Technical Description - FOLSOM ScreenPro SPR-2000 Installation And Operator's Manual

Technical Description

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The ScreenPro High-Resolution Seamless Switcher is a reliable system that simplifies the task of supporting
professional-quality video presentations. The unit combines a video router, two video scalers, and a full-featured
control panel in a single integrated package. ScreenPro
video, component, and computer video sources (640x480 VGA to 1600x1200 UXGA). The input video is converted
directly to the native resolution or "sweet spot" of the projection device to optimize image quality. The operator can
transition seamlessly between eight different input video sources.
A Luminance keying feature gives the ScreenPro
scaler over the other. Applications include overlaying titles, captions and logos over live video. This feature takes the
red, green and blue data from a selected scaler as the "key" or "foreground" and converts it to 8-bits of luminance or
brightness information. This luminance data is compared to a user programmable threshold on a pixel-by-pixel basis.
If the luminance value of a pixel is below the threshold then the pixel data from the background scaler is displayed. If
the luminance value of a pixel exceeds the threshold by 16 counts then the pixel data from the foreground scaler is
displayed. If the luminance value is between the threshold value and threshold value plus sixteen, then a linear mix
is performed between the two scalers. This linear mix prevents small level changes and/or noise from causing
unwanted speckling on the keyed image. The linear mix also allows semi-transparent overlay effects to be
performed. If the overlay luminance value is in the linear mix region it will appear semi transparent (nice effect for
logos).
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The ScreenPro supports two independently buffered main video outputs and one preview video output. The
presentation viewed by the audience is provided via the Main output. The Preview output is provided to allow the
operator to examine the next video source to be displayed. The ScreenPro
intuitive, user-friendly menus to simplify system setup and adjustment. User-defined configuration files can be
created, stored, recalled, and edited. ScreenPro
transition steps. This allows a complete show to be programmed in advance and executed by actuating a single key.
Manual # 26-0002901-00 / Revision H
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has eight universal inputs that accept composite video, s-
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a capability to mix and overlay video graphics from one video
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also has the ability to store a series of up to 64 preprogrammed
ScreenPro - High Resolution Seamless Switcher
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user interface has been designed with
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