Data processing method and oct apparatus
AssigneeTopcon Corporation
InventorYoshikiyo MORIGUCHI
Life of this patent
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Abstract
According to one embodiment, a data processing method is used for processing collected data acquired with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range. The data processing method detects a reference signal assigned in advance to a clock, the wavenumber of which linearly varies along the time axis, in a predetermined wavelength position within the predetermined wavelength sweeping range. Then, the data processing method sequentially performs sampling of the collected data based on the clock with reference to the predetermined wavelength position where the reference signal detected is assigned. Further, the data processing method forms an image of a corresponding A-line based on the sampled collected data.
Claims10
A data processing method for processing collected data acquired with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range, the method comprising:
- detecting a reference signal assigned in advance to a clock, wavenumber of which linearly varies along a time axis, in a predetermined wavelength position within the predetermined wavelength sweeping range;
- sequentially performing sampling of the collected data based on the clock with reference to the predetermined wavelength position where the reference signal detected is assigned;
- and
- forming an image of a corresponding A-line based on the sampled collected data.
A data processing method for processing collected data acquired with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range, the method comprising:
- performing sampling of the collected data based on a clock, which is assigned in advance a reference signal in a predetermined wavelength position within the predetermined wavelength sweeping range, and wavenumber of which linearly varies along a time axis;
- correcting phase of the sampled collected data based on the predetermined wavelength position where the reference signal is assigned;
- and
- forming an image of a corresponding A-line based on the collected data, the phase of which has been corrected.
An OCT apparatus configured to acquire collected data with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range, the OCT apparatus comprising:
- a clock generator configured to generate a clock, which includes a reference signal in a predetermined wavelength position within the predetermined wavelength sweeping range, and wavenumber of which linearly varies along a time axis;
- a detector configured to detect the reference signal in the clock generated by the clock generator;
- an acquisition part configured to sequentially perform sampling of the collected data based on the clock with reference to the predetermined wavelength position where the reference signal detected by the detector is assigned to acquire the collected data;
- and
- an image forming part configured to form an image of a corresponding A-line based on the collected data acquired by the acquisition part.
An OCT apparatus configured to acquire collected data with respect to each A-line by swept-source OCT using a wavelength sweeping light source having a predetermined wavelength sweeping range, the OCT apparatus comprising:
- a clock generator configured to generate a clock, which includes a reference signal in a predetermined wavelength position within the predetermined wavelength sweeping range, and wavenumber of which linearly varies along a time axis;
- an acquisition part configured to perform sampling of the collected data based on the clock generated by the clock generator to acquire the collected data;
- and
- an image forming part configured to correct phase of the collected data acquired by the acquisition part based on the predetermined wavelength position where the reference signal is assigned, and form an image of a corresponding A-line based on the collected data, the phase of which has been corrected.
Dependencies are inferred from the claim text.