Foggy image–sharpening method with multi-channel polarization information system

This article aims to reduce the influence of heavy fog on the outdoor imaging equipment and to maximally improve the foggy image resolution. It is known that reflected light of the object includes the abundant target polarization information. The foggy image can be restored by these information of the target and the airlight. Therefore, this article introduces a multi-channel polarization information system and defogging algorithm accordingly. The polarization information system provides a necessary solution for the accurate application of a specific algorithm, since it can ensure the accuracy of acquired image information. The key point of the proposed algorithm lies in accurately estimating the parameters in the polarization defogging model. Based on the normal threshold distribution comparison, it can avoid the highlight portion of the non-sky area in the image and accurately estimate the airlight intensity at infinite distance so as to effectively reduce the color distortion of the bright area. The median filtering algorithm is used to obtain the airlight degree of polarization by using three obtained polarization scenes. At last, this article analyzes the experimental results through defogging evaluation indexes and compared the result obtained by this algorithm with others.

Stopping power ,Z_1^3- Parameter, Bloch and shell corrections in Bethe formula for protons and Helium ions in DNA and liquid water.

The Barkas effect came because of target electrons due to responding to the approaching particle and slightly changing the orbits before occur from interaction of energy loss (denominate target polarization). At high energies (above 20 10 insignificant because the ion moving too fast to cause initial motion the target electrons where at low energies the Barkas effect is investigated.[1].In present work stopping power, Barkas effects, Bloch and shell corrections have been investigated for the interaction of protons and Helium ions in DNA and liquid water. Braggs rule has been used on each element in DNA and liquid water to determine the parameters correction in Bethe-Bloch formula using Ziegler’s semi-empirical formula [1].