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Quantification of intra-retinal boundaries in optical coherence tomography (OCT) is a crucial task for studying and diagnosing neurological and ocular diseases. Since manual segmentation of layers is usually a time consuming task and relay…

计算机视觉与模式识别 · 计算机科学 2015-02-17 Mahdi Salarian

This research proposes a novel adjustable algorithm for reconstructing 3D body shapes from front and side silhouettes. Most recent silhouette-based approaches use a deep neural network trained by silhouettes and key points to estimate the…

计算机视觉与模式识别 · 计算机科学 2023-01-03 Aref Hemati , Azam Bastanfard

Algorithms are given for determining $L_\infty$ isotonic regression of weighted data. For a linear order, grid in multidimensional space, or tree, of $n$ vertices, optimal algorithms are given, taking $\Theta(n)$ time. These improve upon…

数据结构与算法 · 计算机科学 2017-06-26 Quentin F. Stout

Decentralized optimization with orthogonality constraints is found widely in scientific computing and data science. Since the orthogonality constraints are nonconvex, it is quite challenging to design efficient algorithms. Existing…

最优化与控制 · 数学 2024-01-09 Lei Wang , Xin Liu

Given an instance of the preferential attachment graph $G_n=([n],E_n)$, we would like to find vertex 1, using only 'local' information about the graph; that is, by exploring the neighborhoods of small sets of vertices. Borgs et. al gave an…

组合数学 · 数学 2016-05-20 Alan Frieze , Wesley Pegden

Image stitching is typically decomposed into three phases: registration, which aligns the source images with a common target image; seam finding, which determines for each target pixel the source image it should come from; and blending,…

计算机视觉与模式识别 · 计算机科学 2020-11-25 Charles Herrmann , Chen Wang , Richard Strong Bowen , Emil Keyder , Ramin Zabih

A dynamic occupancy grid map (DOGMa) allows a fast, robust, and complete environment representation for automated vehicles. Dynamic objects in a DOGMa, however, are commonly represented as independent cells while modeled objects with shape…

计算机视觉与模式识别 · 计算机科学 2018-04-12 Daniel Stumper , Fabian Gies , Stefan Hoermann , Klaus Dietmayer

In the field of data-driven 3D shape analysis and generation, the estimation of global topological features from localized representations such as point clouds, voxels, and neural implicit fields is a longstanding challenge. This paper…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Yihao Luo

The minimum height of vertex and edge partition trees are well-studied graph parameters known as, for instance, vertex and edge ranking number. While they are NP-hard to determine in general, linear-time algorithms exist for trees.…

数据结构与算法 · 计算机科学 2021-05-26 Svein Høgemo , Benjamin Bergougnoux , Ulrik Brandes , Christophe Paul , Jan Arne Telle

Optical Coherence Tomography Angiography (OCTA) is a crucial imaging technique for visualizing retinal vasculature and diagnosing eye diseases such as diabetic retinopathy and glaucoma. However, precise segmentation of OCTA vasculature…

图像与视频处理 · 电气工程与系统科学 2025-01-03 Shun Zou , Zhuo Zhang , Guangwei Gao

Structure information is ubiquitous in natural scene images and it plays an important role in scene representation. In this paper, third order structure statistics (TOSS) and fourth order structure statistics (FOSS) are exploited to encode…

计算机视觉与模式识别 · 计算机科学 2014-10-16 Wenya Zhu , Xiankai Lu , Tao Xu , Ziyi Zhao

Finding and identifying scatteredly-distributed, small, and critically important objects in 3D oncology images is very challenging. We focus on the detection and segmentation of oncology-significant (or suspicious cancer metastasized) lymph…

计算机视觉与模式识别 · 计算机科学 2020-05-29 Zhuotun Zhu , Ke Yan , Dakai Jin , Jinzheng Cai , Tsung-Ying Ho , Adam P Harrison , Dazhou Guo , Chun-Hung Chao , Xianghua Ye , Jing Xiao , Alan Yuille , Le Lu

In the framework of real Hilbert spaces we study continuous in time dynamics as well as numerical algorithms for the problem of approaching the set of zeros of a single-valued monotone and continuous operator $V$. The starting poin is a…

最优化与控制 · 数学 2024-02-23 Radu Ioan Bot , Ernö Robert Csetnek , Dang-Khoa Nguyen

Out-of-Distribution(OOD) detection, a fundamental machine learning task aimed at identifying abnormal samples, traditionally requires model retraining for different inlier distributions. While recent research demonstrates the applicability…

机器学习 · 计算机科学 2025-02-25 Hongzhe Cheng , Tianyou Zheng , Tianyi Zhang , Matthew Johnson-Roberson , Weiming Zhi

Face recognition has been studied extensively for more than 20 years now. Since the beginning of 90s the subject has became a major issue. This technology is used in many important real-world applications, such as video surveillance, smart…

计算机视觉与模式识别 · 计算机科学 2011-07-15 Rami Cohen

The novel STEVE (i.e., Space-Time-Enclosing Volume Extraction) algorithm is described here for the very first time. It generates iso-valued hypersurfaces that may be implicitly contained in four-dimensional (4D) data sets, such as temporal…

计算几何 · 计算机科学 2016-01-27 B. R. Schlei

Understanding the nature of human sketches is challenging because of the wide variation in how they are created. Recognizing complex structural patterns improves both the accuracy in recognizing sketches and the fidelity of the generated…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Giulio Federico , Giuseppe Amato , Fabio Carrara , Claudio Gennaro , Marco Di Benedetto

We study the problem of moving a vertex in an unstructured mesh of triangular, quadrilateral, or tetrahedral elements to optimize the shapes of adjacent elements. We show that many such problems can be solved in linear time using…

计算几何 · 计算机科学 2010-01-21 Nina Amenta , Marshall Bern , David Eppstein

A high order finite difference method is proposed for unstructured meshes to simulate compressible inviscid/viscous flows with/without discontinuities. In this method, based on the strong form equation, the divergence of the flux on each…

数值分析 · 数学 2021-09-08 Zeyuan Zhou , Mei-Yuan Zhen , Kun Qu , Jin-Sheng Cai

Lidar datasets are becoming more and more common. They are appreciated for their precise 3D nature, and have a wide range of applications, such as surface reconstruction, object detection, visualisation, etc. For all this applications,…

计算机视觉与模式识别 · 计算机科学 2018-01-17 Remi Cura , Julien Perret , Nicolas Paparoditis