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Current Technolgies For Reality Capture Deck

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Summary of existing technologies to capture existing buildings digitally and using them inside of a BIM platform and/or energy modeling tools. Laser scanning, 123D Catch, PKNail, and satellite imagery.

It is a shorter version of the deck used/created by Jess Miller at Autodesk University, 2011.

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Current Technolgies For Reality Capture Deck

  1. 1. Current Technologies for Reality CaptureJim FosterPointKnownjfoster@pointknown.com@pointknown © 2011 Autodesk
  2. 2. 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 Modelingecobuild © 2011 Autodesk
  3. 3. 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 Summaryecobuild © 2011 Autodesk
  4. 4. 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 Modelingecobuild © 2011 Autodesk
  5. 5. Rapid Energy Modeling Satellite Images Photos Aerial Images Laser Distance Meters capture model analyze Image from Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling.ecobuild © 2011 Autodesk
  6. 6. Captureecobuild © 2011 Autodesk
  7. 7. Comparison of Capture Techniques Cost Effective Aerial Images Ideal Photos Scenario 2. 1.5 Plans and Satellite Legend 0 Scale 3.0 Images Expertise required 9 4 2. Laser rapid energy for reality capture Measuring 5 modeling (assumes building L M H Measure Tape and 3.0 modeling and 8 workflows 3 Wheel energy analysis Slow 0 1 2 3 4 5 6 7 Rapid expertise already 7 2 8 9 10 exists) 5 1 Laser Scan 1 6 Low High 4.5 10 Granularity of 0 5 captured data on existing conditions Non-ideal Scenario Expensive Image adjusted from Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling. © 2011 Autodesk
  8. 8. Considerations Cost Effective § Size and complexity of the project § Interior/exterior 9 4 § Deadlines and time constraints 8 3 § Budget and available resources Slow 0 1 2 3 4 5 6 7 Rapid 7 2 8 9 10 § Frequency of existing building work § Multiple uses for model 1 6 10 0 5 Expensiveecobuild © 2011 Autodesk
  9. 9. Cost Effective Aerial Images 9 4 Aerial & Satellite Images 8 3 Slow 0 1 2 3 4 5 6 7 Rapid with As-builts 7 2 8 9 10 1 6 10 0 5 Expensiveecobuild © 2011 Autodesk
  10. 10. Aerial and Satellite Image STEP 2 STEP 1 STEP 3*ecobuild © 2011 Autodesk
  11. 11. 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 FMecobuild © 2011 Autodesk
  12. 12. Cost Effective 9 4 3D Laser Scanning 8 3 Slow 0 1 2 3 4 5 6 7 Rapid 7 2 8 9 10 1 Laser Scan 6 4.5 10 0 5 Expensive Disclaimer: The following costs may vary depending on who is doing the scanning and the project. These are based on a case study.ecobuild © 2011 Autodesk
  13. 13. 3D Laser Scanning – What is it?ecobuild © 2011 Autodesk
  14. 14. 3D Laser Scanning – Design Model vs. Energy Modelecobuild © 2011 Autodesk
  15. 15. Converting Point Cloud to Revit Import point cloud directly into Revit 2012 1. Trace over geometry yourself 2. Use Scan-to-BIM or similar add-in to help create geometryecobuild © 2011 Autodesk
  16. 16. 3D Laser Scanning Factors driving cost § Time for scan § Photos § Building complexity § Detail Levelecobuild © 2011 Autodesk
  17. 17. 3D Laser Scanning – When to Use § Complex, large buildings § Limited time and resources § Accuracy is important § Rapidly advancingecobuild © 2011 Autodesk
  18. 18. Cost Effective Photos 2. 0 9 4 8 3 123D Catch Slow 0 1 2 3 4 5 6 7 Rapid 7 2 8 9 10 1 6 10 0 5 Expensiveecobuild © 2011 Autodesk
