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Detecting poorly textured objects and estimating their 3D pose reliably is still a very challenging problem. We introduce a simple but powerful approach to computing descriptors for object views that efficiently capture both the object…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Paul Wohlhart , Vincent Lepetit

Recent works show that local descriptor learning benefits from the use of L2 normalisation, however, an in-depth analysis of this effect lacks in the literature. In this paper, we investigate how L2 normalisation affects the back-propagated…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Yurun Tian , Axel Barroso-Laguna , Tony Ng , Vassileios Balntas , Krystian Mikolajczyk

Camera and Lidar processing have been revolutionized with the rapid development of deep learning model architectures. Automotive radar is one of the crucial elements of automated driver assistance and autonomous driving systems. Radar still…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Farzan Erlik Nowruzi , Dhanvin Kolhatkar , Prince Kapoor , Elnaz Jahani Heravi , Fahed Al Hassanat , Robert Laganiere , Julien Rebut , Waqas Malik

Many gradient-based meta-learning methods assume a set of parameters that do not participate in inner-optimization, which can be considered as hyperparameters. Although such hyperparameters can be optimized using the existing gradient-based…

Machine Learning · Computer Science 2022-02-15 Hae Beom Lee , Hayeon Lee , Jaewoong Shin , Eunho Yang , Timothy Hospedales , Sung Ju Hwang

The observation of the advancing and retreating pattern of polar sea ice cover stands as a vital indicator of global warming. This research aims to develop a robust, effective, and scalable system for classifying polar sea ice as…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Jurdana Masuma Iqrah , Wei Wang , Hongjie Xie , Sushil Prasad

Pairwise learning underpins implicit collaborative filtering, yet its effectiveness is often hindered by sparse supervision, noisy interactions, and popularity-driven exposure bias. In this paper, we propose Variational Bayesian…

Information Retrieval · Computer Science 2026-03-25 Bin Liu , Xiaohong Liu , Qin Luo , Ziqiao Shang , Jielei Chu , Lin Ma , Zhaoyu Li , Fei Teng , Guangtao Zhai , Tianrui Li

Dialect classification is used in a variety of applications, such as machine translation and speech recognition, to improve the overall performance of the system. In a real-world scenario, a deployed dialect classification model can…

Computation and Language · Computer Science 2024-03-26 Sourya Dipta Das , Yash Vadi , Abhishek Unnam , Kuldeep Yadav

Recent work by Suenderhauf et al. [1] demonstrated improved visual place recognition using proposal regions coupled with features from convolutional neural networks (CNN) to match landmarks between views. In this work we extend the approach…

Computer Vision and Pattern Recognition · Computer Science 2016-08-16 Pilailuck Panphattarasap , Andrew Calway

In this work, we present a novel method to learn a local cross-domain descriptor for 2D image and 3D point cloud matching. Our proposed method is a dual auto-encoder neural network that maps 2D and 3D input into a shared latent space…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Quang-Hieu Pham , Mikaela Angelina Uy , Binh-Son Hua , Duc Thanh Nguyen , Gemma Roig , Sai-Kit Yeung

Change detection, as a research hotspot in the field of remote sensing, has witnessed continuous development and progress. However, the discrimination of boundary details remains a significant bottleneck due to the complexity of surrounding…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Huan Zhong , Chen Wu , Ziqi Xiao

3D global relocalization is one of the key capabilities for mobile robots in practical applications. However, in large scale spaces, existing methods often suffer from prolonged online relocalization time due to factors such as the massive…

Robotics · Computer Science 2026-05-11 Jiahua Ren , Kai Shen , Muhua Zhang , Lei Ma

We propose a novel semiparametric classifier based on Mahalanobis distances of an observation from the competing classes. Our tool is a generalized additive model with the logistic link function that uses these distances as features to…

Methodology · Statistics 2025-02-05 Annesha Ghosh , Anil K. Ghosh , Rita SahaRay , Soham Sarkar

Global warming is an urgent issue that is generating catastrophic environmental changes, such as the melting of sea ice and glaciers, particularly in the polar regions. The melting pattern and retreat of polar sea ice cover is an essential…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Jurdana Masuma Iqrah , Younghyun Koo , Wei Wang , Hongjie Xie , Sushil Prasad

We propose POLAR, a novel radar-guided depth estimation method that introduces polynomial fitting to efficiently transform scaleless depth predictions from pretrained monocular depth estimation (MDE) models into metric depth maps. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Patrick Rim , Hyoungseob Park , Vadim Ezhov , Jeffrey Moon , Alex Wong

In this paper, we address the problem of 6-DoF object pose estimation from a single RGB image. Indirect methods that typically predict intermediate 2D keypoints, followed by a Perspective-n-Point solver, have shown great performance. Direct…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Nassim Ali Ousalah , Peyman Rostami , Vincent Gaudillière , Emmanuel Koumandakis , Anis Kacem , Enjie Ghorbel , Djamila Aouada

We propose an efficient method to learn deep local descriptors for instance-level recognition. The training only requires examples of positive and negative image pairs and is performed as metric learning of sum-pooled global image…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Giorgos Tolias , Tomas Jenicek , Ondřej Chum

Category-level object pose estimation aims to recover the rotation, translation and size of unseen instances within predefined categories. In this task, deep neural network-based methods have demonstrated remarkable performance. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Xiao Lin , Yun Peng , Liuyi Wang , Xianyou Zhong , Minghao Zhu , Jingwei Yang , Yi Feng , Chengju Liu , Qijun Chen

Compared to traditional electrodynamic loudspeakers, the parametric array loudspeaker (PAL) offers exceptional directivity for audio applications but suffers from significant nonlinear distortions due to its inherent intricate demodulation…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-11 Mengtong Li , Tao Zhuang , Kai Chen , Jia-Xin Zhong , Jing Lu

We often encounter limited FOV situations due to various factors such as sensor fusion or sensor mount in real-world robot navigation. However, the limited FOV interrupts the generation of descriptions and impacts place recognition…

Robotics · Computer Science 2024-10-03 Hogyun Kim , Jiwon Choi , Taehu Sim , Giseop Kim , Younggun Cho

Voronoi intensity estimators, which are non-parametric estimators for intensity functions of point processes, are both parameter-free and adaptive; the intensity estimate at a given location is given by the reciprocal size of the…