Patent ID: 11857257
Assignee: OPTOS PLC
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 7:
8. The apparatus according to claim 2, wherein:
the receiver module is configured to receive a sequence of B-scans, which has been generated by the OCT imaging device repeatedly scanning the scanned region of the retina over the time period, as the OCT image data, each of the B-scans being formed by a sequence of A-scans;
the apparatus further comprises a B-scan processing module configured to convert the sequence of B-scans into a sequence of reduced B-scans, by replacing each A-scan in the sequence of A-scans forming each B-scan with a respective average value of A-scan elements of the A-scan; and
the correlation calculator module is configured to:
calculate the rolling window correlation between reduced B-scans in the sequence of reduced B-scans and stimulus indicators in the sequence of stimulus indicators by calculating, for each stimulus indicator, a product of the stimulus indicator and a respective windowed portion of the sequence of reduced B-scans comprising a reduced B-scan which is based on a B-scan of the sequence of B-scans which has been generated by the OCT imaging device while the retina was being stimulated in accordance with the stimulus indicator; and
combine the calculated products to generate, as the indication of the response of the retina to the light stimulus, a two-dimensional array of correlation values indicating the response of the retina to the light stimulus as a function of location in the scanned region of the retina and time.