SURFACE RECONSTRUCTION OF AN ILLUMINATED OBJECT THROUGH PHOTOMETRIC STEREO ANALYSIS

摘要

A method is used for surface reconstruction, wherein at least one object (O) is illuminated by a plurality of spaced lights (ad) simultaneously, a photographic sequence with a plurality of individual images (EBr-EBr + n) of the at least one object (O) is recorded and at least one visible object surface (OS1, OS2) of the object (O) is reconstructed by means of photometric stereoanalysis, wherein the light (La-Ld) emitted by the luminaires (ac; ad) is modulated with different modulation frequencies (fa-fc; fa-fd), the light components of the respective luminaires (ad) reflected by the object (O) are detected on the basis of their modulation frequencies (fa-fd) and assigned to respective partial images (TBa-TBd) and the partial images (TBa-TBd) are used as input images for the photometric stereoanalysis , A device (S1, S2) is set up to carry out the method according to one of the preceding claims. The invention is particularly applicable for room monitoring of indoor and / or outdoor spaces and / or for object recognition, in particular in the context of general lighting.