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This communication describes a representation of images as a set of edges characterized by their position and orientation. This representation allows the comparison of two images and the computation of their similarity. The first step in…

计算机视觉与模式识别 · 计算机科学 2007-05-23 Joel Le Roux , Philippe Chaurand , Mickael Urrutia

We introduce a phase imaging mechanism for scanning transmission electron microscopy that exploits the complementary intensity changes of transmitted disks at different scattering angles. For scanning transmission electron microscopy, this…

仪器与探测器 · 物理学 2023-07-06 Binbin Wang , David W. McComb

Many well-known and effective anomaly detection methods assume that a reasonable decision boundary has a hypersphere shape, which however is difficult to obtain in practice and is not sufficiently compact, especially when the data are in…

机器学习 · 计算机科学 2024-05-07 Yunhe Zhang , Yan Sun , Jinyu Cai , Jicong Fan

In the recent times, autoencoders, besides being used for compression, have been proven quite useful even for regenerating similar images or help in image denoising. They have also been explored for anomaly detection in a few cases.…

计算机视觉与模式识别 · 计算机科学 2018-04-03 Shruti Mittal , Dattaraj Rao

We propose a novel approach for monocular 3D object detection by leveraging local perspective effects of each object. While the global perspective effect shown as size and position variations has been exploited for monocular 3D detection…

计算机视觉与模式识别 · 计算机科学 2023-01-06 Minghan Zhu , Lingting Ge , Panqu Wang , Huei Peng

Topological photonics aims to utilize topological photonic bands and corresponding edge modes to implement robust light manipulation, which can be readily achieved in the linear regime of light-matter interaction. Importantly, unlike solid…

光学 · 物理学 2020-04-22 Zhihao Lan , Jian Wei You , Nicolae C. Panoiu

The goal of feature selection is to choose the optimal subset of features for a recognition task by evaluating the importance of each feature, thereby achieving effective dimensionality reduction. Currently, proposed feature selection…

机器学习 · 计算机科学 2024-02-27 Zhenxing Zhang , Jun Ge , Zheng Wei , Chunjie Zhou , Yilei Wang

Edge detection is among the most fundamental vision problems for its role in perceptual grouping and its wide applications. Recent advances in representation learning have led to considerable improvements in this area. Many state of the art…

计算机视觉与模式识别 · 计算机科学 2018-10-29 Zhiding Yu , Weiyang Liu , Yang Zou , Chen Feng , Srikumar Ramalingam , B. V. K. Vijaya Kumar , Jan Kautz

Learning-based edge detection has hereunto been strongly supervised with pixel-wise annotations which are tedious to obtain manually. We study the problem of self-training edge detection, leveraging the untapped wealth of large-scale…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Yunfan Ye , Renjiao Yi , Zhiping Cai , Kai Xu

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

Local structures of shadow boundaries as well as complex interactions of image regions remain largely unexploited by previous shadow detection approaches. In this paper, we present a novel learning-based framework for shadow region recovery…

计算机视觉与模式识别 · 计算机科学 2015-05-11 Li Shen , Teck Wee Chua , Karianto Leman

In this paper, we propose a novel edge and corner detection algorithm for an unorganized point cloud. Our edge detection method classifies a query point as an edge point by evaluating the distribution of local neighboring points around the…

机器人学 · 计算机科学 2021-04-22 Mohit Vohra , Ravi Prakash , Laxmidhar Behera

Object detection in aerial imagery presents a significant challenge due to large scale variations among objects. This paper proposes an evolutionary reinforcement learning agent, integrated within a coarse-to-fine object detection…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Jialu Zhang , Xiaoying Yang , Wentao He , Jianfeng Ren , Qian Zhang , Titian Zhao , Ruibin Bai , Xiangjian He , Jiang Liu

Incorporating boundaries of the imaging object as a priori information to imaging algorithms can significantly improve the performance of electromagnetic medical imaging systems. To avoid overly complicating the system by using different…

计算机视觉与模式识别 · 计算机科学 2022-03-14 A. Al-Saffar , A. Stancombe , A. Zamani , A. Abbosh

This paper presents a context-aware tracing strategy (CATS) for crisp edge detection with deep edge detectors, based on an observation that the localization ambiguity of deep edge detectors is mainly caused by the mixing phenomenon of…

计算机视觉与模式识别 · 计算机科学 2021-06-30 Linxi Huan , Nan Xue , Xianwei Zheng , Wei He , Jianya Gong , Gui-Song Xia

The performance of deep learning based edge detector has far exceeded that of humans, but the huge computational cost and complex training strategy hinder its further development and application. In this paper, we eliminate these…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Yachuan Li , Xavier Soria Pomab , Yongke Xi , Guanlin Li , Chaozhi Yang , Qian Xiao , Yun Bai , Zongmin LI

Spatially localized deformation components are very useful for shape analysis and synthesis in 3D geometry processing. Several methods have recently been developed, with an aim to extract intuitive and interpretable deformation components.…

图形学 · 计算机科学 2017-12-19 Qingyang Tan , Lin Gao , Yu-Kun Lai , Jie Yang , Shihong Xia

Melanoma detection is vital for early diagnosis and effective treatment. While deep learning models on dermoscopic images have shown promise, they require specialized equipment, limiting their use in broader clinical settings. This study…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Volodymyr Sydorskyi , Igor Krashenyi , Oleksii Yakubenko

A novel multi-resolution cluster detection (MCD) method is proposed to identify irregularly shaped clusters in space. Multi-scale test statistic on a single cell is derived based on likelihood ratio statistic for Bernoulli sequence, Poisson…

统计方法学 · 统计学 2012-05-11 Lingsong Zhang , Zhengyuan Zhu

The Histogram of Oriented Gradient is a widely used image feature, which describes local image directionality based on numerical differentiation. Due to its ill-posed nature, small noise may lead to large errors. Conventional HOG may fail…

图像与视频处理 · 电气工程与系统科学 2022-05-12 Jiening Zhu , Harini Veeraraghavan , Larry Norton , Joseph O. Deasy , Allen Tannenbaum