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FIMD: Fast Isolated Marker Detection for UV-Based Visual Relative Localisation in Agile UAV Swarms

arXiv.org Artificial Intelligence

A novel approach for the fast onboard detection of isolated markers for visual relative localisation of multiple teammates in agile UAV swarms is introduced in this paper. As the detection forms a key component of real-time localisation systems, a three-fold innovation is presented, consisting of an optimised procedure for CPUs, a GPU shader program, and a functionally equivalent FPGA streaming architecture. For the proposed CPU and GPU solutions, the mean processing time per pixel of input camera frames was accelerated by two to three orders of magnitude compared to the \rev{unoptimised state-of-the-art approach}. For the localisation task, the proposed FPGA architecture offered the most significant overall acceleration by minimising the total delay from camera exposure to detection results. Additionally, the proposed solutions were evaluated on various 32-bit and 64-bit embedded platforms to demonstrate their efficiency, as well as their feasibility for applications using low-end UAVs and MAVs. Thus, it has become a crucial enabling technology for agile UAV swarming.


Russia launches barrage of drone strikes across Ukraine

Al Jazeera

How much of Europe's oil still comes from Russia? Russia launched dozens of drones and decoy drones across Ukrainian territory, including one that hit a school building in Kyiv. Marco Rubio says implementing Gaza peace deal is'top priority' for Trump Body of'breadwinner' Thai captive held in Gaza returned home Displaced Palestinians forced to live in Gaza's graveyards


Russia violates NATO airspace in Lithuania amid Putin warning on long-range missiles

FOX News

President Gitanas Nausėda called Russian aircraft incursion into Lithuanian territory a blatant breach of international law as NATO jets responded quickly.


Russian drone kills two Ukrainian journalists on Donetsk eastern front line

Al Jazeera

How much of Europe's oil still comes from Russia? A Russian drone has killed two Ukrainian journalists and wounded another in the eastern Ukrainian city of Kramatorsk, according to their outlet and the regional governor of the Donetsk region. Freedom Media, a state-funded news organisation, said on Thursday that Olena Gramova, 43, and Yevgen Karmazin, 33, had been killed by a Russian Lancet drone while in their car at a petrol station in the industrial city. Another reporter, Alexander Kolychev, was hospitalised after the attack. Freedom Media said that Gramova, a native of Yenakiieve in the Donetsk region, had originally trained as a "finance specialist", but turned to journalism in 2014, the year when Russia annexed Ukraine's Crimean peninsula, and started arming a separatist movement in Donetsk and Luhansk in the Donbas.


Trump, Ukraine and Europe target Russian energy as diplomacy falters

Al Jazeera

How much of Europe's oil still comes from Russia? The European Union is preparing to adopt a new round of sweeping sanctions against Russian energy exports on Thursday, a day after United States President Donald Trump imposed similar measures against Moscow amid setbacks to his efforts at diplomacy with Vladimir Putin. These steps come as Russia and Ukraine are increasingly targeting each other's energy infrastructure in an attempt to make it economically harder to wage war. On the ground, Russia's war in Ukraine remained stagnant. Russia claimed it had taken another handful of villages during the past week - Tykhe and Pishchane in Kharkiv, Novopavlivka, Chunyshyne and Pleshcheyevka in Donetsk, Poltavka in Zaporizhia and Privillia in Dnipropetrovsk. On the whole, however, Ukrainian front lines remained resilient and Russia scored no major breakthrough.


Sudan's Khartoum targeted by RSF drones for third day after airport reopens

Al Jazeera

Sudan's Khartoum targeted by RSF drones for third day after airport reopens The paramilitary Rapid Support Forces (RSF) have targeted Sudan's capital Khartoum and its main airport with drones, a day after the first passenger flight in two years landed in the city amid the civil war. The government-aligned Sudanese Armed Forces (SAF) intercepted the drones on Thursday, which caused no damage, a military official who spoke on condition of anonymity told The Associated Press news agency. The RSF and SAF did not immediately acknowledge the attack. The airport has come under repeated drone attacks blamed on the RSF since Tuesday. Al Jazeera's Hiba Morgan said "both sides seem to be stepping up the use of drones, with the RSF using them here in the capital, Khartoum, to target facilities such as the airport".


Blackouts hit Russia's Belgorod as Ukrainian drone attacks surge

BBC News

Blackouts hit Russia's Belgorod as Ukrainian drone attacks surge Residents of Russia's Belgorod region say blackouts, air-raid sirens and the sound of gunfire aimed at incoming Ukrainian drones are becoming increasingly common, as Kyiv retaliates against repeated bombardments of its cities with cross-border strikes of its own. It's so loud and so terrifying, says Nina, a Belgorod resident who asked us to change her name. I was coming back from the clinic when a siren went off. As usual, I received Telegram alerts about a drone attack. Then bursts of automatic gunfire broke out, I ran into a nearby courtyard and tried to hide under an arch, she recalls.


Bridging Earth and Space: A Survey on HAPS for Non-Terrestrial Networks

arXiv.org Artificial Intelligence

HAPS are emerging as key enablers in the evolution of 6G wireless networks, bridging terrestrial and non-terrestrial infrastructures. Operating in the stratosphere, HAPS can provide wide-area coverage, low-latency, energy-efficient broadband communications with flexible deployment options for diverse applications. This survey delivers a comprehensive overview of HAPS use cases, technologies, and integration strategies within the 6G ecosystem. The roles of HAPS in extending connectivity to underserved regions, supporting dynamic backhauling, enabling massive IoT, and delivering reliable low-latency communications for autonomous and immersive services are discussed. The paper reviews state-of-the-art architectures for terrestrial and non-terrestrial network integration, highlights recent field trials. Furthermore, key enabling technologies such as channel modeling, AI-driven resource allocation, interference control, mobility management, and energy-efficient communications are examined. The paper also outlines open research challenges. By addressing existing gaps in the literature, this survey positions HAPS as a foundational component of globally integrated, resilient, and sustainable 6G networks.


DoorDash Finally Found a Way to Stop Paying Its Workers For Good

Slate

Strap In, It's About to Get Ugly There Are a Few Big Problems With That. The company launched a multimillion-dollar campaign to fight worker protections and invest in delivery robots. Enter your email to receive alerts for this author. You can manage your newsletter subscriptions at any time. You're already subscribed to the aa_Nitish_Pahwa newsletter.


Moment Russian drone strikes near apartments in Ukraine

Al Jazeera

How successful is Ukraine's'gas war' against Russia? How will Putin travel to Hungary with an ICC arrest warrant? How much of Europe's oil still comes from Russia? A bystander filmed the moment a Russian drone struck near an apartment building in Sumy, Ukraine, injuring several people. Russia launched a wave of deadly drone and missile attacks on cities across Ukraine on Tuesday.