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Place recognition is a key module in robotic navigation. The existing line of studies mostly focuses on visual place recognition to recognize previously visited places solely based on their appearance. In this paper, we address structural…

Robotics · Computer Science 2021-09-29 Giseop Kim , Sunwook Choi , Ayoung Kim

We propose a novel probabilistic method for detection of objects in noisy images. The method uses results from percolation and random graph theories. We present an algorithm that allows to detect objects of unknown shapes in the presence of…

Statistics Theory · Mathematics 2011-02-24 Mikhail A. Langovoy , Olaf Wittich

Object detection in astronomical images, generically referred to as source finding, is often performed before the object characterisation stage in astrophysical processing work flows. In radio astronomy, source finding has historically been…

Instrumentation and Methods for Astrophysics · Physics 2019-01-16 Luis Lucas , Tim Staley , Anna Scaife

Artificial Intelligence systems cannot yet match human abilities to apply knowledge to situations that vary from what they have been programmed for, or trained for. In visual object recognition methods of inference exploiting top-down…

Artificial Intelligence · Computer Science 2022-05-18 Frank Guerin

This paper proposes a method for automatically monitoring and analyzing the evolution of complex geographic objects. The objects are modeled as a spatiotemporal graph, which separates filiation relations, spatial relations, and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Zouhayra Ayadi , Wadii Boulila , Imed Riadh Farah

Service robots are expected to reliably make sense of complex, fast-changing environments. From a cognitive standpoint, they need the appropriate reasoning capabilities and background knowledge required to exhibit human-like Visual…

Artificial Intelligence · Computer Science 2021-04-02 Agnese Chiatti , Gianluca Bardaro , Enrico Motta , Enrico Daga

Detecting and identifying objects in satellite images is a very challenging task: objects of interest are often very small and features can be difficult to recognize even using very high resolution imagery. For most applications, this…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Damien Grosgeorge , Maxime Arbelot , Alex Goupilleau , Tugdual Ceillier , Renaud Allioux

Spatial filtering is a commonly deployed technique to improve the quality of laser beams by optically filtering the noise. In the "textbook" example, the noise is usually assumed to be high frequency and the laser beam, Gaussian. In this…

Optics · Physics 2021-02-03 Jonathan Pinnell , Asher Klug , Andrew Forbes

Automatic feature extraction domain has witnessed the application of many intelligent methodologies over past decade; however detection accuracy of these approaches were limited as object geometry and contextual knowledge were not given…

Computer Vision and Pattern Recognition · Computer Science 2013-03-28 P. V. Arun , S. K. Katiyar

Explainable object recognition using vision-language models such as CLIP involves predicting accurate category labels supported by rationales that justify the decision-making process. Existing methods typically rely on prompt-based…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Ali Rasekh , Sepehr Kazemi Ranjbar , Simon Gottschalk

This study introduces a novel unsupervised medical image feature extraction method that employs spatial stratification techniques. An objective function based on weight is proposed to achieve the purpose of fast image recognition. The…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Qishi Zhan , Dan Sun , Erdi Gao , Yuhan Ma , Yaxin Liang , Haowei Yang

Visual localization is a useful alternative to standard localization techniques. It works by utilizing cameras. In a typical scenario, features are extracted from captured images and compared with geo-referenced databases. Location…

Computer Vision and Pattern Recognition · Computer Science 2020-06-28 Li Weng , Valerie Gouet-Brunet , Bahman Soheilian

Existing computer vision and object detection methods strongly rely on neural networks and deep learning. This active research area is used for applications such as autonomous driving, aerial photography, protection, and monitoring.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-01 Imran Khan Mirani , Chen Tianhua , Malak Abid Ali Khan , Syed Muhammad Aamir , Waseef Menhaj

This work is in the field of video surveillance including motion detection. The video surveillance is one of essential techniques for automatic video analysis to extract crucial information or relevant scenes in video surveillance systems.…

Computer Vision and Pattern Recognition · Computer Science 2016-08-15 Larbi Guezouli , Hanane Belhani

Perception of the visually disjoint surfaces of our cluttered world as whole objects, physically distinct from those overlapping them, is a cognitive phenomenon called objectness that forms the basis of our visual perception. Shared by all…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Douglas Poland , Amar Saini

Detection and description of keypoints from an image is a well-studied problem in Computer Vision. Some methods like SIFT, SURF or ORB are computationally really efficient. This paper proposes a solution for a particular case study on…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Ibon Merino , Jon Azpiazu , Anthony Remazeilles , Basilio Sierra

The integration of a SLAM algorithm with place recognition technology empowers it with the ability to mitigate accumulated errors and to relocalize itself. However, existing methods for point cloud-based place recognition predominantly rely…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Haodong Yuan , Yudong Zhang , Shengyin Fan , Xue Li , Jian Wang

A fundamental problem in computer vision is that of inferring the intrinsic, 3D structure of the world from flat, 2D images of that world. Traditional methods for recovering scene properties such as shape, reflectance, or illumination rely…

Computer Vision and Pattern Recognition · Computer Science 2020-10-09 Jonathan T. Barron , Jitendra Malik

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…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Joel Le Roux , Philippe Chaurand , Mickael Urrutia

Deep learning based object detection has achieved great success. However, these supervised learning methods are data-hungry and time-consuming. This restriction makes them unsuitable for limited data and urgent tasks, especially in the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Tengfei Zhang , Yue Zhang , Xian Sun , Menglong Yan , Yaoling Wang , Kun Fu