OCT device, and storage medium for storing OCT data processing program
AssigneeNidek Co., Ltd.
InventorsRyosuke Shiba, Hirofumi Yogo, Yukihiro Higuchi
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Abstract
An OCT device includes a controller configured to: acquire OCT data of a tissue of a subject in a depth direction that is generated by processing interference signal detected by a light receiving element; and perform a correction process to reduce an effect by a noise floor in the OCT data using a plurality of correction amounts each of which is set in accordance with depth at a corresponding data acquisition position. Strength of the noise floor varies depending on the depth of the data acquisition position.
Claims11
A method comprising:
- acquiring OCT data of a tissue of a subject eye in a depth direction that is generated by processing an interference signal generated from measurement light reflected by the tissue and reference light that are split by a light splitting element;
- performing a correction process to reduce an effect by a noise floor in the OCT data using a plurality of correction amounts each of which is set in accordance with depth at a corresponding data acquisition position, wherein strength of the noise floor varies depending on the depth;
- generating an image data of the tissue based on the OCT data on which the correction process was performed in accordance with the depth at the corresponding data acquisition position;
- and
- acquiring a high-quality image data by inputting the image data into a mathematical model that has been trained by a machine learning algorithm to output improved-quality image data from input image data.
An OCT device comprising:
- an OCT light source;
- a light splitting element that is configured to split light emitted from the OCT light source into measurement light and reference light;
- an optical system that is configured to guide the measurement light split by the splitting light element toward a tissue of a subject eye;
- a light receiving element that is configured to detect an interference signal generated from the measurement light reflected by the tissue and the reference light split by the light splitting element;
- and
- a controller configured to:
- acquire OCT data of the tissue in a depth direction that is generated by processing the interference signal detected by the light receiving element;
- and
- perform a correction process to reduce an effect by a noise floor in the OCT data using a plurality of correction amounts each of which is set in accordance with depth at a corresponding data acquisition position, wherein
- strength of the noise floor varies depending on the depth of the corresponding data acquisition position.
A non-transitory, computer readable, storage medium storing an OCT data processing program that is executed by a controller of an OCT data processing device that is configured to process data acquired by an OCT device, the program, when executed by the controller, causing the controller to perform:
- acquiring OCT data of a tissue of a subject eye in a depth direction that is generated by processing an interference signal generated from measurement light reflected by the tissue and reference light that are split by a light splitting element;
- and
- performing a correction process to reduce an effect by a noise floor in the OCT data using a plurality of correction amounts each of which is set in accordance with depth at a corresponding data acquisition position, wherein
- strength of the noise floor varies depending on the depth at the corresponding data acquisition position.
Dependencies are inferred from the claim text.