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Related papers: Symmetry Discovery Beyond Affine Transformations

200 papers

We present a novel view of nonlinear manifold learning using derivative-free optimization techniques. Specifically, we propose an extension of the classical multi-dimensional scaling (MDS) method, where instead of performing gradient…

Embeddings are one of the fundamental building blocks for data analysis tasks. Embeddings are already essential tools for large language models and image analysis, and their use is being extended to many other research domains. The…

Anomaly detection is widely used in a broad range of domains from cybersecurity to manufacturing, finance, and so on. Deep learning based anomaly detection has recently drawn much attention because of its superior capability of recognizing…

Machine Learning · Computer Science 2023-05-23 Ronit Das , Tie Luo

The topological information of a network can be retrieved equivalently from its complement consisting of the same nodes but complementary edges. Hence the partition of a network into certain substructures based on given criteria should be…

Physics and Society · Physics 2009-08-07 Jiao Wang , C. -H. Lai

Sampling discrepancies between different manufacturers and models of lidar sensors result in inconsistent representations of objects. This leads to performance degradation when 3D detectors trained for one lidar are tested on other types of…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Darren Tsai , Julie Stephany Berrio , Mao Shan , Stewart Worrall , Eduardo Nebot

Our goal in this paper is to discover near duplicate patterns in large collections of artworks. This is harder than standard instance mining due to differences in the artistic media (oil, pastel, drawing, etc), and imperfections inherent in…

Computer Vision and Pattern Recognition · Computer Science 2019-03-11 Xi Shen , Alexei A. Efros , Mathieu Aubry

In this paper, we address the design of lightweight deep learning-based edge detection. The deep learning technology offers a significant improvement on the edge detection accuracy. However, typical neural network designs have very high…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Jan Kristanto Wibisono , Hsueh-Ming Hang

It is well-known that GANs are difficult to train, and several different techniques have been proposed in order to stabilize their training. In this paper, we propose a novel training method called manifold-matching, and a new GAN model…

"Wireframe" is a line segment based representation designed to well capture large-scale visual properties of regular, structural shaped man-made scenes surrounding us. Unlike the wireframes, conventional edges or line segments focus on all…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Naejin Kong , Kiwoong Park , Harshith Goka

Despite the great performance of deep learning models in many areas, they still make mistakes and underperform on certain subsets of data, i.e. error slices. Given a trained model, it is important to identify its semantically coherent error…

Machine Learning · Computer Science 2025-12-23 Han Yu , Hao Zou , Jiashuo Liu , Renzhe Xu , Yue He , Xingxuan Zhang , Peng Cui

Detecting the edges of objects within images is critical for quality image processing. We present an edge-detecting technique that uses morphological amoebas that adjust their shape based on variation in image contours. We evaluate the…

Computer Vision and Pattern Recognition · Computer Science 2011-08-23 Won Yeol Lee , Young Woo Kim , Se Yun Kim , Jae Young Lim , Dong Hoon Lim

Since edge detection is in the forefront of image processing for object detection, it is crucial to have a good understanding of edge detection algorithms. The reason for this is that edges form the outline of an object. An edge is the…

Computer Vision and Pattern Recognition · Computer Science 2013-11-22 Shubham Saini , Bhavesh Kasliwal , Shraey Bhatia

Defect detection aims to detect and localize regions out of the normal distribution.Previous approaches model normality and compare it with the input to identify defective regions, potentially limiting their generalizability.This paper…

Computer Vision and Pattern Recognition · Computer Science 2023-11-30 Jiang Lin , Yaping Yan

The main requisite for fine-grained recognition task is to focus on subtle discriminative details that make the subordinate classes different from each other. We note that existing methods implicitly address this requirement and leave it to…

Computer Vision and Pattern Recognition · Computer Science 2019-12-17 Guolei Sun , Hisham Cholakkal , Salman Khan , Fahad Shahbaz Khan , Ling Shao

The rapid advancement of generative models has led to a growing prevalence of highly realistic AI-generated images, posing significant challenges for digital forensics and content authentication. Conventional detection methods mainly rely…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Dabbrata Das , Mahshar Yahan , Md Tareq Zaman , Md Rishadul Bayesh

Detecting polygons defined by a set of line segments in a plane is an important step in analyzing vector drawings. This paper presents an approach combining several algorithms to detect basic polygons from arbitrary line segments. The…

Computational Geometry · Computer Science 2023-12-29 Alfredo Ferreira , Manuel J. Fonseca , Joaquim A. Jorge

With the rapid advancement of deep learning, the field of change detection (CD) in remote sensing imagery has achieved remarkable progress. Existing change detection methods primarily focus on achieving higher accuracy with increased…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Chenfeng Xu

We consider functional outlier detection from a geometric perspective, specifically: for functional data sets drawn from a functional manifold which is defined by the data's modes of variation in amplitude and phase. Based on this manifold,…

Machine Learning · Statistics 2021-09-15 Moritz Herrmann , Fabian Scheipl

Recent rapid advancement of generative models has significantly improved the fidelity and accessibility of AI-generated synthetic images. While enabling various innovative applications, the unprecedented realism of these synthetics makes…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Yawen Yang , Feng Li , Shuqi Kong , Yunfeng Diao , Xinjian Gao , Zenglin Shi , Meng Wang

Symmetry is omnipresent in nature and perceived by the visual system of many species, as it facilitates detecting ecologically important classes of objects in our environment. Symmetry perception requires abstraction of long-range spatial…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Shobhita Sundaram , Darius Sinha , Matthew Groth , Tomotake Sasaki , Xavier Boix