Contour detection apparatus, printing apparatus, contour detection method and storage medium
AssigneeCasio Computer Co., Ltd.
InventorMasaaki Sasaki
Life of this patent
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Abstract
A contour detection apparatus includes at least one processor. The processor detects a first nail contour defining a nail region from a finger image of a finger including a nail by performing fitting with a nail contour model. Further, the processor obtains a second nail contour input from a user against the first nail contour that the user does not approve. Further, the processor classifies the first nail contour as a group based on dimensional information on dimensions of the first nail contour, and derives difference information indicating a difference between the first nail contour and the second nail contour.
Claims11
A contour detection apparatus comprising at least one processor that
- detects a first nail contour defining a nail region from a finger image of a finger including a nail by performing fitting with a nail contour model,
- obtains a second nail contour input from a user against the first nail contour that the user does not approve, and
- classifies the first nail contour as a group based on dimensional information on dimensions of the first nail contour, and derives difference information indicating a difference between the first nail contour and the second nail contour,
- wherein the processor performs a correction process with the difference information on another first nail contour that is newly detected and not approved by the user, and the difference information includes:
- information indicating, among feature points constituting the first nail contour against which the second nail contour is input, a maximum error feature point having a largest difference from the second nail contour;
- and information indicating a magnitude of the difference.
A contour detection method comprising:
- detecting a first nail contour defining a nail region from a finger image of a finger including a nail by performing fitting with a nail contour model;
- obtaining a second nail contour input from a user against the first nail contour that the user does not approve;
- classifying the first nail contour as a group based on dimensional information on dimensions of the first nail contour, and deriving difference information indicating a difference between the first nail contour and the second nail contour;
- and
- performing a correction process with the difference information on another first nail contour that is newly detected and not approved by the user,
- the difference information including:
- information indicating, among feature points constituting the first nail contour against which the second nail contour is input, a maximum error feature point having a largest difference from the second nail contour;
- and information indicating a magnitude of the difference.
A non-transitory computer-readable storage medium storing a program that causes a processor to:
- detect a first nail contour defining a nail region from a finger image of a finger including a nail by performing fitting with a nail contour model;
- obtain a second nail contour input from a user against the first nail contour that the user does not approve;
- classify the first nail contour as a group based on dimensional information on dimensions of the first nail contour, and derive difference information indicating a difference between the first nail contour and the second nail contour;
- and
- perform a correction process with the difference information on another first nail contour that is newly detected and not approved by the user,
- the difference information including:
- information indicating, among feature points constituting the first nail contour against which the second nail contour is input, a maximum error feature point having a largest difference from the second nail contour;
- and information indicating a magnitude of the difference.
Dependencies are inferred from the claim text.