Essays about: "SAR"

Showing result 1 - 5 of 111 essays containing the word SAR.

  1. 1. Damage Assessment of the 2022 Tongatapu Tsunami : With Remote Sensing

    University essay from KTH/Geoinformatik

    Author : Milton Larsson; [2022]
    Keywords : remote sensing; land cover classification; Sentinel-1; Sentinel-2; change detection; change vector analysis;

    Abstract : The Island of Tongatapu, Tonga, was struck by a tsunami on January 15, 2022. Internet was cut off from the island, which made remote sensing a valuable tool for the assessment of damages. Through land cover classification, change vector analysis and log-ratio image differencing, damages caused by the tsunami were assessed remotely in this thesis. READ MORE

  2. 2. Navigating accountability in humanitarian photography at sea : a snapshot of embedded photographer practices in obtaining informed consent during I/NGO search and rescue operations in the Mediterranean

    University essay from Uppsala universitet/Teologiska institutionen

    Author : Arran Smith; [2022]
    Keywords : humanitarian photography; accountability; informed consent; migration; NGO; INGO; search and rescue; Mediterranean; protection;

    Abstract : This thesis aims to contribute to ethical discussions on the production of photography in different humanitarian contexts, and in circumstances where it is facilitated by non-governmental and international non-governmental organisations (I/NGOs). Humanitarian photography is often reproduced and circulated in various forms by different actors, highlighting the need for research on the actions, decisions, and interactions that influence how these images are produced. READ MORE

  3. 3. Aerial View Image-Goal Localization with Reinforcement Learning

    University essay from Lunds universitet/Matematik LTH

    Author : John Backsund; Anton Samuelsson; [2022]
    Keywords : reinforcement learning; UAV; machine learning; policy gradient; artificial intelligence; reinforce; Technology and Engineering;

    Abstract : With an increased amount and availability of unmanned aerial vehicles (UAVs) and other remote sensing devices (e.g. satellites) we have recently seen an explosion in computer vision methodologies tailored towards processing and understanding aerial view data. READ MORE

  4. 4. Autonomous UAV Path Planning using RSS signals in Search and Rescue Operations

    University essay from Linköpings universitet/Reglerteknik

    Author : Axel Anhammer; Hugo Lundeberg; [2022]
    Keywords : UAV; DQN; Deep Q Network; particle filter; point mass filter; MDP; POMDP; Markov decision process; partially observable Markov decision process;

    Abstract : Unmanned aerial vehicles (UAVs) have emerged as a promising technology in search and rescue operations (SAR). UAVs have the ability to provide more timely localization, thus decreasing the crucial duration of SAR operations. READ MORE

  5. 5. Investigation of Registration Methods for High Resolution SAR-EO Imagery

    University essay from Linköpings universitet/Datorseende

    Author : Niclas Hansson; [2022]
    Keywords : SAR; FFT; MI; Image Registration;

    Abstract : With advancements in space technology, remote sensing applications, and computer vision, significant improvements in the data describing our planet are seen today. Researchers want to gather different kinds of data and perform data fusion techniques between them to increase our understanding of the world. READ MORE