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Abstract: A
data registration method based on planar baseline target is proposed for
the 3D data registration problem in vision measurement. An optimization
object function about all parameters of rotation matrix and transmission
vector between two vision sensor coordinate frames at adjacent
viewpoints is established using feature points provided by the planar
target. The rotation matrix and the transmission vector with an unknown
scale are estimated by Levenberg-Marquardt optimiz- ation algorithm. The
unknown scale is found relying on base- line length on the planar
target, and the data registration matrix is obtained. The registration
experiment is conducted using 100 feature points on the planar target,
and the data registration RMS error of x, y and z is 0.038mm, 0.022mm
and 0.135mm respectively. The experimental results show the presented
method is flexible and widely applicable.
Key words:3D
data registration Vision measement Planar target Baseline length
CLC No: TH391
国家自然科学基金资助项目(50375012).
Received 50818, received
in revised form 20060315
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