Publication

Detection of Aircrafts on a Collision Course using Spatio-Temporal HOG

Pascal Fua
2013
Reports

Abstract

We have developed a method for the detection of both generic flight neighbouring aircrafts and those on a collision course. Our approach employs a sliding window linear Support Vector Machine (SVM) classifier with a Histogram of Oriented Gradients (HOG) feature representation. An extension of this approach to the spatio-temporal domain is also considered and we demonstrate its advantage for the detection of aircrafts on a collision path. We evaluated our approach for the detection of both small rotorcraft and larger fixed-wing aircrafts in challenging video sequences. Our results show that aircrafts on a collision course can be detected more reliably than when assuming a generic flight path. This is very interesting in practice, since this case is of critical importance. We also show that our spatio-temporal approach improves the detection accuracy with respect to conventional single- frame approaches.

Official source

https://infoscience.epfl.ch/entities/publication/fad6cd30-f5cf-42fe-8fe9-8d662c50dec9

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Pascal Fua
2013
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/fad6cd30-f5cf-42fe-8fe9-8d662c50dec9

About this result

Related concepts (20)

Aircraft

An aircraft (: aircraft) is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or the dynamic lift of an airfoil, or, in a few cases, direct downward thrust from its engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called aviation. The science of aviation, including designing and building aircraft, is called aeronautics.

Aircraft flight dynamics

Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of gravity (cg), known as pitch, roll and yaw. These are collectively known as aircraft attitude, often principally relative to the atmospheric frame in normal flight, but also relative to terrain during takeoff or landing, or when operating at low elevation.

Fixed-wing aircraft

A fixed-wing aircraft is a heavier-than-air flying machine, such as an airplane, which is capable of flight using wings that generate lift caused by the aircraft's forward airspeed and the shape of the wings. Fixed-wing aircraft are distinct from rotary-wing aircraft (in which the wings form a rotor mounted on a spinning shaft or "mast"), and ornithopters (in which the wings flap in a manner similar to that of a bird).

Related publications (1)

Detection of Aircrafts on a Collision Course using Spatio-Temporal HOG

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