Solution of interactive projection edge fusion technology

        What is projection fusion technology?

The projection fusion technology is to overlap the edges of the pictures projected by a group of projectors, and display a brighter, larger, and high-resolution whole picture without gaps through the fusion elimination technology. The effect of the picture is like the picture quality projected by a projector. When two or more projectors are combined to project a picture, some image lights will overlap. The main function of edge fusion technology is to gradually reduce the light brightness of the overlapping part of two projectors to make the brightness of the whole picture consistent.

Projection fusion is a multimedia technology, which is a new technology arising from the development of projection technology. It is usually used in multimedia exhibitions, multimedia equipment in exhibition halls, new products or press conferences. At present, there are many splicing methods in the market, such as LED splicing wall, TV splicing wall, and projection box splicing wall. However, compared with different applications, LED splicing wall and projection box splicing wall are always made of one picture puzzle, which affects the integrity of the picture to some extent. Projection edge fusion technology is a new seamless stitching technology emerging in recent years, which better improves the visual effect of stitching images.

The edge fusion of projection uses a multi-channel large screen display system composed of multiple projectors. The projected image usually has edge lights or overlapping parts, but these visual obstacles are eliminated through the processing of edge fusion software. Compared with the general projection system, it has a larger size, wider field of vision, richer content, and high resolution. The picture effect is like a project projector projection, which has a more powerful and addictive visual effect.

　　 What are the technical methods used for edge fusion of projection?

1. Horizontal arrangement of projectors: the arrangement of multiple projectors can project a wider picture, because people's requirements for vision are getting better and better, which can meet people's needs for ultra clear and beautiful pictures.

2. Vertical arrangement of projectors: compared with horizontal arrangement, vertical stacking is more and more popular, and is widely used in advertisements and activity sites.

3. Stacking of multiple projectors: In many situations, it is necessary to present more beautiful and larger picture effects. At this time, more projectors are needed to stack up large pictures.

The equipment required for projection fusion has been integrated and spliced by multiple projectors:

I Equipment required for projection fusion

1. Screen: the selection of screen is very important. It is necessary to ensure the seamless screen, so as to ensure the perfection of the picture.

2. Projector: The selection of projector is also important. Its picture quality directly affects the display effect. The imported high lumen engineering machine is selected to ensure the stability of the display effect.

3. Soft edge fusion splicing processor: it mainly determines the content and speed of large screen screen display. The quality of the processor plays an important role in the processing speed of signal source, picture clarity, and the quality of soft edge fusion.

4. Signal processing equipment: signal processing equipment mainly includes the conversion of signal source type, signal switching, signal amplification and transmission, etc., which is very important for screen display.

5. Centralized control equipment: it can better manage various equipment, operate control equipment conveniently and quickly, and improve work efficiency and accuracy.

6. Peripheral equipment: including signal source desktop access system, cables, connectors, cabinets, power supply, etc.

　　 2、 Detailed explanation of fusion and splicing process of two projectors

1. Placement of projector: The placement of projector can be determined according to customer needs.

2. Graphics card setting: mainly set the picture fusion band, and the overlapping part of the picture can be realized by video card fusion.

3. Projector point correction: after fusion, use the point correction inside the projector to accurately adjust the picture according to 5X5 or 9X9 and other fine methods.

4. Edge fusion

　　 Difference between soft fusion and hard fusion of projector:

Difference between soft fusion and hard fusion

Software fusion means that the images projected by two or more projectors are processed and fused by combining the computer with the fusion software to show the effect of one projector image.

In principle, there is no difference between hardware fusion and software fusion, mainly in hardware devices. Software fusion is to integrate fusion technology into software and servers. Hardware fusion is to use separate hardware devices to link various projector channels to achieve fusion effect.

　　 How to distinguish between hardware and software fusion devices

1. Generally, the software integration equipment is installed in the industrial control cabinet. In fact, it is a PC with a new waistcoat. You can see that its interface is very similar to that of an ordinary PC. There are several USB interfaces, and even audio interfaces.

2. Software integration can only support limited program applications, while pure hardware integration can play videos of all formats, open any office document, and support all program applications, just like using a monitor.

3. Soft fusion is to expand the picture through multiple display cards.

4. Software integration cannot play HD movies above 6K smoothly

　　 What are the advantages of projection fusion?

1. Increase image size and integrity

The picture projected by multiple projectors will be larger than the picture projected by a single projector. The bright and beautiful picture will bring people extraordinary visual impact, and to a large extent, ensure the perfection of the picture and the consistency of color.

