Image processing apparatus and method
First Claim
1. An image processing apparatus, comprising:
- a first camera for inputting a first image of a face of a person to be recognized;
a second camera for inputting a second image of the face of the person;
face detection means for detecting a face area from the first image;
frontal face decision means for deciding whether the second image is a frontal face of the person by referring to the face area;
open eyes detection means for detecting a state of open eyes from the face area; and
image output means for outputting the second image inputted while the second image is decided to be the frontal face and the state of open eyes is detected;
wherein a direction from a view position of the second camera to a center position of the face of the person is a facial front direction, andwherein a view position of the first camera is located lower than a position of the face of the person, and a direction of the optical axis of the first camera represents an angle of elevation from a horizontal direction.
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Abstract
An image processing apparatus. A camera inputs an image of a face of a person to be recognized. A recognition area detection section generates a difference image between the input image and a predetermined pattern, and detects a recognition area whose value is above a threshold from the input image. An input data generation section converts the recognition area to a predetermined input data. A similarity calculation section calculates a similarity by comparing the predetermined input data with a predetermined dictionary data. A view position of the camera is located lower than a position of the face of the person. A direction of the optical axis of the camera represents an angle of elevation from a horizontal direction.
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Citations
7 Claims
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1. An image processing apparatus, comprising:
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a first camera for inputting a first image of a face of a person to be recognized; a second camera for inputting a second image of the face of the person; face detection means for detecting a face area from the first image; frontal face decision means for deciding whether the second image is a frontal face of the person by referring to the face area; open eyes detection means for detecting a state of open eyes from the face area; and image output means for outputting the second image inputted while the second image is decided to be the frontal face and the state of open eyes is detected; wherein a direction from a view position of the second camera to a center position of the face of the person is a facial front direction, and wherein a view position of the first camera is located lower than a position of the face of the person, and a direction of the optical axis of the first camera represents an angle of elevation from a horizontal direction. - View Dependent Claims (2, 3, 4, 5)
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6. A method for processing an image, comprising the steps of:
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inputting a first image of a face of a person to be recognized using a first camera; inputting a second image of the face of the person using a second camera; detecting a face area from the first image; deciding whether the second image is a frontal face of the person by referring to the face area; detecting a state of open eyes from the face area; and outputting the second image inputted while the second image is decided to be the frontal face and the state of open eyes is detected; wherein a direction from a view position of the second camera to a center position of the face of the person is a facial front direction, and wherein a view position of the first camera is located lower than a position of the face of the person, and a direction of the optical axis of the first camera represents an angle of elevation from a horizontal direction.
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7. A computer readable medium that stores a computer program comprising:
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instruction means for causing a computer to input a first image of a face of a person to be recognized using a first camera; instruction means for causing a computer to input a second image of the face of the person using a second camera; instruction means for causing a computer to detect a face area from the first image; instruction means for causing a computer to decide whether the second image is a frontal face of the person by referring to the face area; instruction means for causing a computer to detect a state of open eyes from the face area; and instruction means for causing a computer to output the second image inputted while the second image is decided to be the frontal face and the state of open eyes is detected; wherein a direction from a view position of the second camera to a center position of the face of the person is a facial front direction, and wherein a view position of the first camera is located lower than a position of the face of the person, and a direction of the optical axis of the first camera represents an angle of elevation from a horizontal direction.
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Specification