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This paper describes the application of a real coded genetic algorithm (GA) to align two or more 2-D images by means of image registration. The proposed search strategy is a transformation parameters-based approach involving the affine…

Neural and Evolutionary Computing · Computer Science 2012-04-11 Mosab Bazargani , António dos Anjos , Fernando G. Lobo , Ali Mollahosseini , Hamid Reza Shahbazkia

The fundamental matrix can be estimated from point matches. The current gold standard is to bootstrap the eight-point algorithm and two-view projective bundle adjustment. The eight-point algorithm first computes a simple linear least…

Optimization and Control · Mathematics 2014-03-20 Florian Bugarin , Adrien Bartoli , Didier Henrion , Jean-Bernard Lasserre , Jean-José Orteu , Thierry Sentenac

Fine-grained object retrieval aims to learn discriminative representation to retrieve visually similar objects. However, existing top-performing works usually impose pairwise similarities on the semantic embedding spaces or design a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Shijie Wang , Jianlong Chang , Zhihui Wang , Haojie Li , Wanli Ouyang , Qi Tian

We introduce Adaptive Guided Upsampling (AGU), an efficient method for upscaling low-light images capable of optimizing multiple image quality characteristics at the same time, such as reducing noise and increasing sharpness. It is based on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Angela Vivian Dcosta , Chunbo Song , Rafael Radkowski

Accurate and stable feature matching is critical for computer vision tasks, particularly in applications such as Simultaneous Localization and Mapping (SLAM). While recent learning-based feature matching methods have demonstrated promising…

Robotics · Computer Science 2025-04-08 Yuqing Wang , Yan Wang , Hailiang Tang , Xiaoji Niu

This paper presents Contrastive Reconstruction, ConRec - a self-supervised learning algorithm that obtains image representations by jointly optimizing a contrastive and a self-reconstruction loss. We showcase that state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Jonas Dippel , Steffen Vogler , Johannes Höhne

Few-shot, fine-grained classification requires a model to learn subtle, fine-grained distinctions between different classes (e.g., birds) based on a few images alone. This requires a remarkable degree of invariance to pose, articulation and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Luming Tang , Davis Wertheimer , Bharath Hariharan

Image-text retrieval requires the system to bridge the heterogenous gap between vision and language for accurate retrieval while keeping the network lightweight-enough for efficient retrieval. Existing trade-off solutions mainly study from…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Jiamin Zhuang , Jing Yu , Yang Ding , Xiangyan Qu , Yue Hu

Low-Rank Adaptation (LoRA) is widely used for federated fine-tuning. Yet under non-IID settings, it can substantially underperform full-parameter fine-tuning. Through with-high-probability robustness analysis, we uncover that this gap can…

Machine Learning · Computer Science 2026-02-03 Hongyi Peng , Han Yu , Xiaoxiao Li , Qiang Yang

A computer-aided interpretation approach is proposed to detect rheumatic arthritis (RA) of human finger joints in optical tomographic images. The image interpretation method employs a multi-variate signal detection analysis aided by a…

The goal of few-shot fine-grained image classification is to recognize rarely seen fine-grained objects in the query set, given only a few samples of this class in the support set. Previous works focus on learning discriminative image…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Yike Wu , Bo Zhang , Gang Yu , Weixi Zhang , Bin Wang , Tao Chen , Jiayuan Fan

In recent years, robust matching methods using deep learning-based approaches have been actively studied and improved in computer vision tasks. However, there remains a persistent demand for both robust and fast matching techniques. To…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Kihwan Ryoo , Hyungtae Lim , Hyun Myung

The conjugate gradient method is a widely used algorithm for the numerical solution of a system of linear equations. It is particularly attractive because it allows one to take advantage of sparse matrices and produces (in case of infinite…

Numerical Analysis · Mathematics 2017-11-27 Sergey Voronin , Christophe Zaroli , Naresh P. Cuntoor

We propose a novel Enhanced Feature Aggregation and Selection network (EFASNet) for multi-person 2D human pose estimation. Due to enhanced feature representation, our method can well handle crowded, cluttered and occluded scenes. More…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Xixia Xu , Qi Zou , Xue Lin

This work addresses the challenge of sub-pixel accuracy in detecting 2D local features, a cornerstone problem in computer vision. Despite the advancements brought by neural network-based methods like SuperPoint and ALIKED, these modern…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Shinjeong Kim , Marc Pollefeys , Daniel Barath

Reliable segmentation of road lines and markings is critical to autonomous driving. Our work is motivated by the observations that road lines and markings are (1) frequently occluded in the presence of moving vehicles, shadow, and glare and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Shan Wang , Chuong Nguyen , Jiawei Liu , Kaihao Zhang , Wenhan Luo , Yanhao Zhang , Sundaram Muthu , Fahira Afzal Maken , Hongdong Li

Fine-grained object categorization aims for distinguishing objects of subordinate categories that belong to the same entry-level object category. The task is challenging due to the facts that (1) training images with ground-truth labels are…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Yabin Zhang , Kui Jia , Zhixin Wang

We study the problem of extracting correspondences between a pair of point clouds for registration. For correspondence retrieval, existing works benefit from matching sparse keypoints detected from dense points but usually struggle to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Hao Yu , Fu Li , Mahdi Saleh , Benjamin Busam , Slobodan Ilic

Fine-grained object recognition concerns the identification of the type of an object among a large number of closely related sub-categories. Multisource data analysis, that aims to leverage the complementary spectral, spatial, and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Gencer Sumbul , Ramazan Gokberk Cinbis , Selim Aksoy

Intelligent analysis of medical imaging plays a crucial role in assisting clinical diagnosis. However, achieving efficient and high-accuracy image classification in resource-constrained computational environments remains challenging. This…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Jingsong Xia , Yue Yin , Xiuhan Li