CS766 Project Proposal Image and video dehazing

Outdoor images often suffer from low contrast and limited visibility due to haze, small particles such as dust, mist, and fumes which deflect light from its original course of propagation. Haze has two effects on the image: it weaken the imgage contrast and also adds an additive component to the image, so-called airlight. Recovering a haze-free image can restore the visibility of the scene and correct the color shift caused by the airlight. Furthermore, dehazing can benefit many computer vision algorithms which usually assume that the input image after radiometric calibration is the scene radiance and will suffer from the biased, low contrast scene radiance. Last but not lease, since haze is dependent on the unknow depth information, scene depth estimation is usually a by-product of dehazing and the depth information can be used for other applications.