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Graph Sampling provides an efficient yet inexpensive solution for analyzing large graphs. While extracting small representative subgraphs from large graphs, the challenge is to capture the properties of the original graph. Several sampling…

数据结构与算法 · 计算机科学 2019-10-21 Muhammad Irfan Yousuf , Raheel Anwar

In this paper, we propose novel edge and corner detection algorithms for unorganized point clouds. Our edge detection method evaluates symmetry in a local neighborhood and uses an adaptive density based threshold to differentiate 3D edge…

计算机视觉与模式识别 · 计算机科学 2018-09-28 Syeda Mariam Ahmed , Yan Zhi Tan , Chee Meng Chew , Abdullah Al Mamun , Fook Seng Wong

Edge points on 3D point clouds can clearly convey 3D geometry and surface characteristics, therefore, edge detection is widely used in many vision applications with high industrial and commercial demands. However, the fine-grained edge…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Yifei Xie , Zhikun Tu , Tong Yang , Yuhe Zhang , Xinyu Zhou

Many interpolation methods have been developed for high visual quality, but fail for inability to preserve image structures. Edges carry heavy structural information for detection, determination and classification. Edge-adaptive…

计算机视觉与模式识别 · 计算机科学 2015-03-13 Shaode Yu , Qingsong Zhu , Shibin Wu , Yaoqin Xie

We present a novel local-global feature fusion framework for body-weight exercise recognition with floor-based dynamic pressure maps. One step further from the existing studies using deep neural networks mainly focusing on global feature…

计算机视觉与模式识别 · 计算机科学 2023-09-15 Davinder Pal Singh , Lala Shakti Swarup Ray , Bo Zhou , Sungho Suh , Paul Lukowicz

We present a method for learning "spectrally descriptive" edge weights for graphs. We generalize a previously known distance measure on graphs (Graph Diffusion Distance), thereby allowing it to be tuned to minimize an arbitrary loss…

机器学习 · 计算机科学 2021-07-01 Cory Braker Scott , Eric Mjolsness , Diane Oyen , Chie Kodera , David Bouchez , Magalie Uyttewaal

Extracting high-level structural information from 3D point clouds is challenging but essential for tasks like urban planning or autonomous driving requiring an advanced understanding of the scene at hand. Existing approaches are still not…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Lukas Bode , Michael Weinmann , Reinhard Klein

In this paper, we present a telegraph diffusion model with variable exponents for image despeckling. Moving beyond the traditional assumption of a constant exponent in the telegraph diffusion framework, we explore three distinct variable…

偏微分方程分析 · 数学 2024-11-14 Sudeb Majee , Åke Brännström , Niklas L. P. Lundström

A novel method for segmenting bright objects from dark background for grayscale image is proposed. The concept of this method can be stated simply as: to pick out the local-thinnest bands on the grayscale grade-map. It turns out to be a…

计算机视觉与模式识别 · 计算机科学 2013-05-23 Bo Xiao , Yuefeng Jing , Yonghong Guan

The generalization performance of AI-generated image detection remains a critical challenge. Although most existing methods perform well in detecting images from generative models included in the training set, their accuracy drops…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Shengpeng Xiao , Yuanfang Guo , Heqi Peng , Zeming Liu , Liang Yang , Yunhong Wang

We introduce an edge detection and recovery framework based on open active contour models (snakelets). This is motivated by the noisy or broken edges output by standard edge detection algorithms, like Canny. The idea is to utilize the local…

计算机视觉与模式识别 · 计算机科学 2016-09-13 Muhammet Bastan , S. Saqib Bukhari , Thomas M. Breuel

We introduce a novel approach for image edge detection based on pseudo-Boolean polynomials for image patches. We show that patches covering edge regions in the image result in pseudo-Boolean polynomials with higher degrees compared to…

计算机视觉与模式识别 · 计算机科学 2023-08-31 Tendai Mapungwana Chikake , Boris Goldengorin

Edge detection is crucial in medical image processing, enabling precise extraction of structural information to support lesion identification and image analysis. Traditional edge detection models typically rely on complex Convolutional…

计算机视觉与模式识别 · 计算机科学 2024-08-09 Fuzhang Li , Chuan Lin

As a fundamental building block in computer vision, edges can be categorised into four types according to the discontinuity in surface-Reflectance, Illumination, surface-Normal or Depth. While great progress has been made in detecting…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Mengyang Pu , Yaping Huang , Qingji Guan , Haibin Ling

Fabricating experimental pictures in research work is a serious academic misconduct, which should better be detected in the reviewing process. However, due to large number of submissions, the detection whether a picture is fabricated or…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Binrui Shen , Qiang Niu , Shengxin Zhu

We present a novel method for image anomaly detection, where algorithms that use samples drawn from some distribution of "normal" data, aim to detect out-of-distribution (abnormal) samples. Our approach includes a combination of encoder and…

图像与视频处理 · 电气工程与系统科学 2020-03-02 Nina Tuluptceva , Bart Bakker , Irina Fedulova , Anton Konushin

Deep convolutional neural networks have recently achieved great success on image aesthetics assessment task. In this paper, we propose an efficient method which takes the global, local and scene-aware information of images into…

计算机视觉与模式识别 · 计算机科学 2019-02-25 Xin Fu , Jia Yan , Cien Fan

One way of characterizing the topological and structural properties of vertices and edges in a graph is by using structural similarity measures. Measures like Cosine, Jaccard and Dice compute the similarities restricted to the immediate…

社会与信息网络 · 计算机科学 2018-05-04 Eduar Castrillo , Elizabeth León , Jonatan Gómez

This paper introduces a Bayesian image segmentation algorithm based on finite mixtures. An EM algorithm is developed to estimate parameters of the Gaussian mixtures. The finite mixture is a flexible and powerful probabilistic modeling tool.…

计算机视觉与模式识别 · 计算机科学 2012-04-10 Mohamed Ali Mahjoub , karim kalti

This review presents various image segmentation methods using complex networks. Image segmentation is one of the important steps in image analysis as it helps analyze and understand complex images. At first, it has been tried to classify…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Amin Rezaei , Fatemeh Asadi