Barco SIM 5H, Owner'S Manual

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7. Advanced
7.7.9 Soft edge
Overview
• Introduction
• Soft edge adjustments
• Accessing the Soft edge menu
• Soft edge edit
• Black level
• Blanking
7.7.9.1 Introduction
What can be done?
When working in a multichannel setup the Soft edge possibilities enable an image blending that gives the appearance of a single
image, thus achieving realistic immersion for the majority of simulation and virtual reality applications.
Image 7-145
Soft edge : purpose
What is the Basic Principal of (electronic) Soft Edge ?
The principle of edge blending is achieved by linear modulation of the light output in the overlap zone so that the light output in that
zone equals the light output of the rest of the image.
Adjustable overlapping area
50%
100%
50%
100%
image 2 image 1
image 2 image 1
Light output per image
Total composite light output
Image 7-146
Soft Edge Basic Principle
Internal versus external (Alpha planes)
The projectors offers 2 methods to achieve soft edging :
1.
Internal soft edges : the contour and shape can be adjusted in the projector using the soft edge edit wizard
2. External Alpha planes : An external fi le is sent to the projector and is memorized. This fi le contains data corresponding to the
shape contour of the soft edge
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