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We present an algorithm to estimate fast and accurate depth maps from light fields via a sparse set of depth edges and gradients. Our proposed approach is based around the idea that true depth edges are more sensitive than texture edges to…

计算机视觉与模式识别 · 计算机科学 2021-07-08 Numair Khan , Min H. Kim , James Tompkin

In this paper we propose an algorithm for the detection of edges in images that is based on topological asymptotic analysis. Motivated from the Mumford--Shah functional, we consider a variational functional that penalizes oscillations…

数值分析 · 数学 2013-06-12 E. Beretta , M. Grasmair , M. Muszkieta , O. Scherzer

In this article we suggest a fast multi-scale edge-detection scheme for medical ultrasound signals. The edge-detector is based on well-known properties of the continuous wavelet trans- form. To achieve both good localization of edges and…

计算机视觉与模式识别 · 计算机科学 2011-07-27 Preben Gråberg Nes

We present CT-Bound, a robust and fast boundary detection method for very noisy images using a hybrid Convolution and Transformer neural network. The proposed architecture decomposes boundary estimation into two tasks: local detection and…

计算机视觉与模式识别 · 计算机科学 2024-06-26 Wei Xu , Junjie Luo , Qi Guo

In this paper, we propose a new two-dimensional directional discrete wavelet transform that can decompose an image into 12 multiscale directional edge components. The proposed transform is designed in a fully discrete setting and thus is…

信号处理 · 电气工程与系统科学 2021-12-03 Kensuke Fujinoki , Keita Ashizawa

Recently, deep Convolutional Neural Networks (CNNs) can achieve human-level performance in edge detection with the rich and abstract edge representation capacities. However, the high performance of CNN based edge detection is achieved with…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Zhuo Su , Wenzhe Liu , Zitong Yu , Dewen Hu , Qing Liao , Qi Tian , Matti Pietikäinen , Li Liu

Edge detection has long been an important problem in the field of computer vision. Previous works have explored category-agnostic or category-aware edge detection. In this paper, we explore edge detection in the context of object instances.…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Xueyan Zou , Haotian Liu , Yong Jae Lee

Edges are a basic and fundamental feature in image processing, that are used directly or indirectly in huge amount of applications. Inspired by the expansion of image resolution and processing power dilated convolution techniques appeared.…

计算机视觉与模式识别 · 计算机科学 2021-11-17 Ciprian Orhei , Victor Bogdan , Cosmin Bonchis

This paper presents a graph bundling algorithm that agglomerates edges taking into account both spatial proximity as well as user-defined criteria in order to reveal patterns that were not perceivable with previous bundling techniques. Each…

图形学 · 计算机科学 2015-04-13 Daniel C. Moura

As deep learning technology continues to evolve, the images yielded by generative models are becoming more and more realistic, triggering people to question the authenticity of images. Existing generated image detection methods detect…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Xiuli Bi , Bo Liu , Fan Yang , Bin Xiao , Weisheng Li , Gao Huang , Pamela C. Cosman

We introduce a new spectral method for image segmentation that incorporates long range relationships for global appearance modeling. The approach combines two different graphs, one is a sparse graph that captures spatial relationships…

计算机视觉与模式识别 · 计算机科学 2022-10-10 Jeova F. S. Rocha Neto , Pedro F. Felzenszwalb

Today Bayesian networks are more used in many areas of decision support and image processing. In this way, our proposed approach uses Bayesian Network to modelize the segmented image quality. This quality is calculated on a set of…

计算机视觉与模式识别 · 计算机科学 2015-01-23 Mohamed Ali Mahjoub , Mohamed Mhiri

Complex networks have been widely used in science and technology because of their ability to represent several systems. One of these systems is found in Biochemistry, in which the synthesis of new nanoparticles is a hot topic. However, the…

Most of the current boundary detection systems rely exclusively on low-level features, such as color and texture. However, perception studies suggest that humans employ object-level reasoning when judging if a particular pixel is a…

计算机视觉与模式识别 · 计算机科学 2015-09-22 Gedas Bertasius , Jianbo Shi , Lorenzo Torresani

We present a novel technique for estimating disk parameters (the centre and the radius) from its 2D image. It is based on the maximal likelihood approach utilising both edge pixels coordinates and the image intensity gradients. We emphasise…

图像与视频处理 · 电气工程与系统科学 2020-09-03 Matwey V. Kornilov

Edge detection serves as a critical foundation for numerous computer vision applications, including object detection, semantic segmentation, and image editing, by extracting essential structural cues that define object boundaries and…

计算机视觉与模式识别 · 计算机科学 2025-08-19 Yuanbin Fu , Liang Li , Xiaojie Guo

In this paper, we present a multi-object 6D detection and tracking pipeline for potentially similar and non-textured objects. The combination of a convolutional neural network for object classification and rough pose estimation with a local…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Niklas Gard , Anna Hilsmann , Peter Eisert

We present a conceptually simple yet effective algorithm to detect wireframes in a given image. Compared to the previous methods which first predict an intermediate heat map and then extract straight lines with heuristic algorithms, our…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Yichao Zhou , Haozhi Qi , Yi Ma

Classification of rocks is one of the fundamental tasks in a geological study. The process requires a human expert to examine sampled thin section images under a microscope. In this study, we propose a method that uses microscope…

计算机视觉与模式识别 · 计算机科学 2021-06-24 S. Joseph , H. Ujir , I. Hipiny

A robust and accurate 3D detection system is an integral part of autonomous vehicles. Traditionally, a majority of 3D object detection algorithms focus on processing 3D point clouds using voxel grids or bird's eye view (BEV). Recent works,…

计算机视觉与模式识别 · 计算机科学 2020-09-18 Sumesh Thakur , Jiju Peethambaran