1). Edge integration technology

　　Adopt picture concatenation edge integration technology (soft edge), dispel edge shade, make exactly rejecting and up to and integrating the three-dimensional panoramic result, thus make the persons who observe put into fictitious world physically and mentally ；

2). Technology that green to assemble

　　Make produce misplacing and proportion not distorted of sets of projector picture concatenation, must every green basic aline of projector；

3). Modulate technology in contrast ratio of the whole screen

　　To the system of many passways, it can produce a picture without the one that sews and the same luminance to mix with contrast ratio harmoniously on the edge. Join many sets of projector is it produce one environment of immersing etc. to come , mix Gamma of area is it is it keep one at various kinds of video grade to guarantee to correct, consistency mixed on the edge 。

4). Expand geometry and adjust technology

　　In order to adapt to focus of the arc curved surface screen and geometry adjustment, besides adopting and specially making the scene of adjusting of curved surface geometry on a large scale, need to adopt expanding geometry and adjusting technology, so as to ensure the projector is in the arc screen of large inclination throwing and big camber, making range abundant adjustment, this kind of adjustment ability has been guaranteed in the projection of many passways, picture accuracy of shining upon on the post type screen 。

一、merge the technological principle of the projection in more than passway borders

● Hard side: The border aline of namely two projectors, has not overlapped some. Show the result is shown as the whole picture and sewn together and cut apart to open. If has not strengthened in luminance on the projector edge, this seam shows for being black; If strengthen in luminance on the projector edge, this seam shows for being white 。

● Overlap briefly: Namely the pictures of two projectors overlap partly, but has not entered lightly and faded out from dealing with , overlap some luminance whole pieces of other 2 of part , is it overlap some for first on pair to show as at showing result

● Merge in the border : Compared with the situation that overlap the method briefly , overlap some linear decay of luminance on the right of left projector, overlap some linear increase of luminance on the left of right projector. It is totally unanimous in luminance that shown as the whole picture in showing the result 。

Three passway border merge border , projection of system merge principle picture the following show ：

二、Correct the principle non-linearly and distortedly

　　All projectors act as such a projector and throw the picture on the ball curtain or the such curved screens of ball curtain to the screen of the level in the design, picture can out of shape and distorted, the phenomenon call that non-linear and distorted. For get correct picture show result , must is it punish to go on to the picture at curved screen, this kind of treatment is called it and corrected non-linearly and distortedly 。

三、Correct the principle ladder-shapedly and distortedly

　　Two kinds of methods can realize ladder-shapedly that distorted and correct , a kind of method is corrected through optics, another kind of method is using and correcting technology to realize non-linearly and distortedly ladder-shapedly that distorted and correct 。