BI M a nd L a se rSc a nningChris Baze, AIABIM ManagerHawaiian Dredging Construction Company

AIA Honolulu is a Registered Provider with the American Institute ofArchitects Continuing Education Systems. Credit earned oncompletion of this program will be reported to CES Records for AIAmembers. Certificates of Completion are available on request.

This program is registered with the AIA/CES for continuingprofessional education. As such, it does not include content thatmay be deemed or construed to be an approval or endorsement bythe AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.Questions related to specific materials, methods, and serviceswill be addressed at the conclusion of this presentation.

AIA Honolulu is a Registered Provider with the American Institute ofArchitects Continuing Education Systems. Credit earned oncompletion of this program will be reported to CES Records for AIAmembers. Certificates of Completion are available on request.

This program is registered with the AIA/CES for continuingprofessional education. As such, it does not include content thatmay be deemed or construed to be an approval or endorsement bythe AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.Questions related to specific materials, methods, and serviceswill be addressed at the conclusion of this presentation.

Included with Building Suites

3D Reality CaptureActive• Instrument emits own

light (laser)• Line of sight only

Passive• Collects ambient

light (camera)• Only a regular digital

camera needed

Active• Instrument emits own

light (laser)• Line of sight only

Passive• Collects ambient

light (camera)• Only a regular digital

camera needed

Active Reality Capture - LIDAR

Terrestrial Lidar• Phase Shift & Time-of flight lasers• 3-15 min per 360 degree scan• Quantifiable accuracy, tighter than 1/8”• Some have on-board GPS and compass

Leica C10 Time-of-flight Scanner Resolution Camera Resolution ~15 min per scan

Time-of-flight Scanner Resolution Camera Resolution ~15 min per scan

Data ShadowsData Shadows

Multiple Scans

Targets allow meshing of multiple scans No compensator – 3 common targets Compensator -2 common targets

Targets allow meshing of multiple scans No compensator – 3 common targets Compensator -2 common targets

Survey Control

ReCap Registration

Registration

• PointsThe percentage of points which fall less than 6mmfrom the equivalent point in a neighboring scan

• BalanceThe quality of visible features used in registration

• OverlapThe percentage of usable points in the scan thatoverlaps with the current registration group

• PointsThe percentage of points which fall less than 6mmfrom the equivalent point in a neighboring scan

• BalanceThe quality of visible features used in registration

• OverlapThe percentage of usable points in the scan thatoverlaps with the current registration group

Elevation Map

Overhead Clearance Study

Natural/Irregular Surfaces

Heavy/Civil Work

Existing Conditions

Compare Point Cloud to Actual

Floor Remediation

Slab – Before and After

Traditional Surveys

Plan Overlays

Cost Considerations

Survey Control Number of Scans Deliverables needed Space Availability BIM LOD Turnaround time

Survey Control Number of Scans Deliverables needed Space Availability BIM LOD Turnaround time

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