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We show how to train a Convolutional Neural Network to assign a canonical orientation to feature points given an image patch centered on the feature point. Our method improves feature point matching upon the state-of-the art and can be used…

Computer Vision and Pattern Recognition · Computer Science 2016-04-12 Kwang Moo Yi , Yannick Verdie , Pascal Fua , Vincent Lepetit

Fundoscopic images are often investigated by ophthalmologists to spot abnormal lesions to make diagnoses. Recent successes of convolutional neural networks are confined to diagnoses of few diseases without proper localization of lesion. In…

Computer Vision and Pattern Recognition · Computer Science 2018-11-05 Jaemin Son , Woong Bae , Sangkeun Kim , Sang Jun Park , Kyu-Hwan Jung

Domain shift poses a significant challenge in Cross-Domain Facial Expression Recognition (CD-FER) due to the distribution variation across different domains. Current works mainly focus on learning domain-invariant features through global…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Yuefang Gao , Yuhao Xie , Zeke Zexi Hu , Tianshui Chen , Liang Lin

The field of collaborative robotics and human-robot interaction often focuses on the prediction of human behaviour, while assuming the information about the robot setup and configuration being known. This is often the case with fixed…

Robotics · Computer Science 2019-02-18 Justinas Miseikis , Inka Brijacak , Saeed Yahyanejad , Kyrre Glette , Ole Jakob Elle , Jim Torresen

We study adapting trained object detectors to unseen domains manifesting significant variations of object appearance, viewpoints and backgrounds. Most current methods align domains by either using image or instance-level feature alignment…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Muhammad Akhtar Munir , Muhammad Haris Khan , M. Saquib Sarfraz , Mohsen Ali

Unsupervised domain adaptation, which involves transferring knowledge from a label-rich source domain to an unlabeled target domain, can be used to substantially reduce annotation costs in the field of object detection. In this study, we…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Kazuma Fujii , Hiroshi Kera , Kazuhiko Kawamoto

Despite considerable strides in developing deep learning models for 3D medical image segmentation, the challenge of effectively generalizing across diverse image distributions persists. While domain generalization is acknowledged as vital…

Object detection and localization are crucial tasks for biomedical image analysis, particularly in the field of hematology where the detection and recognition of blood cells are essential for diagnosis and treatment decisions. While…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Shun Liu , Jianan Zhang , Ruocheng Song , Teik Toe Teoh

We present a novel boundary-aware face alignment algorithm by utilising boundary lines as the geometric structure of a human face to help facial landmark localisation. Unlike the conventional heatmap based method and regression based…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Wayne Wu , Chen Qian , Shuo Yang , Quan Wang , Yici Cai , Qiang Zhou

This research presents ADOD, a novel approach to address domain generalization in underwater object detection. Our method enhances the model's ability to generalize across diverse and unseen domains, ensuring robustness in various…

Computer Vision and Pattern Recognition · Computer Science 2023-12-13 Lyes Saad Saoud , Zhenwei Niu , Atif Sultan , Lakmal Seneviratne , Irfan Hussain

We present a vehicle self-localization method using point-based deep neural networks. Our approach processes measurements and point features, i.e. landmarks, from a high-definition digital map to infer the vehicle's pose. To learn the best…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Nico Engel , Vasileios Belagiannis , Klaus Dietmayer

LiDAR-based 3D object detectors have been largely utilized in various applications, including autonomous vehicles or mobile robots. However, LiDAR-based detectors often fail to adapt well to target domains with different sensor…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Jiyun Jang , Mincheol Chang , Jongwon Park , Jinkyu Kim

While data augmentation (DA) is generally applied to input data, several studies have reported that applying DA to hidden layers in neural networks, i.e., feature augmentation, can improve performance. However, in previous studies, the…

Machine Learning · Computer Science 2024-08-27 Tomoumi Takase , Ryo Karakida

Relocalization is a fundamental task in the field of robotics and computer vision. There is considerable work in the field of deep camera relocalization, which directly estimates poses from raw images. However, learning-based methods have…

Robotics · Computer Science 2021-03-23 Wei Wang , Pedro P. B. de Gusmo , Bo Yang , Andrew Markham , Niki Trigoni

Task-driven features learned by modern object detectors optimize end task loss yet often capture shortcut correlations that fail to reflect underlying annotation structure. Such representations limit transfer, interpretability, and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Meilun Zhou , Alina Zare

Image registration is a process of aligning two or more images of same objects using geometric transformation. Most of the existing approaches work on the assumption of location invariance. These approaches require object-centric images to…

Computer Vision and Pattern Recognition · Computer Science 2019-01-14 Deepak Mishra , Rajeev Ranjan , Santanu Chaudhury , Mukul Sarkar , Arvinder Singh Soin

Three-dimensional (3D) reconstruction of head Computed Tomography (CT) images elucidates the intricate spatial relationships of tissue structures, thereby assisting in accurate diagnosis. Nonetheless, securing an optimal head CT scan…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Bowen Zheng , Chenxi Huang , Yuemei Luo

Loss functions are error metrics that quantify the difference between a prediction and its corresponding ground truth. Fundamentally, they define a functional landscape for traversal by gradient descent. Although numerous loss functions…

Image and Video Processing · Electrical Eng. & Systems 2021-04-09 Chaitanya Kaul , Nick Pears , Hang Dai , Roderick Murray-Smith , Suresh Manandhar

Recent approaches have shown that training deep neural networks directly on large-scale image-text pair collections enables zero-shot transfer on various recognition tasks. One central issue is how this can be generalized to object…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Johnathan Xie , Shuai Zheng

Choosing a decision threshold is one of the challenging job in any classification tasks. How much the model is accurate, if the deciding boundary is not picked up carefully, its entire performance would go in vain. On the other hand, for…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Bharat Bohara