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

Claim 8:
9. The apparatus according to claim 5, 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;
the correlation calculator module is configured to calculate the rolling window correlation between the sequence of reduced B-scans and the sequence of stimulus indicators by calculating, for each stimulus indicator in the sequence of stimulus indicators, a correlation between
stimulus indicators in the window comprising the stimulus indicator and the predetermined number of adjacent stimulus indicators, and
reduced B-scans of the sequence of reduced B-scans that are based on OCT image data generated while the retina was being stimulated in accordance with the stimulus indicators in the window; and

the indication of the response of the retina to the light stimulus generated by the response generator module comprises a two-dimensional array of combined 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.