Apparatus and methods for three-dimensional imaging using a static light screen

摘要

A three-dimensional imaging apparatus is disclosed. The apparatus includes a generated first planar light screen, and a first and second detector offset from the perpendicular plane of the light screen. The first detector is located on a first side of the perpendicular plane, and the second detector is located on the opposite side of the perpendicular plane. The first and second detectors detect the instantaneous projection of the first planar light screen upon an object within the first planar light screen, and to output first and second data corresponding to the detected projection. A velocity sensor determines the instantaneous velocity of the object as the object moves relative to the first planar light screen, and to output third data corresponding to the determined velocity. A processor acquires the data from the first and second detector, and the velocity sensor at least two instantaneous times as the object moves relative to the first planar light screen and combines the first, second, and third data to create a three-dimensional image of the object.

主权项

1. A three-dimensional imaging apparatus comprising:
at least one planar light screen; at least one projection detector having a detection axis offset from at the least one planar light screen, the at least one projection detector optically adapted to detect the instantaneous projection of the at least one planar light screen, and to output projection data; at least one relative motion detector having a detection axis offset from the plane of motion, the relative motion detector adapted to detect motion in at least two axes, and further adapted to output relative motion data; a processor adapted to acquire at least the projection data and the relative motion data; wherein the processor is further adapted to use an object tracking algorithm to determine the instantaneous velocity from the relative motion data to generate three-dimensional image data.