Post on 21-Jan-2017
transcript
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Creative Video Wall Processing
Paul StreffonTraining Manager
tvONEpaul.streffon@tvone.com
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Course Description• We’ll explore how to design and create video
walls for various applications with consideration on wall sizes, types of displays and combining different sizes of displays. The challenges of creative video walls, such as design using a variety of digital and analog signals and exploring adjustment for screen size, resolution and angle will also be discussed, in addition, various examples will be given and the process to consider when building video walls.
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Agenda• Terminology• Types of walls• Examples of installations• Method for planning video walls• CORIOmaster tour and examples
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Single Screen - Multiple Windows
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Multiple Screens – Single Image
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Multiple Screens – Multiple Windows
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Some Terminology
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Screen Size• The size of the physical display• Bezel or Moulin • Image size
Screen Size
Bezel Size
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Native Resolution• The preferred display resolution settings
of the display• EDID determined• It is better if the display does not have to
scale
What resolutions can your monitor display?
Which one is best?
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Window• A container• Input or source• Border• Size• Place or position• Rotation• Aspect ratio• Transition• Etc.
Windows
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Mixer• Combines two or more images• Cross fade• Picture in picture
X-over orS-curve
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Scaler• Up convert• Down convert• Cross convert
720x480
720x480
1920x1080
1920x1080
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Image Size / Position / Place• Constrained or unconstrained• Left to right• Top to bottom
Top
LeftWidth
Height
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Cropping • Trims the edges from an image
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Shifting / Panning• Moves the image within a crop
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Layers• Background• Foreground
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Key (Logo)• Alpha• Luminance• Chroma
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Border• Transparency• Size• Color• Edge
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Video Wall
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Canvas
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Edge Blending• Multiple projectors displaying a single
continuous image
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Edge Blending
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Presets• A destination• What the
screen will look like • Size, position,
rotation, aspect, and placement of windows on the screen
• Any attribute setting of the windows, such as border color
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Transitions• Cut• Fade / Dissolve• Wipe• Horizontal
shrink/grow• Vertical
shrink/grow• Spin
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Timelines
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Time To Process
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Deployment Types
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Square
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Non-Square (not 16:9)
Viasat HQ - Denmark
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Non-Square
The CBS Atlanta (WGCL-TV) studio features a stunning city scape video wall powered by CORIOmaster.
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Square & Non-Square Together
CORIOmaster powers the KSL-TV Utah news studio with video walls and a video belt.
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Video Columns
CNN use the CORIOmaster mini systems to feed video to their creative video columns.
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Video Columns
Autodesk use CORIOmaster mini to creative video pillars.
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Mix Screen Orientations
Horizontal & Landscape displays for a window view at an exhibition.
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Screen & Source Rotation
Technology Exposed Exhibition
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Mixed Screen Specifications
Netherlands AV Exhibition
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Scatter Walls
Technology Exposed Exhibition
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Scatter Walls
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Edge Blended
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Edge Blended
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Mixing Projectors & Displays
InfoComm Brazil exhibition stand
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Mixing Projectors & Displays
The Cube, Queensland University of Technology
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Mixing Projectors & Displays
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LED Walls
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Building Blocks• Destinations• Physical outputs• Sources• Physical inputs• Windows• Virtual video maps• Canvas• The work area within the software
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Video Wall Processor Block
Input Modules4K (UHQ)
DVI-U*HDBaseT*3G-SDI*HD-SDI*
*EHQ, HQ or PV
20 Backplane
Scalers
Allocation:UHQ (4)EHQ(2)HQ(1)PV(0)
Canvas Design
Canvas 1600 Megapixels
Canvas 2 600 Megapixels
Canvas 3600 Megapixels
Canvas 4600 Megapixels
Output Modules
4KDVI-U
HDBaseT3G-SDI
Sources Displays
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Monitor Layout
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Video Sources
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Window Layouts
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LED Walls• What makes an
LED work?
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LED Pixel Density
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LED Walls Block Configuration
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LED Total Pixel Count
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Original Video Content• 1920x1080
pixels
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Desired LED Video Display• 125x104 pixels
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Pixel Perfect Video Processing
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LED Output
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Let’s Call It UHD• What is 4K• Compare to 1080• Dense Pixels• Text Size• How Close
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Greater Pixel Density• Higher density
of pixels• Smaller
computer text• Can I see the
difference?
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Smaller Computer Text• Higher density
of pixels• Smaller
computer text• Can I see the
difference?
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Can I See The Difference?• What can I see normally?• 20/20 or 6/6• 1 minute of arc• Viewing distance to pixel height - 3428:1
• Higher density of pixels• Smaller
computer text• Can I see the
difference?
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How Close Are Your Viewers?
• Higher density of pixels• Smaller
computer text• Can I see the
difference?
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20 40 60 80 100 120 140 160 1800
5
10
15
20
25
Max Viewing Distance to See Pixels
1080 Distance UHQ Distance
Screen Diagonal in Inches
Dist
ance
in F
eet
Viewing Distance To Screen
• Higher density of pixels• Smaller
computer text• Can I see the
difference?
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High Density LED Wall
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LED Pixels vs. Source Pixels
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LED to Source Aspect Ratios
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LED Ribbon Layout
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Good 4K Application
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Worksheet Review• Weblink• bit.ly/1MRliLH http://bit.ly/1MRliLH