Photographic contour measurement
OwnerUlrich M. Landwehrinventor
Life of this patent
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Abstract
Horizontal lines are projected onto a person from a plurality of overhead projectors, each projecting at a 45 degrees angle, all of the projectors have parallel optical axes, the person being photographed with the projected raster superimposed.
Claims8
In an imaging method for ascertaining the dimensions of an object by means of photography using a camera and including the step of projecting during imaging and in an oblique direction a particular pattern of horizontal lines upon the object to be imaged, the improvement comprising:
- using a plurality of narrow bundled projection beams arranged one above each other each with an optical axis of about 45 degrees to the vertical and each projecting a relatively small plurality of horizontal lines upon said object.
Apparatus for acquiring the topological dimensions of an object by means of a photographic camera and comprising in addition a plurality of projectors arranged one above the other overhead above said camera, each projector projecting a horizontal line pattern upon said object, each of the projectors having an optical axis such as parallel to the respective other axes, said axes each having an angle of 45 degrees to the vertical.
Dependencies are inferred from the claim text.