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This paper investigates methods for estimating uncertainty in semantic segmentation predictions derived from satellite imagery. Estimating uncertainty for segmentation presents unique challenges compared to standard image classification,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Melanie Rey , Andriy Mnih , Maxim Neumann , Matt Overlan , Drew Purves

Existing supervised action segmentation methods depend on the quality of frame-wise classification using attention mechanisms or temporal convolutions to capture temporal dependencies. Even boundary detection-based methods primarily depend…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Kamel Aouaidjia , Wenhao Zhang , Aofan Li , Chongsheng Zhang

Image matching is a classic and fundamental task in computer vision. In this paper, under the hypothesis that the areas outside the co-visible regions carry little information, we propose a matching key-points crop (MKPC) algorithm. The…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Hongjian Song , Yuki Kashiwaba , Shuai Wu , Canming Wang

The segmentation of satellite images is crucial in remote sensing applications. Existing methods face challenges in recognizing small-scale objects in satellite images for semantic segmentation primarily due to ignoring the low-level…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Tareque Bashar Ovi , Shakil Mosharrof , Nomaiya Bashree , Md Shofiqul Islam , Muhammad Nazrul Islam

Multi-modal Satellite Image Time Series (SITS) analysis faces significant computational challenges for live land monitoring applications. While Transformer architectures excel at capturing temporal dependencies and fusing multi-modal data,…

Image and Video Processing · Electrical Eng. & Systems 2026-03-26 Iris Dumeur , Jérémy Anger , Gabriele Facciolo

3D point cloud semantic segmentation has a wide range of applications. Recently, weakly supervised point cloud segmentation methods have been proposed, aiming to alleviate the expensive and laborious manual annotation process by leveraging…

Computer Vision and Pattern Recognition · Computer Science 2024-01-01 Xiawei Li , Qingyuan Xu , Jing Zhang , Tianyi Zhang , Qian Yu , Lu Sheng , Dong Xu

As research interests in medical image analysis become increasingly fine-grained, the cost for extensive annotation also rises. One feasible way to reduce the cost is to annotate with coarse-grained superclass labels while using limited…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Linrui Dai , Wenhui Lei , Xiaofan Zhang

Several interpretability methods for convolutional network-based classifiers exist. Most of these methods focus on extracting saliency maps for a given sample, providing a local explanation that highlights the main regions for the…

Machine Learning · Computer Science 2025-06-17 Alejandro Kuratomi , Zed Lee , Guilherme Dinis Chaliane Junior , Tony Lindgren , Diego García Pérez

In this paper we introduce the Temporo-Spatial Vision Transformer (TSViT), a fully-attentional model for general Satellite Image Time Series (SITS) processing based on the Vision Transformer (ViT). TSViT splits a SITS record into…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Michail Tarasiou , Erik Chavez , Stefanos Zafeiriou

In this paper, we study a challenging task of zero-shot referring image segmentation. This task aims to identify the instance mask that is most related to a referring expression without training on pixel-level annotations. Previous research…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Yucheng Suo , Linchao Zhu , Yi Yang

Image-level weakly-supervised semantic segmentation (WSSS) reduces the usually vast data annotation cost by surrogate segmentation masks during training. The typical approach involves training an image classification network using global…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Arvi Jonnarth , Yushan Zhang , Michael Felsberg

Weakly Supervised Semantic Segmentation (WSSS) based on image-level labels has attracted much attention due to low annotation costs. Existing methods often rely on Class Activation Mapping (CAM) that measures the correlation between image…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Qi Chen , Lingxiao Yang , Jianhuang Lai , Xiaohua Xie

Existing salient instance detection (SID) methods typically learn from pixel-level annotated datasets. In this paper, we present the first weakly-supervised approach to the SID problem. Although weak supervision has been considered in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Xin Tian , Ke Xu , Xin Yang , Baocai Yin , Rynson W. H. Lau

Generating precise class-aware pseudo ground-truths, a.k.a, class activation maps (CAMs), is essential for weakly-supervised semantic segmentation. The original CAM method usually produces incomplete and inaccurate localization maps. To…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Jinlong Li , Zequn Jie , Xu Wang , Xiaolin Wei , Lin Ma

Crop classification via deep learning on ground imagery can deliver timely and accurate crop-specific information to various stakeholders. Dedicated ground-based image acquisition exercises can help to collect data in data scarce regions,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Momchil Yordanov , Raphael d'Andrimont , Laura Martinez-Sanchez , Guido Lemoine , Dominique Fasbender , Marijn van der Velde

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels aims to achieve pixel-level predictions using Class Activation Maps (CAMs). Recently, Contrastive Language-Image Pre-training (CLIP) has been introduced in WSSS.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Zhiwei Yang , Yucong Meng , Kexue Fu , Feilong Tang , Shuo Wang , Zhijian Song

Place recognition gives a SLAM system the ability to correct cumulative errors. Unlike images that contain rich texture features, point clouds are almost pure geometric information which makes place recognition based on point clouds…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Lin Li , Xin Kong , Xiangrui Zhao , Tianxin Huang , Yong Liu

The realm of Weakly Supervised Instance Segmentation (WSIS) under box supervision has garnered substantial attention, showcasing remarkable advancements in recent years. However, the limitations of box supervision become apparent in its…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Xinyi Yu , Ling Yan , Pengtao Jiang , Hao Chen , Bo Li , Lin Yuanbo Wu , Linlin Ou

3D object detection from LiDAR point cloud is of critical importance for autonomous driving and robotics. While sequential point cloud has the potential to enhance 3D perception through temporal information, utilizing these temporal…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Zheyuan Zhou , Jiachen Lu , Yihan Zeng , Hang Xu , Li Zhang

Improper exposure often leads to severe loss of details, color distortion, and reduced contrast. Exposure correction still faces two critical challenges: (1) the ignorance of object-wise regional semantic information causes the color shift…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Puzhen Wu , Han Weng , Quan Zheng , Yi Zhan , Hewei Wang , Yiming Li , Jiahui Han , Rui Xu