2. Increase resolution

Each projector projects a part of the whole image, so the image resolution is improved. For example, the physical resolution of one projector is 800 * 600. After 25% of the three projectors are fused, the image resolution becomes 2000 * 600.

3. Increase image brightness

When the projection size of one projector is enlarged, the image brightness will be reduced. When multiple projectors with the same brightness are spliced to project images of the same size, the original brightness of the picture can be maintained.

4. Increase resolution

The image processor and computer with multi-channel high-resolution output can generate three or more channels of composite images with 1600 * 1200 pixels per channel. If 25% pixels are fused, the redundant overlapping pixels can be subtracted to produce an image with a resolution of 4000 * 1200. At present, there is no independent display on the market that can operate at such a high resolution. The solution is to use projector matrix. Each projector operates at its large resolution. The resolution after synthesis is the sum of pixels in overlapping areas.

5. Shorten projector projection distance

With the emergence of seamless splicing, the shortening of projection distance becomes inevitable. For example, if the original 200 inch (4000 * 3000mm) screen is required to be free of physical and optical seams, only one projector can be used. Projection distance=lens focal length * screen width. Even if we use a 1.2:1 wide-angle lens, our projection distance is 4.8 meters. Now, after using edge fusion technology, we use four projectors to project images of the same size, The projection distance is only 2.4 meters.

6. Projected image on special shaped screen (such as arc screen/spherical screen)

For example, if you project a picture on a cylindrical or spherical screen, a single projector needs a longer projection distance to cover the entire screen. The combination of multiple projectors shortens the distance because each projector projects a smaller picture.

7. Increase the sense of picture hierarchy

Because of the edge fusion technology, the resolution and brightness of the image are increased. At the same time, with the high-quality projection screen, the sense of hierarchy and expressiveness of the entire display system can be significantly enhanced.

　　 Application of projection edge fusion technology:

1. Utilities and Power

With the acceleration of urbanization, it is increasingly urgent for society to control the whole process of power, tap water and gas industries. Provide solutions with simple maintenance and reliable performance for these industries.

2. Transportation

High resolution video wall is the core of efficient traffic management system. Large screen display is the first choice for timely understanding of traffic conditions to meet the needs of the traffic command center.

3. Radio and television

For broadcast and television operators in the main control room and studio display screens, high-resolution display equipment is required. Such equipment has a stable and reliable structure and can flexibly display multiple images.

4. Security and monitoring

The extreme importance of China's civil security, airport security, school security and computer security in our daily life has become the theme of the times.

5. Network Operation Center

The network operation center has become an important part of ensuring the stable operation of the telecommunications network. Our control center solution allows operators not only to monitor telecommunications activities, but also to interact and analyze in real time.

6. Emergency Operation Center

In disaster early warning and emergency response, the ability to collect intelligence and share information is crucial, so the large screen information display system is also the first choice for command, control and coordination to work quickly and efficiently. The high reliability and maintainability of our fusion system solutions fully meet the needs of the emergency command center.

　　 Price range of projection fusion (For reference only):

Projection soft integration price

1. Projector customized according to demand: 4000-24000/set

2. Fusion software fusion projection: 6000-8000/set

3. Digital content high/standard definition, content and other decisions: 3500 to 6000 per minute

4. Host i7/high-end single display/4G/500G/industrial control cabinet: 6000-8000/set

5. Wire material, video cable, wiring, trunking, etc.: 2000-4000/set

6. Customized metal support: 400-1000/piece

Projection hard fusion price

1. Projector customized according to demand: 4000-24000/set

2. Fusion software fusion projection: 6000-8000/set

3. Host i7/high-end single display/4G/500G/industrial control cabinet: 6000-8000/set

4. Wire material, video cable, wiring, trunking, etc.: 2000-4000/set

5. Customized metal support: 400-1000/piece

6. Number of channels, equipment grade and digital content definition of integrated equipment: 8000-20000/two channels

The above contents are conventional solutions for projection edge fusion technology, and the specific planning solutions should be sorted out in detail according to the actual situation.

Curious Digital Technology always takes advanced technology and innovative ideas as the core power to provide customers with digital showroom multimedia project products and applications for technical exchange and training; Carry out on-site survey and make solutions based on actual project needs and customer needs; One stop services such as collection and sorting of exhibition hall data, software development, scheme customization planning, hardware system integration construction, interactive software development and debugging, film and television production, after-sales maintenance, etc; Sincere cooperation, attentive service, all for your "satisfaction"; To survive with quality and develop with credibility, we are willing to work with you to create a better future!