Weak current College】 【have not sewn the concatenation and edge blending differences.

Big-screen mosaic is a general concept, the big-screen mosaic mainly two kinds, one kind is the traditional display wall hard concatenation technology, another is the use of edge integration technology for seamless splicing technology. Display wall hard concatenation technology mainly uses multiple rear projection display wall, such as CRT rear-projection LCD display wall, display wall, rear-projection DLP mosaic wall and plasma display walls, this kind of concatenation technology current mosaic of gap minimum possible 0.5mm because aperture is very small, so we call the "seamless" mosaic, but actually there is a gap, really no gap is the use of images appear seamless integration seamless splicing technology.
With display technology and control technology for continuous integration and development, in the high-end engineering field, by concatenation of the large-screen image display has been widely used, its large screen and multi-screen display and clear, lifelike appearance makes monitoring, security, conferences, simulation, and other areas of work efficiency is greatly improved, while at the same time contributing to the technical level of the industry's rapid progress.

In recent years, as software and hardware technology, seamless splicing technology into a very mature stage, and has been widely used in command and control, virtual simulation and training, industrial manufacturing, design, scientific research and complex decision-making process, in exhibitions, Visual Entertainment, advertising, and other areas of application are also becoming more common.

Is it sew concatenation technology is a special, requires relatively high projection display application, you can implement a multi-screen image fusion, and set the concatenation of gap reduced to a minimum so that the complete heavy match of splicing technology. Is it sew concatenation technology not only need to complete hefty screen, Super projections that the super-size screen projection also have special requirements.

Is it sew concatenation technology development has experienced a pure hardware integration technology, pure software and hardware integration technology and Synergistics three phases.

Pure hardware integration technology through optical shading to fusion image, pure software Fusion is handled via electronic lines to complete the image fusion, hardware integration technology mean both optics fusion processing and electronic fusion.

Because hardware integration can better handle the fusion image of black balance software fusion can better deal with the white balance of the image, the combination of both hardware and software integration technology will be able to compare the perfect realization of partial color image fusion of emergence.

From Mosaic effect, seamless splicing technology has undergone three phases: hard-edged splicing, overlaps splicing and soft edge Fusion splicing.

Hard-edged splicing is clearly split lines (i.e. physical slot), a panoramic view of integration cannot be achieved; overlap concatenation displayed refers to two projectors cast out of the Office of the flattener to image superimposed overlap, but this kind of concatenation obvious flatten Office as brightness overlay, there were light areas of the ills that affect implementation of seamless effect.

Soft edge Fusion splicing through edge integration technology of processing, which implements the full integration of both sides, and eliminate overlaps splicing caused too light areas and soft edge Fusion splicing can adapt to the plane, cylinder, sphere, etc. all kinds of surfaces in the shape of the mosaic, have broader applicability. Soft edge Fusion splicing technology is now mainstream technology, it is the future direction of development.

Soft edge Fusion splicing system is a complex set of system engineering, generally to form a complete set of soft edge Fusion splicing system requires the following equipment.

1. screen: the screen to the audience the most intuitive visual impact, screen selection is critical. First, make sure the screen sheet of seamless, we can ensure the perfect display screen.

2. projector: a projector image quality will have a direct impact on the large screen display effect, also very important, not the slightest slip by. Possible 3-DMD technology projector, ensure good color reproduction. High-end 3-LCD projector can also be used, but in color consistency adjustment, more time consuming.

3. soft edge Fusion splicing processor: soft edge Fusion splicing processor main determining large-screen display of the content and the speed of the processor is good or bad, for the processing of the signal source, picture clarity, soft edge Fusion has quality, should not be underestimated.

4. signal processing equipment: signal processing equipment including signal source type conversion, signal switching, signal amplification and transmission, etc., for large screen display screen is very important.

5. central control equipment: big-screen splicing system equipment, projectors, matrix's number, the number of signal sources are more centralized control devices can better help you quickly address signal select and switch, convenient control equipment operation, rapid increase work efficiency and accuracy.

6. peripherals: peripherals including signal source desktop access systems, cables, connectors, enclosures, power part and so on.