current technolgies for reality capture deck
TRANSCRIPT
© 2011 Autodesk ecobuild
Objectives
§ Learn about reality capture and determine which method suites your needs
§ Utilize the following to create geometry for analysis§Satellite & Aerial images with as-builts§3D laser scanning§123D Catch (Photos)§Point Known PKNail Pro (laser range finder direct to Revit)
Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling
© 2011 Autodesk ecobuild
Agenda
§ Brief “What is Rapid Energy Modeling”§ Capture techniques overview§ More Detailed Info on Capture Techniques
Aerial & Satellite Images with as-builts
3D Laser Scanning
123D Catch
PKNail§ Capture Summary
© 2011 Autodesk ecobuild
Why do we need Reality Capture?
§ Rapid Energy Modeling● Determine if a building is a good retrofit candidate● Prioritize retrofit investments● Lifecycle impact● Streamline asset rating
§ Sustainable Retrofits§ Adaptive Re-Use§ Asset Management
Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling
© 2011 Autodesk ecobuild
Satellite Images
Photos
Aerial Images
Laser Distance Meters
capture model analyze
Rapid Energy Modeling
Image from Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling.
© 2011 Autodesk
Comparison of Capture Techniques
Image adjusted from Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling.
4.5
L M H
Granularity of captured data on existing conditions
1
Low High
Expertise required for reality capture (assumes building modeling and energy analysis expertise already exists)
Laser Scan
Photos
Laser Measure
Satellite Images
Aerial Images
Plans and Scale
Measuring Tape and
Wheel
Legend
5
3.0
3.02.5
Ideal Scenario
1.52.0
Non-ideal Scenario
rapid energy modeling workflows
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10
© 2011 Autodesk ecobuild
Considerations
§ Size and complexity of the project§ Interior/exterior§ Deadlines and time constraints§ Budget and available resources§ Frequency of existing building work§ Multiple uses for model
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10
© 2011 Autodesk ecobuild
Aerial & Satellite Imageswith As-builts
Aerial Images
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10
© 2011 Autodesk ecobuild
Aerial and Satellite Image
Pros§ Quickly get 3D geometry§ Do not need to be onsite§ Not expensive
Cons§ Accuracy is based on user§ As-built drawings may not be accurate§ May need more information from FM
© 2011 Autodesk ecobuild
3D Laser Scanning
4.5
Laser Scan
Disclaimer: The following costs may vary depending on who is doing the scanning and the project. These are based on a case study.
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10
© 2011 Autodesk ecobuild
Converting Point Cloud to Revit
Import point cloud directly into Revit 20121. Trace over geometry yourself2. Use Scan-to-BIM or similar add-in to help
create geometry
© 2011 Autodesk ecobuild
3D Laser Scanning
Factors driving cost§ Time for scan§ Photos§ Building complexity§ Detail Level
© 2011 Autodesk ecobuild
3D Laser Scanning – When to Use
§ Complex, large buildings§ Limited time and resources§ Accuracy is important§ Rapidly advancing
© 2011 Autodesk ecobuild
123D Catch
Photos2.0
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10
© 2011 Autodesk ecobuild
123D Catch
Source Photos
Internet
Source Photos (jpeg or tif)
Photo Scene (3dp)
123D Catch Servers in the
cloud
Save (3dp)
Export(dwg, obj…etc)
© 2011 Autodesk ecobuild
123D Catch – Shooting the Right Pictures
Textured objects are preferred§ Avoid shiny, texture-less, and transparent objects§ Avoid white walls
Shiny Dusseldorf Buildinghttp://www.originallight.com/galleries/abstract/shiny_dusseldorf_building
TOO SHINY
WHITE WALLS
Seasonal Home Decoration Bloghttp://www.seasonalhomedecoration.com/apartment-with-light-wood-floors-painted-white-walls/
TRANSPARENT
Jet Settahttp://jetsetta.com/travel/origami-like-glass-building-spain/
© 2011 Autodesk ecobuild
123D Catch – Shooting the Right Pictures
§ Shoot around corners so that you find matches between adjacent sides.§ Rotate around the subject. Do not pan in front of it.
§ Wide angle lens
Object ObjectGOOD
RotatingBAD
Panning
© 2011 Autodesk ecobuild
123D Catch – When NOT to use
§ Very large, complex buildings§ Interior§ Buildings in densely populated areas§ Areas that have a lot of shadows§ White buildings§ All glass buildings
© 2011 Autodesk ecobuild
123D Catch – When to use
§Small Buildings§Open sites§A lot of daylight§Exterior of building
© 2011 Autodesk ecobuild
Laser Distance MeasurementsPKNail Pro
Laser Measure
3.0
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10
© 2011 Autodesk ecobuild
PKNail Pro – Controls Send Data
1. Press once = Build Wall2. Press twice = Build (Enter/OK)3. Toggle Selection (Wall angle)
1. Press once = Build Wall2. Press twice = Undo last command
Build WindowBuild Door
© 2011 Autodesk ecobuild
PKNail Pro – Autodesk (Waltham)
§ Exterior Shell§ 4 hours§ 60,000 SF§ < $0.01/SF
© 2011 Autodesk ecobuild
PKNail Pro – When to Use
§ Interior spaces § Exterior§ Repetitive and no as-builts§ Budget§ Accessibility§ Can Combine with Other Methods
© 2011 Autodesk ecobuild
Summary
Disclaimer: The following costs may vary, they are based on a case studies.
© 2011 Autodesk ecobuild
Comparison of Capture Techniques
Pay for service Free or minimalCosts of time
123D CATCH
$3400 Initial+yearly feePayback ~2 projectsCost of time
NONE* 1 week 1-2 weeks 1-2 weeks
YES NO YES YES
2-4 days
Clear viewHigher detail levelMay need full day of scanning to get pricing
May need info from FM
Clear view May need info from FM
YES NO YES NO
PKNAILAERIAL & SATELLITE
IMAGES
3D LASER SCANNING
Free Costs of time
COST
TRAINING
ONSITE
REDRAWING
ADDITONAL INFO
TIME (CAPTURE-MODEL)
ONSITE
© 2011 Autodesk ecobuild
In Summary…
Aerial & Satellite Affordable, quick and dirtyAs Builts
PKNail Affordable, builds model live with good accuracy
123D Catch Affordable, can work well for exterior with high detail level
3D Laser Scan Expensive, quick and high detail level
© 2011 Autodesk ecobuild
Considerations
§ Size and complexity of the project§ Interior/Exterior§ Deadlines and time constraints§ Budget and available resources§ Frequency of existing building work§ Multiple uses for model
Make a wish list and prioritize what you need/want! Image adjusted from Streamlining Energy Analysis of Existing
Buildings with Rapid Energy Modeling.
4.5
Laser Scan
Photos
Laser Measure
Satellite Images
Aerial Images
Plans and ScaleMeasuring
Tape and Wheel 3.0
3.02.5
Ideal Scenar
io1.52.0
Non-ideal Scenario
rapid energy modeling workflows
Expensive
Cost Effective
0
1
2
3
4
5
6
7
8
9
10
Slow Rapid0 1 2 3 4 5 6 7 8 9 10