7. Advanced
7.9.9 Soft edge
Overview
• Introduction
• Soft edge adjustments
• Accessing the Soft edge menu
• Soft edge edit
•Blacklevel
• Blanking
7.9.9.1 Introduction
What can be done?
When working in a multichannel setup the Soft edge feature enables 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 7-169
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 2image 1
image 2image 1
Light output per image
Total composite light output
Image 7-170
Soft Edge Basic Principle
Internal versus external (Alpha
planes)
The projector 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 file is sent to the projector and is memorized. This file contains data corresponding to the
shape contour of the soft edge
R59770324 SIM 5W 22/12/2011
145
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