Imaging apparatus and method of recognizing target object
First Claim
1. An imaging apparatus comprising:
- an imaging optical system that is formed of a wide-angle optical system and a telephoto optical system having a common optical axis;
a directional sensor that has a plurality of pixels constituted of photoelectric conversion elements two-dimensionally arranged and that respectively pupil-divides rays incident through the wide-angle and telephoto optical systems so as to selectively receive the rays;
a panning/tilting mechanism that rotates an imaging section, which includes the imaging optical system and the directional sensor, in horizontal and vertical directions;
an image acquisition section that respectively acquires a wide-angle image, for which light is received from the directional sensor through the wide-angle optical system, and a telephoto image for which light is received from the directional sensor through the telephoto optical system;
a target object detection section that detects a first target object from the wide-angle image by performing image processing on the wide-angle image acquired by the image acquisition section,wherein the target object detection section includes a moving object detection section that performs image recognition of a moving object on the basis of the wide-angle images continuously acquired by the image acquisition section, and that detects the image recognized moving object as the first target object;
a panning/tilting control section that controls the panning/tilting mechanism on the basis of information about a position of the first target object, which is detected by the target object detection section, within the wide-angle image such that the first target object is positioned at the center of the wide-angle image; and
an image holding section that holds the telephoto image for a predetermined time period, if the moving object detection section detects the first target object as a moving object.
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Abstract
The imaging apparatus includes: an imaging optical system that is formed of a wide-angle optical system and a telephoto optical system having a common optical axis; a directional sensor; a panning/tilting mechanism that rotates an imaging section, which includes the imaging optical system and the directional sensor, in horizontal and vertical directions; and an image acquisition section that respectively acquires a wide-angle image, and a telephoto image, and a first target object is detected from a wide-angle image, the panning/tilting mechanism is controlled on the basis of information about a position of the detected first target object within the wide-angle image, and image recognition is performed on a telephoto image, when the first target object is positioned at the center of the wide-angle image, thereby recognizing the first target object or a second target object.
10 Citations
20 Claims
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1. An imaging apparatus comprising:
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an imaging optical system that is formed of a wide-angle optical system and a telephoto optical system having a common optical axis; a directional sensor that has a plurality of pixels constituted of photoelectric conversion elements two-dimensionally arranged and that respectively pupil-divides rays incident through the wide-angle and telephoto optical systems so as to selectively receive the rays; a panning/tilting mechanism that rotates an imaging section, which includes the imaging optical system and the directional sensor, in horizontal and vertical directions; an image acquisition section that respectively acquires a wide-angle image, for which light is received from the directional sensor through the wide-angle optical system, and a telephoto image for which light is received from the directional sensor through the telephoto optical system; a target object detection section that detects a first target object from the wide-angle image by performing image processing on the wide-angle image acquired by the image acquisition section, wherein the target object detection section includes a moving object detection section that performs image recognition of a moving object on the basis of the wide-angle images continuously acquired by the image acquisition section, and that detects the image recognized moving object as the first target object; a panning/tilting control section that controls the panning/tilting mechanism on the basis of information about a position of the first target object, which is detected by the target object detection section, within the wide-angle image such that the first target object is positioned at the center of the wide-angle image; and an image holding section that holds the telephoto image for a predetermined time period, if the moving object detection section detects the first target object as a moving object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of recognizing a target object by using an imaging apparatus including an imaging optical system that is formed of a wide-angle optical system and a telephoto optical system having a common optical axis, a directional sensor that has a plurality of pixels constituted of photoelectric conversion elements two-dimensionally arranged and that respectively pupil-divides rays incident through the wide-angle and telephoto optical systems so as to selectively receive the rays, a panning/tilting mechanism that rotates an imaging section, which includes the imaging optical system and the directional sensor, in horizontal and vertical directions, and an image acquisition section that respectively acquires a wide-angle image, for which light is received from the directional sensor through the wide-angle optical system, and a telephoto image for which light is received from the directional sensor through the telephoto optical system, the method comprising:
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detecting a first target object from the wide-angle image by performing image processing on the wide-angle image acquired by the image acquisition section; controlling the panning/tilting mechanism on the basis of information about a position of the detected first target object within the wide-angle image such that the first target object is positioned at the center of the wide-angle image; performing image recognition of a moving object, on the basis of the wide-angle images continuously acquired by the image acquisition section, and detecting the image recognized moving object as the first target object; and holding the telephoto image for a predetermined time period, if the first target object is detected as a moving object.
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Specification