  19. 19. 123D Catch Source Photos (jpeg or tif) 123D Catch Servers in the cloud Source Internet Photos Photo Scene (3dp) Save Export (3dp) (dwg, obj…etc)ecobuild © 2011 Autodesk
  20. 20. 123D Catch – Shooting the Right Pictures WHITE WALLS Textured objects are preferred § Avoid shiny, texture-less, and transparent objects § Avoid white walls TOO SHINY TRANSPARENT Seasonal Home Decoration Blog http://www.seasonalhomedecoration.com/apartmen t-with-light-wood-floors-painted-white-walls/ Shiny Dusseldorf Building http://www.originallight.com/galleries/abstract/shiny Jet Setta _dusseldorf_building http://jetsetta.com/travel/origami-like-glass- building-spain/ecobuild © 2011 Autodesk
  21. 21. 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 BAD GOOD Object Object Rotating Panningecobuild © 2011 Autodesk
  22. 22. 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 buildingsecobuild © 2011 Autodesk
  23. 23. 123D Catch – When to use §Small Buildings §Open sites §A lot of daylight §Exterior of buildingecobuild © 2011 Autodesk
  24. 24. Cost Effective 3.0 9 4 Laser Measure Laser Distance 8 3 Slow 0 1 2 3 4 5 6 7 Rapid Measurements 7 2 8 9 10 PKNail Pro 1 6 10 0 5 Expensiveecobuild © 2011 Autodesk
  25. 25. Send Data PKNail Pro BuildControls – Window Build Door 1. Press once = Build Wall 2. Press twice = Build (Enter/OK)1. Press once = Build Wall 3. Toggle Selection (Wall angle)2. Press twice = Undo last command ecobuild © 2011 Autodesk
  26. 26. PKNail Proecobuild © 2011 Autodesk
  27. 27. PKNail Pro – TROJB § Exterior Shell § 1.5 day § 80,000 SF § < $0.01/SFecobuild © 2011 Autodesk
  28. 28. PKNail Pro – Autodesk (Waltham) § Exterior Shell § 4 hours § 60,000 SF § < $0.01/SFecobuild © 2011 Autodesk
  29. 29. PKNail Pro – When to Use § Interior spaces § Exterior § Repetitive and no as-builts § Budget § Accessibility § Can Combine with Other Methodsecobuild © 2011 Autodesk
  30. 30. Summary Disclaimer: The following costs may vary, they are based on a case studies.ecobuild © 2011 Autodesk
  31. 31. Comparison of Capture Techniques 3D LASER AERIAL & 123D CATCH PKNAIL SCANNING SATELLITE IMAGESCOST Pay for service Free or minimal Free $3400 Initial+yearly fee Costs of time Costs of time Payback ~2 projects Cost of timeTRAINING NONE* 1 week 1-2 weeks 1-2 weeksONSITE YES NO YES YESREDRAWING YES NO YES NOADDITONAL Clear view May need Clear view May needINFO Higher detail level info from FM info from FM May need full day of scanning to get pricingTIME(CAPTURE-MODEL) 2-4 daysecobuild © 2011 Autodesk
  32. 32. In Summary… Aerial & Satellite Affordable, quick and dirty As 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 levelecobuild © 2011 Autodesk
  33. 33. Considerations Cost Effective Aerial Images Ideal § Size and complexity of the project Photos 2. 1.5 Scenar Satellite io Plans and 0 § Interior/Exterior 9 3.0 Images 4 Scale Measuring 2. Laser rapid energy § Deadlines and time constraints Tape and 5 modeling 8 Measure 3 Wheel 3.0 workflows § Budget and available resources Slow 0 1 2 3 4 5 6 7 Rapid 7 2 8 9 10 § Frequency of existing building work 1 6 § Multiple uses for model Laser Scan 4.5 10 0 5 Non-ideal Scenario Expensive Make a wish list and prioritize what you need/want! Image adjusted from Streamlining Energy Analysis of Existing Buildings with Rapid Energy Modeling.ecobuild © 2011 Autodesk
  34. 34. Analyzeecobuild © 2011 Autodesk

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