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Scene classification has established itself as a challenging research problem. Compared to images of individual objects, scene images could be much more semantically complex and abstract. Their difference mainly lies in the level of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Ji Zhang , Jean-Paul Ainam , Li-hui Zhao , Wenai Song , Xin Wang

Visual localization is critical to many applications in computer vision and robotics. To address single-image RGB localization, state-of-the-art feature-based methods match local descriptors between a query image and a pre-built 3D model.…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Xiaotian Li , Shuzhe Wang , Yi Zhao , Jakob Verbeek , Juho Kannala

Current research on visual place recognition mostly focuses on aggregating local visual features of an image into a single vector representation. Therefore, high-level information such as the geometric arrangement of the features is…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Felix Taubner , Florian Tschopp , Tonci Novkovic , Roland Siegwart , Fadri Furrer

3D landmark detection is a critical task in medical image analysis, and accurately detecting anatomical landmarks is essential for subsequent medical imaging tasks. However, mainstream deep learning methods in this field struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-22 Zhen Huang , Tao Tang , Ronghao Xu , Yangbo Wei , Wenkai Yang , Suhua Wang , Xiaoxin Sun , Han Li , Qingsong Yao

Visual localization is considered to be one of the crucial parts in many robotic and vision systems. While state-of-the art methods that relies on feature matching have proven to be accurate for visual localization, its requirements for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Huy-Hoang Bui , Bach-Thuan Bui , Quang-Vinh Tran , Yasuyuki Fujii , Joo-Ho Lee

Visual Simultaneous Localization and Mapping (SLAM) plays a vital role in real-time localization for autonomous systems. However, traditional SLAM methods, which assume a static environment, often suffer from significant localization drift…

Robotics · Computer Science 2025-07-30 Haolan Zhang , Thanh Nguyen Canh , Chenghao Li , Nak Young Chong

In current biological and medical research, statistical shape modeling (SSM) provides an essential framework for the characterization of anatomy/morphology. Such analysis is often driven by the identification of a relatively small number of…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Riddhish Bhalodia , Shireen Elhabian , Ladislav Kavan , Ross Whitaker

In this paper, we propose a novel face alignment method using single deep network (SDN) on existing limited training data. Rather than using a max-pooling layer followed one convolutional layer in typical convolutional neural networks…

Computer Vision and Pattern Recognition · Computer Science 2017-02-10 Zongping Deng , Ke Li , Qijun Zhao , Yi Zhang , Hu Chen

Convolutional Neural Networks (CNNs) have made remarkable progress on scene recognition, partially due to these recent large-scale scene datasets, such as the Places and Places2. Scene categories are often defined by multi-level…

Computer Vision and Pattern Recognition · Computer Science 2017-04-26 Limin Wang , Sheng Guo , Weilin Huang , Yuanjun Xiong , Yu Qiao

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

This paper presents a fully unsupervised deep change detection approach for mobile robots with 3D LiDAR. In unstructured environments, it is infeasible to define a closed set of semantic classes. Instead, semantic segmentation is…

Robotics · Computer Science 2024-05-01 Alexander Krawciw , Jordy Sehn , Timothy D. Barfoot

Self-training is a simple yet effective method for semi-supervised learning, during which pseudo-label selection plays an important role for handling confirmation bias. Despite its popularity, applying self-training to landmark detection…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Haibo Jin , Haoxuan Che , Hao Chen

Deep neural network models have achieved remarkable progress in 3D scene understanding while trained in the closed-set setting and with full labels. However, the major bottleneck is that these models do not have the capacity to recognize…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Kangcheng Liu , Yong-Jin Liu , Baoquan Chen

We devise a graph attention network-based approach for learning a scene triangle mesh representation in order to estimate an image camera position in a dynamic environment. Previous approaches built a scene-dependent model that explicitly…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Mohamed Amine Ouali , Mohamed Bouguessa , Riadh Ksantini

Visual localization is the task of accurate camera pose estimation in a known scene. It is a key problem in computer vision and robotics, with applications including self-driving cars, Structure-from-Motion, SLAM, and Mixed Reality.…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Torsten Sattler , Qunjie Zhou , Marc Pollefeys , Laura Leal-Taixe

LiDAR is widely used to capture accurate 3D outdoor scene structures. However, LiDAR produces many undesirable noise points in snowy weather, which hamper analyzing meaningful 3D scene structures. Semantic segmentation with snow labels…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Gwangtak Bae , Byungjun Kim , Seongyong Ahn , Jihong Min , Inwook Shim

This paper presents a collaborative implicit neural simultaneous localization and mapping (SLAM) system with RGB-D image sequences, which consists of complete front-end and back-end modules including odometry, loop detection, sub-map…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Jiarui Hu , Mao Mao , Hujun Bao , Guofeng Zhang , Zhaopeng Cui

Loop detection plays a key role in visual Simultaneous Localization and Mapping (SLAM) by correcting the accumulated pose drift. In indoor scenarios, the richly distributed semantic landmarks are view-point invariant and hold strong…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Chuhao Liu , Shaojie Shen

DNN-based methods have shown high performance in sound event localization and detection(SELD). While in real spatial sound scenes, reverberation and the imbalanced presence of various sound events increase the complexity of the SELD task.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-18 Siwei Huang , Jianfeng Chen , Jisheng Bai , Yafei Jia , Dongzhe Zhang

Point cloud maps generated via LiDAR sensors using extensive remotely sensed data are commonly used by autonomous vehicles and robots for localization and navigation. However, dynamic objects contained in point cloud maps not only downgrade…

Robotics · Computer Science 2024-02-29 Feiya Li , Chunyun Fu , Dongye Sun , Jian Li , Jianwen Wang