The Accuracy of Photo-Based Three-Dimensional Scanning for Collision Reconstruction Using 123D Catch Hayes + Associates

Format:

Conference/Event

Author/Creator:

Erickson, Erickson, author.

Contributor:

Bauer, Jeremy J.

Hayes, Wilson C.

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

An experiment was conducted to examine the validity of freelyavailable photo-based 3D scanning software for generating accurate3D geometry of a vehicle. Currently, 3D vehicle geometry isroutinely captured using total station survey equipment, coordinatemeasuring machines (CMM), laser scanning, or traditionalpoint-based photogrammetry. While these methods producesufficiently accurate results for collision reconstruction, theyhave limitations that can affect practical implementation. Forexample, manual surveying with a total station, CMM or traditionalphotogrammetry are all limited to the production of coordinate dataat discrete, pre-defined points. In addition, total stations, CMMsand laser scanning devices are also expensive and require asignificant amount of time in the field with the vehicle. Incontrast, photo-based 3D scanning allows a 3D mesh to be created ofa vehicle simply from a series of photographs using aconsumer-grade digital camera.In this experiment, a vehicle was marked with point targets andphotographed. The coordinates of the targets were then measuredusing: 1) A total station; 2) Traditional photogrammetry software;and 3) Photo-based 3D scanning software. The coordinates of thetargets on the vehicle model produced through the photo-basedscanning process were compared with the target positions measuredvia total station and traditional photogrammetry. The meandeviation between corresponding points on the photo-based scanningmodel and the traditional photogrammetric model was 3.2 ± 1.8 mm.The mean coordinate deviation between the photo-based scanningmodel and the total station data ranged between 3.4 ± 1.4 mm and6.3 ± 3.1 mm

Notes:

Vendor supplied data

Publisher Number:

2013-01-0784

Access Restriction:

Restricted for use by site license