shape boundary and builds hierarchical hash tables for…

图形学 · 计算机科学 2019-04-19 Tianjia Shao , Yin Yang , Yanlin Weng , Qiming Hou , Kun Zhou

Traditional stereo algorithms have focused their efforts on reconstruction quality and have largely avoided prioritizing for run time performance. Robots, on the other hand, require quick maneuverability and effective computation to observe…

机器人学 · 计算机科学 2016-02-18 Sudeep Pillai , Srikumar Ramalingam , John J. Leonard

Synthetic transmit aperture (STA) ultrasound imaging is well known for ideal focusing in the full field of view. However, it suffers from low signal-to-noise ratio (SNR) and low frame rate, because each array element must be activated…

医学物理 · 物理学 2022-05-18 Jingke Zhang , Jing Liu , Wei Fan , Weibao Qiu , Jianwen Luo

A saliency guided hierarchical visual tracking (SHT) algorithm containing global and local search phases is proposed in this paper. In global search, a top-down saliency model is novelly developed to handle abrupt motion and appearance…

计算机视觉与模式识别 · 计算机科学 2018-12-24 Fangwen Tu , Shuzhi Sam Ge , Yazhe Tang , Chang Chieh Hang

Spatial transcriptomics (ST) provides essential spatial context by mapping gene expression within tissue, enabling detailed study of cellular heterogeneity and tissue organization. However, aligning ST data with histology images poses…

Persistent homology is a popular and powerful tool for capturing topological features of data. Advances in algorithms for computing persistent homology have reduced the computation time drastically -- as long as the algorithm does not…

计算几何 · 计算机科学 2013-10-03 Ulrich Bauer , Michael Kerber , Jan Reininghaus

We introduce the Normalized Matching Transformer (NMT), a deep learning approach for efficient and accurate sparse semantic keypoint matching between image pairs. NMT consists of a strong visual backbone, geometric feature refinement via…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Abtin Pourhadi , Paul Swoboda

This paper presents HITNet, a novel neural network architecture for real-time stereo matching. Contrary to many recent neural network approaches that operate on a full cost volume and rely on 3D convolutions, our approach does not…

计算机视觉与模式识别 · 计算机科学 2023-01-23 Vladimir Tankovich , Christian Häne , Yinda Zhang , Adarsh Kowdle , Sean Fanello , Sofien Bouaziz