Method of Enhanced Depth Image Acquisition

摘要

The present invention provides a method and apparatus for depth image acquisition of an object wherein at least two time-of-flight cameras are provided and the object is illuminated with a plurality of different light emission states by emitting light signals from each camera. Measurements of the light reflected by the object during each light emission state are obtained at all the cameras wherein the measurements may then be used to optimise the depth images at each of the cameras.

主权项

1. A method of depth image acquisition of an object including the steps of:
providing at least two time-of-flight cameras in a camera arrangement; calibrating a geometry of the camera arrangement; illuminating the object with a plurality of different light emission states by emitting light signals in consecutive steps from each camera; obtaining measurements at all the cameras of the light reflected by the object during each of the consecutive steps, wherein in each of the consecutive steps, the cameras operate at the same modulation frequency; and generating a depth image based on the combined measurements.