introduction
image formation a two-dimensional picture of the three-dimensional (3d) world is generated in the image plane of an objective lens. each element of the image corresponds to a pyramidal volume element of the 3d scene.thus an image alone permits only through estimations of the 3d coordinates of an object when the depth of focus is used.
one method often used to measure the 3d coordinates is the projection of structured light:the measurement object is illuminated with structured light with well-defined and known beams. the coordinate calculation is based on the parallax between camera and illumination and the principle of triangulation.
in the commonly used structured light measurement systems , the detector and the projector are lolized side by side (perpendicular to the line of light ).in these arrangements the measurements increases with the distance between the optical systems. the best accuracy is achable in the area in front of the systems (where the beam angles are nearly equal ),for many technical applications. the is also the most interesting region.
image formation a two-dimensional picture of the three-dimensional (3d) world is generated in the image plane of an objective lens. each element of the image corresponds to a pyramidal volume element of the 3d scene.thus an image alone permits only through estimations of the 3d coordinates of an object when the depth of focus is used.
one method often used to measure the 3d coordinates is the projection of structured light:the measurement object is illuminated with structured light with well-defined and known beams. the coordinate calculation is based on the parallax between camera and illumination and the principle of triangulation.
in the commonly used structured light measurement systems , the detector and the projector are lolized side by side (perpendicular to the line of light ).in these arrangements the measurements increases with the distance between the optical systems. the best accuracy is achable in the area in front of the systems (where the beam angles are nearly equal ),for many technical applications. the is also the most interesting region.
回复Comments
作者:
{commentrecontent}