Nato members are sending troops, artillery, and air defence systems to secure its eastern flank after what Poland called an unprecedented Russian drone incursion into its airspace. In the early hours of Wednesday, three Russian drones were shot down after crossing into Polish airspace. Other drones crashed to the ground and were later found across eastern Poland. Poland has requested a UN Security Council session about the incident, which will take place on Friday at 19:00 GMT. In response to the drone incursion, the Netherlands and the Czech Republic said they would send defences to Poland, while Lithuania would receive a German brigade and greater warning of Russian attacks on Ukraine that could cross over.

How is Russia replenishing its military? What is a'coalition of the willing'? How China forgot promises and'debts' to Ukraine How are Europe, the US pulling apart on Ukraine? Poland's Prime Minister Donald Tusk has pledged to push ahead with a "great modernisation programme" for his country's military, a day after Polish and NATO forces shot down drones violating the country's airspace during a Russian aerial attack on neighbouring Ukraine. The Polish Air Navigation Services Agency announced on Thursday that Poland had introduced air traffic restrictions along its eastern borders with Belarus and Ukraine.

How is Russia replenishing its military? What is a'coalition of the willing'? How China forgot promises and'debts' to Ukraine How are Europe, the US pulling apart on Ukraine? Russia's Putin hails war advances; Ukraine retakes parts of Donetsk John Psaropoulos is an independent journalist based in Athens and has been Al Jazeera's correspondent in Southeast Europe since 2012. Ukraine reclaimed 62sq km (24sq miles) of territory last month, its commander in chief revealed on Monday, contradicting Russian President Vladimir Putin's recent claim to be advancing "in all directions".

How is Russia replenishing its military? What is a'coalition of the willing'? How China forgot promises and'debts' to Ukraine How are Europe, the US pulling apart on Ukraine? Russian forces launched a "massive" attack across Ukraine, with 415 drones and 40 cruise and ballistic missiles, Ukrainian President Volodmyr Zelenskyy said in a post on X on Wednesday. Ukrainian forces destroyed more than 380 Russian drones, including at least 250 Shahed drones, Zelenskyy added in a later post.

-- This paper presents a methodology to predict metric depth from monocular RGB images and an inertial measurement unit (IMU). T o enable collision avoidance during autonomous flight, prior works either leverage heavy sensors (e.g., LiDARs or stereo cameras) or data-intensive and domain-specific fine-tuning of monocular metric depth estimation methods. In contrast, we propose several lightweight zero-shot rescaling strategies to obtain metric depth from relative depth estimates via the sparse 3D feature map created using a visual-inertial navigation system. These strategies are compared for their accuracy in diverse simulation environments. The best performing approach, which leverages monotonic spline fitting, is deployed in the real-world on a compute-constrained quadrotor . We obtain on-board metric depth estimates at 15 Hz and demonstrate successful collision avoidance after integrating the proposed method with a motion primitives-based planner . I. INTRODUCTION First Person View (FPV) drone pilots leverage a single forward-facing camera video stream transmitted over a radio feed and sensors embedded in the flight controller (e.g., IMU) to aggressively maneuver through dense clutter (e.g., through tree branches, under bridges, etc.).

Bio-inspired design is often used in autonomous UAV navigation due to the capacity of biological systems for flight and obstacle avoidance despite limited sensory and computational capabilities. In particular, honeybees mainly use the sensory input of optic flow, the apparent motion of objects in their visual field, to navigate cluttered environments. In our work, we train a Reinforcement Learning agent to navigate a tunnel with obstacles using only optic flow as sensory input. We inspect the attention patterns of trained agents to determine the regions of optic flow on which they primarily base their motor decisions. We find that agents trained in this way pay most attention to regions of discontinuity in optic flow, as well as regions with large optic flow magnitude. The trained agents appear to navigate a cluttered tunnel by avoiding the obstacles that produce large optic flow, while maintaining a centered position in their environment, which resembles the behavior seen in flying insects. This pattern persists across independently trained agents, which suggests that this could be a good strategy for developing a simple explicit control law for physical UAVs.

This paper introduces SI-EDTL, a two-stage swarm intelligence ensemble deep transfer learning model for detecting multiple vehicles in UAV images. It combines three pre-trained Faster R-CNN feature extractor models (InceptionV3, ResNet50, GoogLeNet) with five transfer classifiers (KNN, SVM, MLP, C4.5, Naïve Bayes), resulting in 15 different base learners. These are aggregated via weighted averaging to classify regions as Car, Van, Truck, Bus, or background. Hyperparameters are optimized with the whale optimization algorithm to balance accuracy, precision, and recall. Implemented in MATLAB R2020b with parallel processing, SI-EDTL outperforms existing methods on the AU-AIR UAV dataset.

How is Russia replenishing its military? What is a'coalition of the willing'? How China forgot promises and'debts' to Ukraine How are Europe, the US pulling apart on Ukraine? Poland has intercepted Russian drones that were flying over its airspace after completing a mission in western Ukraine. It's the first time a NATO member nation has fired shots in Russia's war on Ukraine.

Things to Do in L.A. Tap to enable a layout that focuses on the article. Masslie Arias, of DoorDash, prepares to load a delivery package on a hovering drone on July 31 in Frisco, Texas. This is read by an automated voice. Please report any issues or inconsistencies here . Food delivery app DoorDash is setting its sights on a new destination to test out flying drone deliveries: San Francisco.

Russia's drone incursion into Poland is a test for Nato Wednesday morning's incursion of Russian drones into Polish airspace led to jets being scrambled, an emergency government meeting being called - and concerns that Europe and Nato's resolve against Moscow may not be up to the test. Poland's Prime Minister Donald Tusk said Polish airspace was violated 19 times and at least three drones were shot down by Warsaw's jets, aided by Dutch F-35s and an Italian early warning aircraft. Russia has pushed back against accusations that the incursion was deliberate - though it also stopped short of denying its drones had trespassed sovereign Polish airspace. No objects on Polish territory were planned to be targeted, Moscow said. But European officials have forcefully batted off suggestions the act may have been unintentional. There is no evidence whatsoever that this amount of drones flew over this route over... Polish territory by accident, Germany's Defence Minister Boris Pistorius said, while his Italian counterpart Guido Crosetto called the overnight events in Poland a deliberate attack with the double aim of provoking and testing.