Patent ID: 11877799
Assignee: COSTRUZIONI STRUMENTI OFTALMICI C.S.O. S.R.L.
Field: Computer technology (Electrical engineering)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An optical coherence tomography system comprising: a broadband light radiation source; a reference optical arm; movable scanning means for scanning a sample, adapted to receive light radiation emitted by said source to illuminate a portion of the sample corresponding to a position of the scanning means, generating a radiation hitting a surface of the sample, and collecting backscattered radiation from the sample; a signal detection arm with a sensor adapted to reconstruct a signal spectrum resulting from the radiation collected by said reference arm and by said scanning means; beam splitter means adapted to permit the passage of the radiation from the source to the scanning means and to the reference arm, and from these to the detection arm; and a control and processing unit configured to transform said spectrum in a reflectivity profile of the illuminated sample portion, and to generate an image of the sample by juxtaposing a number of reflectivity profiles each corresponding to a portion of the sample and a displacement of said scanning means; wherein said control unit is further configured to obtain a time sequence of images of the sample, and to execute processing steps of an optical flow obtained from said sequence, said processing steps comprising: motion estimations of graphic features of the images between two or more consecutive images; based on said estimations, classification of said features by distinction between mirror artifact graphic features and real graphic features; and reconstruction of a final image of the sample to remove said mirror artifact graphic features.