IEEE Trans Image Process - An investigation of dehazing effects on image and video coding.

Tópicos

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Resumo

This paper makes an investigation of the dehazing effects on image and video coding for surveillance systems. The goal is to achieve good dehazed images and videos at the receiver while sustaining low bitrates (using compression) in the transmission pipeline. At first, this paper proposes a novel method for single-image dehazing, which is used for the investigation. It operates at a faster speed than current methods and can avoid halo effects by using the median operation. We then consider the dehazing effects in compression by investigating the coding artifacts and motion estimation in cases of applying any dehazing method before or after compression. We conclude that better dehazing performance with fewer artifacts and better coding efficiency is achieved when the dehazing is applied before compression. Simulations for Joint Photographers Expert Group images in addition to subjective and objective tests with H.264 compressed sequences validate our conclusion.

Resumo Limpo

paper make investig dehaz effect imag video code surveil system goal achiev good dehaz imag video receiv sustain low bitrat use compress transmiss pipelin first paper propos novel method singleimag dehaz use investig oper faster speed current method can avoid halo effect use median oper consid dehaz effect compress investig code artifact motion estim case appli dehaz method compress conclud better dehaz perform fewer artifact better code effici achiev dehaz appli compress simul joint photograph expert group imag addit subject object test h compress sequenc valid conclus

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