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US 2018/0122077 A1Published application
Information processing apparatus, information processing method, and program
AssigneeCanon Kabushiki Kaisha
InventorManabu Wada
Life of this patent
Estimating the term…
Abstract
An information processing apparatus includes a determination unit configured to determine, as a threshold value to which a signal intensity value corresponding to a shadow region is compared, a value different from a threshold value to which a signal intensity value corresponding to a region other than the shadow region is compared.
Claims15
An information processing apparatus comprising:
- a first acquisition unit configured to acquire a plurality of pieces of tomographic data each of which indicates a cross section of an eye fundus and is acquired on the basis of measurement light which is controlled so that a same position of the eye fundus is scanned;
- an identification unit configured to identify a shadow region in at least one of the plurality of pieces of tomographic data;
- a determination unit configured to determine, in a case where a shadow region is identified by the identification unit, a value as a second threshold value different from a first threshold value, wherein the first threshold value is compared to a signal intensity value corresponding to a region other than the shadow region, and the second threshold value is compared to a signal intensity value corresponding to the shadow region;
- a comparison unit configured to compare the first threshold value or the second threshold value to a signal intensity value acquired from at least one of the plurality of pieces of tomographic data;
- a second acquisition unit configured to acquire a motion contrast value from a result of the comparison performed by the comparison unit and the plurality of pieces of tomographic data;
- and
- a generation unit configured to generate a motion contrast image based on the motion contrast value acquired by the second acquisition unit.
4 more elements
An information processing method comprising:
- acquiring, as first acquiring, a plurality of pieces of tomographic data each of which indicates a cross section of an eye fundus and is acquired on the basis of measurement light which is controlled so that the same position of the eye fundus is scanned;
- identifying a shadow region in at least one of the plurality of pieces of tomographic data;
- determining, in a case where a shadow region is identified by the identification unit, a value different from a threshold value to which a signal intensity value corresponding to a region other than the shadow region is compared, as a threshold value to which a signal intensity value corresponding to the shadow region is compared;
- comparing the threshold value to a signal intensity value acquired from at least one of the plurality of pieces of tomographic data;
- acquiring, as second acquiring, a motion contrast value from a result of the comparing and the plurality of pieces of tomographic data;
- and
- generating a motion contrast image on the basis of the motion contrast value acquired in the second acquiring.
4 more elements
An information processing apparatus comprising:
- a first acquisition unit configured to acquire a plurality of pieces of tomographic data each of which indicates a cross section of an eye fundus and is acquired on the basis of measurement light which is controlled so that the same position of the eye fundus is scanned;
- an identification unit configured to identify a shadow region in at least one of the plurality of pieces of tomographic data;
- a control unit configured to increase a signal intensity value corresponding to the shadow region and acquired from at least one of the plurality of pieces of tomographic data;
- a comparison unit configured to compare a threshold value to the signal intensity value increased by the control unit;
- a second acquisition unit configured to acquire a motion contrast value from a result of the comparison performed by the comparison unit and the plurality of pieces of tomographic data;
- and
- a generation unit configured to generate a motion contrast image on the basis of the motion contrast value acquired by the second acquisition unit.
4 more elements
Dependencies are inferred from the claim text.