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In the realm of autonomous vehicle perception, comprehending 3D scenes is paramount for tasks such as planning and mapping. Camera-based 3D Semantic Occupancy Prediction (OCC) aims to infer scene geometry and semantics from limited…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Sanbao Su , Nuo Chen , Chenchen Lin , Felix Juefei-Xu , Chen Feng , Fei Miao

Small-sized unmanned surface vehicles (USV) are coastal water devices with a broad range of applications such as environmental control and surveillance. A crucial capability for autonomous operation is obstacle detection for timely reaction…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 Borja Bovcon , Jon Muhovič , Duško Vranac , Dean Mozetič , Janez Perš , Matej Kristan

Obtaining pixel-level annotations over large spatial extents remains a major bottleneck for deploying machine learning in ecological applications. Here we present a multi-scale weakly supervised semantic segmentation (WSSS) framework that…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Matteo Contini , Victor Illien , Sylvain Poulain , Serge Bernard , Julien Barde , Sylvain Bonhommeau , Alexis Joly

Accurate and reliable optical remote sensing image-based small-ship detection is crucial for maritime surveillance systems, but existing methods often struggle with balancing detection performance and computational complexity. In this…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Yifan Yin , Xu Cheng , Fan Shi , Xiufeng Liu , Huan Huo , Shengyong Chen

This paper presents a novel spatio-temporal LSTM (SPATIAL) architecture for time series forecasting applied to environmental datasets. The framework was evaluated across multiple sensors and for three different oceanic variables: current…

Machine Learning · Statistics 2021-08-27 Yihao Hu , Fearghal O'Donncha , Paulito Palmes , Meredith Burke , Ramon Filgueira , Jon Grant

The machine learning community has witnessed impressive advancements since large language models (LLMs) first appeared. Yet, their massive memory consumption has become a significant roadblock to large-scale training. For instance, a 7B…

Machine Learning · Computer Science 2024-12-30 Rui Pan , Xiang Liu , Shizhe Diao , Renjie Pi , Jipeng Zhang , Chi Han , Tong Zhang

Maritime object detection is critical for the safe navigation of unmanned surface vessels (USVs), requiring accurate recognition of obstacles from small buoys to large vessels. Real-time detection is challenging due to long distances, small…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Tinsae Yehuala , Hao Cheng , Ville Lehtola

The determination of accurate bathymetric information is a key element for near offshore activities, hydrological studies such as coastal engineering applications, sedimentary processes, hydrographic surveying as well as archaeological…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Panagiotis Agrafiotis , Dimitrios Skarlatos , Andreas Georgopoulos , Konstantinos Karantzalos

This paper presents the first scientific application of local time-stepping (LTS) schemes in the Model for Prediction Across Scales-Ocean (MPAS-O). We use LTS schemes in a single-layer, global ocean model that predicts the storm surge…

Scene recognition, particularly for aerial and underwater images, often suffers from various types of degradation, such as blurring or overexposure. Previous works that focus on convolutional neural networks have been shown to be able to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Jianqi Zhang , Mengxuan Wang , Jingyao Wang , Lingyu Si , Changwen Zheng , Fanjiang Xu

Satellite Synthetic Aperture Radar (SAR) observations can provide a global view of ocean swell fields when using a specific "wave mode" sampling. A methodology is presented to routinely derive integral properties of the longer wavelength…

Atmospheric and Oceanic Physics · Physics 2009-02-23 Fabrice Collard , Fabrice Ardhuin , Bertrand Chapron

To calculate the wind-waves in the Indian Ocean (IO), the wind field for the period from 1998 to 2009 was used, obtained from the NCEP/NOAA archive, and numerical model WAM (Cycle-4) was applied, modified by the new source function proposed…

Atmospheric and Oceanic Physics · Physics 2011-09-30 V. G. Polnikov , F. A. Pogarskii , S. A. Sannasiraj , V. Sundar

Marine debris detection for ocean robot is crucial for ecological protection, yet performance is often degraded by low-quality images with blur, complex backgrounds, and small targets. To address these challenges, we propose YOLO-MD, an…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Yuyang Li , Jiashu Han , Yinyi Lai , Wenbin Kang , Zenghui Liu

Today's heavy machine learning tasks are fueled by large datasets. Computing is performed with power hungry processors whose performance is ultimately limited by the data transfer to and from memory. Optics is one of the powerful means of…

Estimating the importance of variables is an essential task in modern machine learning. This help to evaluate the goodness of a feature in a given model. Several techniques for estimating the importance of variables have been developed…

Machine Learning · Statistics 2022-08-09 Louis Mozart Kamdem , Ernest Fokoue

Accurate and temporally consistent segmentation of the left ventricle from echocardiography videos is essential for estimating the ejection fraction and assessing cardiac function. However, modeling spatiotemporal dynamics remains difficult…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Rui Wang , Huisi Wu , Jing Qin

Many wind wave spectrum models provide excellent wave height prediction given the input of wind speed and wave age. Their quantification of the surface roughness, on the other hand, varies considerably. The ocean surface roughness is…

Geophysics · Physics 2022-09-14 Paul A. Hwang

Spatial relation reasoning is a crucial task for multimodal large language models (MLLMs) to understand the objective world. However, current benchmarks have issues like relying on bounding boxes, ignoring perspective substitutions, or…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Jingping Liu , Ziyan Liu , Zhedong Cen , Yan Zhou , Yinan Zou , Weiyan Zhang , Haiyun Jiang , Tong Ruan

Towards reducing the training signaling overhead in large scale and dense cloud radio access networks (CRAN), various approaches have been proposed based on the channel sparsification assumption, namely, only a small subset of the deployed…

Information Theory · Computer Science 2018-02-12 Stelios Stefanatos , Gerhard Wunder

Benefiting from massive corpora and advanced hardware, large language models (LLMs) exhibit remarkable capabilities in language understanding and generation. However, their performance degrades in scenarios where multiple tasks are…

Computation and Language · Computer Science 2023-10-24 Xiao Wang , Tianze Chen , Qiming Ge , Han Xia , Rong Bao , Rui Zheng , Qi Zhang , Tao Gui , Xuanjing Huang