Kinematic measurement from panned cinematography.
Traditional 2-D cinematography has used a stationary camera with its optical axis perpendicular to the plane of motion. This method has constrained the size of the object plane or has introduced potential errors from a small subject image size with large object field widths. The purpose of this study was to assess a panning technique that could overcome the inherent limitations of small object field widths, small object image sizes and limited movement samples. The proposed technique used a series of reference targets in the object field that provided the necessary scales and origin translations. A 102 m object field was panned. Comparisons between criterion distances and film measured distances for field widths of 46 m and 22 m resulted in absolute mean differences that were comparable to that of the traditional method.
Gervais
P
P
University of Alberta, Edmonton.
Bedingfield
E W
EW
Wronko
C
C
Kollias
I
I
Marchiori
G
G
Kuntz
J
J
Way
N
N
Kuiper
D
D
D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007091:Image Processing, Computer-Assisted; D009040:Motion Pictures / Q000295:instrumentation; D009068:Movement; D010781:Photography / Q000379:methods*