Abstract: An image processing apparatus includes an acquisition unit that acquires a plurality of pieces of tomographic data indicating tomographic information on substantially the same part of a subject to be inspected, a threshold calculation unit that calculates a threshold from tomographic data associated with a target pixel for which motion contrast data is to be calculated of the plurality of pieces of tomographic data, and a pixel value calculation unit that calculates the pixel value of the target pixel of a motion contrast image based on the threshold and the motion contrast data calculated from the tomographic data associated with the target pixel.

Abstract: An image processing apparatus for reducing a projection artifact in motion contrast data of a subject's eye includes a calculation unit configured to calculate, using information on a position of a blood vessel structure of the subject's eye and OCT intensity information on the subject's eye, an attenuation coefficient regarding attenuation of the motion contrast data in a direction of depth of the subject's eye, and a correction unit configured to execute correction processing on the motion contrast data using the calculated attenuation coefficient.

Abstract: Provided is an information processing apparatus including: a first acquisition unit configured to acquire a plurality of pieces of tomographic data based on measurement light controlled to scan the same position of a fundus; a second acquisition unit configured to acquire a correction coefficient by performing an arithmetic operation on a first approximate parameter obtained by transforming, in a first dimension, a parameter of the tomographic data to be used for calculating a motion contrast, and a second approximate parameter obtained by transforming the parameter in a second dimension smaller than the first dimension; a correction unit configured to correct a parameter of at least one piece of tomographic data through use of the correction coefficient; and a generation unit configured to generate a motion contrast image through use of the at least one piece of tomographic data corrected by the correction unit.

Abstract: An image processing apparatus includes an acquisition unit that acquires a plurality of pieces of tomographic data indicating tomographic information on substantially the same part of a subject to be inspected, a threshold calculation unit that calculates a threshold from tomographic data associated with a target pixel for which motion contrast data is to be calculated of the plurality of pieces of tomographic data, and a pixel value calculation unit that calculates the pixel value of the target pixel of a motion contrast image based on the threshold and the motion contrast data calculated from the tomographic data associated with the target pixel.

Abstract: The ophthalmologic apparatus includes: a scanning unit that scans a fundus of an eye to be inspected with measurement light; a selecting unit that selects one imaging mode out of a first imaging mode and a second imaging mode which is different from the first imaging mode; an acquiring unit that acquires information which indicates a movement amount of the eye to be inspected, based on a plurality of planar images of the fundus; and a correcting unit that corrects a scanning position of the measurement light in an initial scan which is executed after the information indicating the movement amount has been acquired, in the first imaging mode, and corrects the scanning position of the measurement light in an initial scan included in an initial scanning group which is executed after the information indicating the movement amount has been acquired, in the second imaging mode.

Abstract: A method and system for compensating for motion artefacts in Optical Coherence Tomography is provided. A B-scan set includes a plurality of B-scan images acquired at least a position corresponding to a target position of a fundus of an eye. The plurality of B-scans within the B-scan set are aligned using a first alignment process and a second alignment process, where the second alignment process is performed on the B-scan images within the B-scan set aligned by the first alignment process. The first alignment process aligns the B-scan images within the B-scan set at a first resolution in at least an axial direction, and the second alignment process aligns the B-scan images within the B-scan set aligned in the first alignment process at a second resolution having a higher resolution than the first resolution in at least the axial direction.

Abstract: Provided is an information processing apparatus including: a first acquisition unit configured to acquire a plurality of pieces of tomographic data based on measurement light controlled to scan the same position of a fundus; a second acquisition unit configured to acquire a correction coefficient by performing an arithmetic operation on a first approximate parameter obtained by transforming, in a first dimension, a parameter of the tomographic data to be used for calculating a motion contrast, and a second approximate parameter obtained by transforming the parameter in a second dimension smaller than the first dimension; a correction unit configured to correct a parameter of at least one piece of tomographic data through use of the correction coefficient; and a generation unit configured to generate a motion contrast image through use of the at least one piece of tomographic data corrected by the correction unit.

Abstract: The ophthalmologic apparatus includes: a scanning unit that scans a fundus of an eye to be inspected with measurement light; a selecting unit that selects one imaging mode out of a first imaging mode and a second imaging mode which is different from the first imaging mode; an acquiring unit that acquires information which indicates a movement amount of the eye to be inspected, based on a plurality of planer images of the fundus; and a correcting unit that corrects a scanning position of the measurement light in an initial scan which is executed after the information indicating the movement amount has been acquired, in the first imaging mode, and corrects the scanning position of the measurement light in an initial scan included in an initial scanning group which is executed after the information indicating the movement amount has been acquired, in the second imaging mode.

Abstract: A method and system for compensating for motion artefacts in Optical Coherence Tomography is provided. A B-scan set includes a plurality of B-scan images acquired at least a position corresponding to a target position of a fundus of an eye. The plurality of B-scans within the B-scan set are aligned using a first alignment process and a second alignment process, where the second alignment process is performed on the B-scan images within the B-scan set aligned by the first alignment process. The first alignment process aligns the B-scan images within the B-scan set at a first resolution in at least an axial direction, and the second alignment process aligns the B-scan images within the B-scan set aligned in the first alignment process at a second resolution having a higher resolution than the first resolution in at least the axial direction.

Abstract: An image capturing apparatus includes a dividing unit configured to divide light from a light source into reference light and measurement light; a first dichroic mirror arranged in a measurement optical path for guiding the measurement light to an object to be examined; a second dichroic mirror arranged in a reference optical path for guiding the reference light to a reference object; and a light receiving unit configured to receive interference light between the measurement light passing through the first dichroic mirror and the reference light passing through the second dichroic mirror.

Abstract: An image capturing apparatus includes a dividing unit configured to divide light from a light source into reference light and measurement light; a first dichroic mirror arranged in a measurement optical path for guiding the measurement light to an object to be examined; a second dichroic mirror arranged in a reference optical path for guiding the reference light to a reference object; and a light receiving unit configured to receive interference light between the measurement light passing through the first dichroic mirror and the reference light passing through the second dichroic mirror.