collection of crash scene evidence by bryon o'neil
TRANSCRIPT
Deputy Bryon O’NeilClackamas County Sheriff ’s [email protected] (Cell)
My Experience Hired by Clackamas County Sheriff ’s Office in 2006
Completed IPTM Reconstruction Courses in 2010
Full Time Reconstructionist since February 2014
Collected Evidence 25 Crash Scenes
10 Crime Scenes
Previous Experience with Total Station/Hand Measure
Bought the FARO X330 in March 2014
Scanned 19 Crash Scenes
6 Crime Scenes
Equipment
Settings
Resolution : The resulting scan resolution. You can select from1/1, 1/2, 1/4,1/5, 1/8, 1/10, 1/16, 1/20 and 1/32 by using the slider.
Quality: Controls the rate of data capture. Quality (noise level) vs. Speed (time)
Scan Duration: Approximate scan time.
Scan Size: Numbers of point in horizontal and vertical axes
Point Distance: Point spacing at known distance.
Resolution
The Higher the Resolution setting, the smaller the point distance.
Practical Example
Scanning Times
Planning Your Scene Scanner Locations
75 feet between Scans
Planning your scene Sphere Layout Sphere Placement Maximum Distance
139mm: Max 60 feet from the scanner
150 mm: Max 60 feet from the scanner
200 mm: Max 90 feet from the scanner
Avoid placing Spheres in front of windows or mirrors if possible.
Not on the vehicles
Keep track of your progress
Spheres knocked over
3 Common Spheres
Creating the 3D Image
Target Based- Spheres, Checkerboard
Cloud to Cloud- Similarity is important
Top View Based-Great for internal scenes
Manual
Manual Helpers
Planes
Points
Spheres
Are spheres really necessary?
Are spheres really necessary? Location, Location, Location
Crash Scene vs Crime Scene
Peace of Mind
Recommended Sizes: Bigger is better
Other Options
Are spheres really necessary?
Mounting Spheres
Scanner Placement-Vehicles
Scanner Placement-What do you want to capture? Roadway
Crush
Skidmarks
Gouge Marks
Paint Transfer
Scanner Placement-Making the Connection
Scanner Placement-Making the Connection
Scanner Placement-Making the Connection
Scanner Placement-Making the Connection
Aiming
Weather
Weather
Weather
Rain Workarounds Paint
Lumber Crayons
Evidence Markers
Traffic Cones
Other Weather Effects
Other Weather Effects
Paint
Paint
Paint
Paint
Spectators
Spectators
Spectators
Accuracy
Accuracy
Mirrors/ Windows
Street Signs
Reflective Items
Data Preservation Raw Scans
Burn to a disk
800 MB 4 scans
4.5 GB 25 scans
2 GB 7-8 scans usual Crash Scene
One copy stays untouched in the work product
Final Product
4-6 GB for crash Average
58 GB 25 Scan
Scene SoftwareMinimum Requirements
Microsoft Windows XP/ 7 / 8 (64 bit Only)
Multi core Processor 2GHz plus
8GB RAM
Wheel mouse with 2 buttons
Independent graphic card with OpenGL 2.0 or higher support – 1GB on board memory
My Computer
3.6 GHZ 8 Core Processor
32 GB Ram
NVIDIA Quadro K600 Graphics Card 1GB Memory
3D Mouse
2- 27”Quad HD LED Monitors
Scene Software Merging
Cleaning
Measuring
Fly through movies
Viewing in 3D
Scene Software Demonstration
Scene Software- Video Demo
Scene Software- Video Demo
Questions?