ABSTRACT
Before discussing how particular sensors respond to atmospheric conditions and algorithms to
improve the resulting images, let us discuss what is meant by atmosphere.
Atmosphere, whether caused by fog, rain or even smoke, involves the presence of particles in the air. On
a clear day, the particles present which make up ‘‘air,’’ like oxygen, are so small that sensors are not
impaired in their capture of the scene elements. However, this is not true with the presence of
atmospheric conditions like fog, because these particles are larger in size and impede the transmission of
light (electromagnetic radiation) from the object to the sensor through scattering and absorption.
