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Person Re-Identification is a challenging task that aims to retrieve all instances of a query image across a system of non-overlapping cameras. Due to the various extreme changes of view, it is common that local regions that could be used…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Rodolfo Quispe , Helio Pedrini

Semantic matching, which aims to determine the matching degree between two texts, is a fundamental problem for many NLP applications. Recently, deep learning approach has been applied to this problem and significant improvements have been…

Computation and Language · Computer Science 2016-04-20 Shengxian Wan , Yanyan Lan , Jun Xu , Jiafeng Guo , Liang Pang , Xueqi Cheng

Recognizing toponyms and resolving them to their real-world referents is required for providing advanced semantic access to textual data. This process is often hindered by the high degree of variation in toponyms. Candidate selection is the…

Computation and Language · Computer Science 2020-09-23 Mariona Coll Ardanuy , Kasra Hosseini , Katherine McDonough , Amrey Krause , Daniel van Strien , Federico Nanni

Human-centric explainability of AI-based Decision Support Systems (DSS) using visual input modalities is directly related to reliability and practicality of such algorithms. An otherwise accurate and robust DSS might not enjoy trust of…

Machine Learning · Computer Science 2022-01-06 Adriano Lucieri , Muhammad Naseer Bajwa , Andreas Dengel , Sheraz Ahmed

We propose a new approach to determine correspondences between image pairs in the wild under large changes in illumination, viewpoint, context, and material. While other approaches find correspondences between pairs of images by treating…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Olivia Wiles , Sebastien Ehrhardt , Andrew Zisserman

Although convolution neural network based stereo matching architectures have made impressive achievements, there are still some limitations: 1) Convolutional Feature (CF) tends to capture appearance information, which is inadequate for…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Biyang Liu , Huimin Yu , Yangqi Long

Hierarchical visual localization methods achieve state-of-the-art accuracy but require substantial memory as they need to store all database images. Direct 2D-3D matching requires significantly less memory but suffers from lower accuracy…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Son Tung Nguyen , Alejandro Fontan , Michael Milford , Tobias Fischer

The application of Deep Neural Networks for ranking in search engines may obviate the need for the extensive feature engineering common to current learning-to-rank methods. However, we show that combining simple relevance matching features…

Information Retrieval · Computer Science 2017-01-27 Aaron Jaech , Hetunandan Kamisetty , Eric Ringger , Charlie Clarke

6D object pose estimation has been a research topic in the field of computer vision and robotics. Many modern world applications like robot grasping, manipulation, autonomous navigation etc, require the correct pose of objects present in a…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Ankit Kumar , Priya Shukla , Vandana Kushwaha , G. C. Nandi

Image matting is a fundamental and challenging problem in computer vision and graphics. Most existing matting methods leverage a user-supplied trimap as an auxiliary input to produce good alpha matte. However, obtaining high-quality trimap…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Tianyi Wei , Dongdong Chen , Wenbo Zhou , Jing Liao , Hanqing Zhao , Weiming Zhang , Nenghai Yu

Traditional studies emphasize the significance of context information in improving matting performance. Consequently, deep learning-based matting methods delve into designing pooling or affinity-based context aggregation modules to achieve…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Qinglin Liu , Xiaoqian Lv , Quanling Meng , Zonglin Li , Xiangyuan Lan , Shuo Yang , Shengping Zhang , Liqiang Nie

We present a filtering-based method for semantic mapping to simultaneously detect objects and localize their 6 degree-of-freedom pose. For our method, called Contextual Temporal Mapping (or CT-Map), we represent the semantic map as a belief…

Robotics · Computer Science 2018-10-30 Zhen Zeng , Yunwen Zhou , Odest Chadwicke Jenkins , Karthik Desingh

Stereo matching plays a crucial role in 3D perception and scenario understanding. Despite the proliferation of promising methods, addressing texture-less and texture-repetitive conditions remains challenging due to the insufficient…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Tong Zhao , Mingyu Ding , Wei Zhan , Masayoshi Tomizuka , Yintao Wei

Effective scene representation is critical for the visual grounding ability of representations, yet existing methods for 3D Visual Grounding are often constrained. They either only focus on geometric and visual cues, or, like traditional 3D…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Qinghongbing Xie , Zijian Liang , Fuhao Li , Long Zeng

We present Context Forest (ConF), a technique for predicting properties of the objects in an image based on its global appearance. Compared to standard nearest-neighbour techniques, ConF is more accurate, fast and memory efficient. We train…

Computer Vision and Pattern Recognition · Computer Science 2015-03-04 Davide Modolo , Alexander Vezhnevets , Vittorio Ferrari

There is extensive interest in metric learning methods for image retrieval. Many metric learning loss functions focus on learning a correct ranking of training samples, but strongly overfit semantically inconsistent labels and require a…

Machine Learning · Computer Science 2023-06-05 Christopher Liao , Theodoros Tsiligkaridis , Brian Kulis

Most existing person re-identification methods compute the matching relations between person images across camera views based on the ranking of the pairwise similarities. This matching strategy with the lack of the global viewpoint and the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Min Cao , Cong Ding , Chen Chen , Junchi Yan , Qi Tian

Video stereo matching is the task of estimating consistent disparity maps from rectified stereo videos. There is considerable scope for improvement in both datasets and methods within this area. Recent learning-based methods often focus on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Junpeng Jing , Ye Mao , Anlan Qiu , Krystian Mikolajczyk

Deep Metric Learning (DML) approaches learn to represent inputs to a lower-dimensional latent space such that the distance between representations in this space corresponds with a predefined notion of similarity. This paper investigates how…

Computer Vision and Pattern Recognition · Computer Science 2020-09-09 Niall O' Mahony , Sean Campbell , Anderson Carvalho , Lenka Krpalkova , Gustavo Velasco-Hernandez , Daniel Riordan , Joseph Walsh

While both outdoor and indoor localization methods are flourishing, how to properly marry them to offer pervasive localizability in urban areas remains open. Recently proposals on indoor-outdoor detection make the first step towards such an…

Networking and Internet Architecture · Computer Science 2020-10-29 Feng Li , Jin Wang , Jun Luo