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Laser Scanning 101: Introduction
LiDAR…used to create point clouds
3d measurement for a 3d world
What is Laser Scanning?
Point Clouds--Advantages
Comprehensive
Non-Contact
Distance
Accurate
Fast!
Updateable
Software integration
Proven
Photogrammetry
Total station
Penetrating
Metrology
Limitations Include:
• Line of sight
• Distance
• Scanning/Processing techniques
• Material being scanned
• Angle of incidence
• Type of scanner
• Instrument calibration
Laser Scanning…It’s Not…
What’s the Goal/Objective?
Laser Scanning Platforms
Nothing is built per the plan--100% failure rate
Human error in construction
Poor design
Scheduling pressure
Problematic/inexperienced owner
Competing objectives—trade labor
Financing issues
Change orders
Rework issues
Laser Scanning—Driving Market Factors
Adoption & Current Users
Adoption remains incredibly low
Current market includes:• A/E/C Industry…driven by architects & GC’s• Oil/gas• MEP• $100m+ renovation projects• Automotive• Surveyors• Government—civil• Youth..!
Almost exclusively used in renovation/retrofit projects…
Extremely low implementation in new build/construction markets
Diffusion of Technology CurveDr. Everett Rogers
LABOR
• Planning• Engineering/design• Building--construction
Laser Scanning Ultimate Driving Force…SAVINGS!
MATERIAL
• Aggregate/concrete• Steel• MEP• Drywall• Building envelope• Finish carpentry
Return On Investment
Case Study Examples
Scan Data = 2d Deliverables
Scan Data = Site Work Deliverables
Scan Data = Civil/Topo Example
Scan Data = Topo
Scan Data = Floor Flatness
Scan Data = Topography Report
Scan Data = Building Envelope & Prefabrication
Scan Data = Pre-installation Design Conflict
Deviations
Scan Data = Fabrication to Existing Conditions
Scan Data = Quality Control
Validation of the deck edge
Scan Data = Accurate As-Built Conditions
Scan Data = Leasable SF
Scan Data = 3d Models
Laser Scanning and Pre-Fabrication
Other Important Stuff
How Much Does it Cost?
Capture the Subject = 10-20%
Creating the Deliverable = 80-90%
When to Bring Scanning In-House (Self Perform)
Recurring needs/demand
• Changing/evolving environment
Ability to process—create usable deliverables
Costs associated are fully understood
• Scanner
• Software
• Calibration
• Training
Less expensive than a service provider
Laser Scanning—Service Provider Selection
Picking a service provider…
• Experience in the specific market/project type
• Outsourcing the deliverables [good/bad]
• Insurance
• Scheduling
• Consultation/coaching--implementation
• Full disclosure (who’s doing the work)
• Price is NOT as important at VALUE
“Best” Hardware/Software
Buyer beware…
• Trust but verify
• Know your goal(s)
• Actual costs
• Evolution
• Small guys
• Golf clubs and golfers…
The Future…
Trade labor shortage will drive
VR/AR !
Indoor mobile scanners
Lower cost software
Easier to create deliverables
Owners demand more
Prefabrication
Lien building practices will lead
New construction QA/QC
