Monitoring apparatus and system using 3D information of images and monitoring method using the same
First Claim
1. A monitoring apparatus comprising at least one processor to implement:
- an image acquisition unit configured to acquire a two-dimensional (2D) image of an object which is captured by a pan/tilt/zoom (PTZ) camera;
an information extraction unit configured to extract distance information between the PTZ camera and the object based on a zoom scale of the PTZ camera;
an operation unit configured to calculate variation of the distance information between different frames of the 2D image, and variation of height information of the object between different frames of a 3D image of the object, the height information indicating a height of the object in a 3D space represented by the 3D image; and
a position tracking unit configured to determine a current position of the object based on the two variations.
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Accused Products
Abstract
A monitoring apparatus using three-dimensional (3D) information of images includes: an image acquisition unit to acquire a two-dimensional (2D) image from a pan/tilt/zoom (PTZ) camera; an information extraction unit to extract 2D coordinate information of an object based on a pan/tilt angle of the PTZ camera and extract distance information between the PTZ camera and the object; an operation unit to calculate at least one of variation of the 2D coordinate information and the distance information by comparing a current frame and a previous frame of the 2D image, and variation of the 2D coordinate information and height information of the object by comparing a current frame and a previous frame of a 3D image of the object; and a position tracking unit to track a position of the object by controlling the PTZ camera based on the at least one of the two variations.
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Citations
16 Claims
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1. A monitoring apparatus comprising at least one processor to implement:
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an image acquisition unit configured to acquire a two-dimensional (2D) image of an object which is captured by a pan/tilt/zoom (PTZ) camera; an information extraction unit configured to extract distance information between the PTZ camera and the object based on a zoom scale of the PTZ camera; an operation unit configured to calculate variation of the distance information between different frames of the 2D image, and variation of height information of the object between different frames of a 3D image of the object, the height information indicating a height of the object in a 3D space represented by the 3D image; and a position tracking unit configured to determine a current position of the object based on the two variations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A monitoring method comprising:
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acquiring a two-dimensional (2D) image captured by a pan/tilt/zoom (PTZ) camera; extracting distance information between the PTZ camera and the object based on a zoom scale of the PTZ camera; calculating variation of the distance information between different frames of the 2D image, and variation of height information of the object between different frames of a 3D image of the object, the height information indicating a height of the object in a 3D space represented by the 3D image; and determining a current position of the object based on the two variations. - View Dependent Claims (16)
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Specification