Fusion splicing

Edge seamless integration of technology systems is a special, relatively high requirements of the projection display applications, multi-screen images can be achieved together, and spliced so as to minimize the gap completely overlap splicing technology. Seamless splicing technology requires not only complete the super-sharp screen, the large size of the projection screen projection is also used in special requirements. Edge seamless integration of technology systems usually constitute the following four types of technology.

1, the edge of fusion technology

Image mosaic using the edge of fusion technology (soft edge), the elimination of the edge of the shadow, so that the entire screen view to achieve the integration of three-dimensional effect, so that observations were dedicated to the virtual world;

2, the Green Convergence Technology

Projector so that multiple image mosaic and the proportion of dislocation does not produce distortion, it is necessary to each of the green projector alignment benchmark;

3, full-screen contrast modulation

For multi-channel system, the edge of tuning can be mixed and contrast to produce a seamless image and the same brightness. Thus adding more than one projector to produce an immersive environment, a mixed region of Gamma correction to ensure the maintenance of a video in a variety of levels, the edge of mixed consistency.

4, adjusted geometric expansion of technology

In order to meet the arc curved screen to adjust the focus and geometry, with the exception of the use of special large-scale adjustment of the lens surface geometry, but also need to adjust the geometric expansion of technology, to ensure that the projector in the projection angle and the arc of curvature of the screen, so the scope of adequate adjustments to ensure that the capacity of the multi-channel projection, mapped to the columnar screen image accuracy.

Seamless integration of the edge of the working principle

Seamless integration of the edge of the working principle of the system is divided into four categories: multi-channel projection technology edge integration theory, three-channel projection system integration of the edge of the edge integration theory, the principle of non-linear distortion correction, the principle of trapezoidal distortion correction. We turn next to the edge of the main analysis of multi-channel projection technology integration principle, three-channel projection system the edge of the edge of the integration principle of the case of integration.

First, integration of multi-channel fringe projection technique

One edge of the integration of multi-channel projection technology has gone through three stages of development: hard-edged splicing, overlapping the edge of splicing and fusion splicing.

◎ hard-edged: that is, two projector edge-aligned, non-overlapping parts. Show the effect on performance for the whole screen to be separated joints together. If the projector brightness enhanced to deal with the edge of making the joints appear as black; if the projector so the brightness of the edge enhancement processing, the joints appear as white.

◎ simple overlap: that is, two projector images overlap, but did not make light out into the deal, so the brightness of overlap for the whole rest of the 2-fold effect on the performance of the show for the overlapping part of a bright Article

◎ edge integration: with the simple overlap method, the left overlapping the right side of projector brightness part of the linear attenuation, the right overlapping the left side of the projector part of the linear increase in brightness. Effect on the performance of the show for the whole scene exactly the same brightness