Image fusion for a target sightseeing system of armored vehicles

Abstract

Исследование кинематики рабочего органа трала во время движения по минному полю с неровностями Р.А. Нанивский, А.В. Емельянов В статье предложена модифицированная конструкция рабочего органа трала. Она относительно проста в комплектации, повышает не только его живучесть, но и при необходимости позволяет проводить замену наиболее уязвимого его элементарабочего диска. Конструкция рабочего органа трала в виде U-образного коромысла с двумя рабочими дисками дает возможность эффективно эксплуатировать трал даже в случаях, когда один из рабочих дисков вышел из строя.Описана кинематика основных частей рабочего органа для случая движения тральщика вдоль минного поля с неровностями с постоянной скоростью. Получены аналитические зависимости, определяющие основные параметры движения как самого U-образного рычага, так и рабочего диска.Ключевые слова: минный трал, рабочий диск, кинематические параметры движения элементов трала. Research of kinematics of the working body of the trawl while driving on a minefield with irregularities R. Nanivskyi, A. YemelianovDuring combat operations, troops increasingly use mine barriers (minefields) to get protection against sudden offensive or penetration of enemy sabotage groups. The safest and at the same time the fastest way of their clearance or breaching for military equipment and personnel is demining of areas or individual sections by means of mine trawls. The experience of their application shows a number of existing problems, which reduce the efficiency of their use during breaching a minefield. First and foremost, it's the low maneuverability of the minesweeper because of the large dimensions of the trawl and the lack of "survivability" of the individual trawl elements. This paper is devoted to the partial solution of this problem, namely increasing the maneuverability of mine trawl by modernizing trawl working point. The article proposes a modified design of the trawl working body, which is much simpler than the existing, that in turn allows the minesweeper to demonstrate higher maneuverability. The proposed design of the trawl working body in the form of a U-shaped rocker with two working disks makes it possible to efficiently operate the trawl, even in cases where one of the working disks has been out of order.The paper describes the kinematics of the main parts of the working body for the case of the minesweeper's movement through the minefield, taking into account the unevenness of the varied terrain with a constant speed. The analytical dependences are obtained, which determine the basic movement parameters as of the U-shaped rocker of the working disk. By their analysis it is established: depending on the magnitude of the unevenness' lifting angles of the mine trawl during running of the working disk over it, the U-shaped rocker can rotate around its axis in both directions (clockwise and anticlockwise), which means that the pressure force on the surface of the soil from the side of the second trawl disk can either grow or fall. As far as the working disk is concerned, it is ...

Dynamic fusion of images from the visible and infrared channels of sightseeing system by complex matrix formalism

“…The faces of people and/or objects hidden in their bags are hard to see in the images fused in the field of real and complex scalars. This result is consistent with the conclusion drawn in [27] that the contrast of the image, fused by the algorithm of weight addition is always worse than the contrast of one of the input images.…”

Jones formalism for image fusion

“…[13,14] that the contrast doubles for the phase image obtained with a so-called complex scalar-function image fusion (SCFIF) method. On the contrary, the contrast becomes zero (i.e., a target becomes invisible) in the frame of the scalaraddition fusion method whenever the target has the contrasts which are equal in the absolute values but opposite in the signs in its partial Vis and IR images [19]. The same advantage is preserved when we pass to the complex-vector field in the framework of our CVIF method.…”

“…As a consequence, scalar summation of the partial images u and  would lead to significant lowering or even vanishing of the contrast of target in the fused image [19]. For this reason, the image fusion based on the addition in the field of real scalars is, at least, not desirable for the multimodal partial images [13,14].…”