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3. Hardware Installation

Program and Source Link Connections

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The following topics are discussed in this section:

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Overview of Edge-Blending Technology Connecting Program and Source Links

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Edge-blending technology is becoming increasingly popular for supporting very large high- resolution displays. The technology is very flexible and supports a wide range of screen configurations. A typical three projector system is illustrated below. As shown in the figure, multiple projectors are used to project on a common surface to create one high-resolution image. The creation of a seamless image requires careful attention to detail. High quality results are dependent upon a system-level approach that integrates content creation, video processing, projector setup and system adjustments as described below.

Adjustable

Image Overlap

Projector #1	Projector #2	Projector #3
Output	Output	Output

Figure 3-9.Typical three projector system

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When projecting an image across a large screen, it is important to maintain sufficient resolution to obtain a crisp, clear image from the perspective of the viewer. Generally, high- resolution source material is used to maintain content that is pleasing to the eye. There are two methods that are commonly used to generate wide-screen source material, each of these methods is explained below.

•Use of a Single High Definition Image

High Definition source material has a resolution of 1920 pixels x 1080 lines. Images of this type can be reformatted to drive multiple screens. The reformatting is usually performed by a seamless switching system such as the Encore Presentation System.

Reformatting allows the resultant images to be processed for providing seamless switching, integration of picture-in-picture video and keying features. Note that the input image can be effectively spread to multiple screens, however, the

98 Encore Presentation System • User’s Guide • Rev 04