Arish A Qazi,Henrik Öjelund,Karl-Josef Hollenbeck,Mike Van Der Poel,RASMUS KJAER,Rune Fisker
申请号：
BR112012000189
公开号：
BR112012000189A8
申请日:
2010.06.17
申请国别(地区):
BR
年份:
2018
代理人:
摘要：
A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.
