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This research tackles the challenge of speckle noise in Synthetic Aperture Radar (SAR) space data, a prevalent issue that hampers the clarity and utility of SAR images. The study presents a comparative analysis of six distinct speckle noise…

Machine Learning · Computer Science 2024-08-19 Sanjjushri Varshini R , Rohith Mahadevan , Bagiya Lakshmi S , Mathivanan Periasamy , Raja CSP Raman , Lokesh M

Recent advances in using retrieval components over external knowledge sources have shown impressive results for a variety of downstream tasks in natural language processing. Here, we explore the use of unstructured external knowledge…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Shir Gur , Natalia Neverova , Chris Stauffer , Ser-Nam Lim , Douwe Kiela , Austin Reiter

We consider the problem of synthetic aperture radar (SAR) imaging and motion estimation of complex scenes. By complex we mean scenes with multiple targets, stationary and in motion. We use the usual setup with one moving antenna emitting…

Information Theory · Computer Science 2015-03-20 Liliana Borcea , Thomas Callaghan , George Papanicolaou

To translate synthetic aperture radar (SAR) image into interpretable forms for human understanding is the ultimate goal of SAR advanced information retrieval. Existing methods mainly focus on 3D surface reconstruction or local geometric…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Ziyu Yue , Ruixi You , Feng Xu

Visually impaired people could benefit from Visual Question Answering (VQA) systems to interpret text in their surroundings. However, current models often struggle with recognizing text in the photos taken by this population. Through…

Computation and Language · Computer Science 2025-06-05 Hernán Maina , Guido Ivetta , Mateo Lione Stuto , Julian Martin Eisenschlos , Jorge Sánchez , Luciana Benotti

We propose the task of free-form and open-ended Visual Question Answering (VQA). Given an image and a natural language question about the image, the task is to provide an accurate natural language answer. Mirroring real-world scenarios,…

Computation and Language · Computer Science 2016-10-28 Aishwarya Agrawal , Jiasen Lu , Stanislaw Antol , Margaret Mitchell , C. Lawrence Zitnick , Dhruv Batra , Devi Parikh

With the limited availability of labeled data with various atmospheric conditions in remote sensing images, it seems useful to work with self-supervised algorithms. Few pretext-based algorithms, including from rotation, spatial context and…

Artificial Intelligence · Computer Science 2024-03-12 Akansh Maurya , Hewan Shrestha , Mohammad Munem Shahriar

Polarimetric Synthetic Aperture Radar (PolSAR) images are an important source of information. Speckle noise gives SAR images a granular appearance that makes interpretation and analysis hard tasks. A major issue is the assessment of…

Applications · Statistics 2019-05-01 M. G. Palacio , S. B. Ferrero , A. C. Frery

Visual Question Answering (VQA) is a challenging task that has received increasing attention from both the computer vision and the natural language processing communities. Given an image and a question in natural language, it requires…

Computer Vision and Pattern Recognition · Computer Science 2016-07-21 Qi Wu , Damien Teney , Peng Wang , Chunhua Shen , Anthony Dick , Anton van den Hengel

We tackle the challenge of Visual Question Answering in multi-image setting for the ISVQA dataset. Traditional VQA tasks have focused on a single-image setting where the target answer is generated from a single image. Image set VQA,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Abhinav Khattar , Aviral Joshi , Har Simrat Singh , Pulkit Goel , Rohit Prakash Barnwal

The segmentation of synthetic aperture radar (SAR) images is a longstanding yet challenging task, not only because of the presence of speckle, but also due to the variations of surface backscattering properties in the images. Tremendous…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Gui-Song Xia , Gang Liu , Wen Yang

Visual Question Answering (VQA) is a complex semantic task requiring both natural language processing and visual recognition. In this paper, we explore whether VQA is solvable when images are captured in a sub-Nyquist compressive paradigm.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Li-Chi Huang , Kuldeep Kulkarni , Anik Jha , Suhas Lohit , Suren Jayasuriya , Pavan Turaga

Significant differences in optical images and Synthetic Aperture Radar (SAR) images are caused by fundamental differences in the physical principles underlying their acquisition by Earth remote sensing platforms. These differences make…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Alexey Borisov , Evgeny Myasnikov , Vladislav Myasnikov

Synthetic Aperture Radar (SAR) image captioning enables scene-level semantic understanding and plays a crucial role in applications such as military intelligence and urban planning, but its development is limited by the scarcity of…

Image and Video Processing · Electrical Eng. & Systems 2025-10-21 Jinqi Zhang , Lamei Zhang , Bin Zou

Visual Question Answering (VQA) is a challenging task that requires systems to provide accurate answers to questions based on image content. Current VQA models struggle with complex questions due to limitations in capturing and integrating…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Peiyuan Chen , Zecheng Zhang , Yiping Dong , Li Zhou , Han Wang

This letter proposes a synthetic aperture radar (SAR) image registration method named Feature-Area Optimization (FAO). First, the traditional area-based optimization model is reconstructed and decomposed into three key but uncertain…

Computer Vision and Pattern Recognition · Computer Science 2016-02-19 Fuqiang Liu , Fukun Bi , Liang Chen , Hao Shi , Wei Liu

Technical reports and articles often contain valuable information in the form of semi-structured data like charts, and figures. Interpreting these and using the information from them is essential for downstream tasks such as question…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Prahitha Movva , Naga Harshita Marupaka

Large Vision-Language Models (LVLMs) have shown remarkable progress in various multimodal tasks, yet they often struggle with complex visual reasoning that requires multi-step inference. To address this limitation, we propose MF-SQ-LLaVA, a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Liu Jing , Amirul Rahman

Speech enhancement plays an essential role in various applications, and the integration of visual information has been demonstrated to bring substantial advantages. However, the majority of current research concentrates on the examination…

Sound · Computer Science 2025-04-03 Xinyuan Qian , Jiaran Gao , Yaodan Zhang , Qiquan Zhang , Hexin Liu , Leibny Paola Garcia , Haizhou Li

Rotated object detection has made significant progress in the optical remote sensing. However, advancements in the Synthetic Aperture Radar (SAR) field are laggard behind, primarily due to the absence of a large-scale dataset. Annotating…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Xin Zhang , Xue Yang , Yuxuan Li , Jian Yang , Ming-Ming Cheng , Xiang Li