Apparatus and method for realizing multi-resolutions image acquisition with multi-focusing video camera

An image acquisition and multi-resolution technology, which is applied in the field of video processing, can solve the problems of difficult control of image resolution, high device cost, and difficult acquisition control, etc., and achieve the effects of adjustable image details, stable imaging quality, and flexible selection

Inactive Publication Date: 2008-10-01
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

Although it can solve the problem of the size of the visual scene, it has the disadvantage of introducing image resolution that is not easy to control, and the cost of the device will

Method used

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  • Apparatus and method for realizing multi-resolutions image acquisition with multi-focusing video camera
  • Apparatus and method for realizing multi-resolutions image acquisition with multi-focusing video camera
  • Apparatus and method for realizing multi-resolutions image acquisition with multi-focusing video camera

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Embodiment Construction

[0028] Such as figure 1 As shown, the present invention sets 5 fixed-focus cameras, and the 4 cameras on the right are on the same horizontal plane, located on the 4 vertices of the same square, corresponding to the four points B, C, D, and E in the figure, and 4 cameras The cameras have the same focal length, set to f s ; The other camera is located on the left of the above four cameras, corresponding to point A in the figure, its axis line is perpendicular to the plane of the four cameras and passes through the center point of the square, corresponding to point O in the figure, and the distance to this point is d , let the focal length of the camera be f t . Initialize the parameters and positions of the five fixed-focus cameras, and their positional relationships satisfy the following constraints: f t =f s +d.

[0029] The working principle and process of the device of the present invention are as follows: five fixed-focus cameras are divided into two groups of full-sc...

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Abstract

A device and a method for using a multi-focusing camera to realize collection of multi-resolution images are disclosed, comprising five focusing cameras having restraining relationship with others, wherein four of them are located at the same horizontal plane and on four top points of the same square, and the four cameras have the identical focus which is set as f; the rest 1 camera is located in the direction of the four cameras, axes line of the camera is perpendicular to the surfaces of four cameras and passes a central point O of the square, and the distance from the fifth camera to the rest four cameras is d, the focus of the camera is set as f, and initial setting is performed to the parameters and locations of the five focusing cameras with the location relationship satisfying the following restraint: f=f+d. The invention achieves the function of lossless zooming film of the multi-focusing camera with adjustable details of scenes and images, and with flexible and controllable structure, the invention can rapidly collect the multi-resolution images in the large visual scene.

Description

technical field [0001] The invention belongs to the field of video processing, in particular to a device and method for acquiring scene images applied to computer vision. Background technique [0002] Multi-resolution image acquisition refers to the process of consistent acquisition of image data of the same scene at different resolution details. The emphasis is on artificially adjusting the image resolution of the shooting scene according to the user's needs for image details. Existing methods and devices use zoom cameras to achieve multi-resolution image acquisition. [0003] A zoom camera refers to a camera whose lens focal length can be adjusted and changed, so that different visual and shooting effects can be obtained by changing the lens focal length, including single-camera optical zoom shooting and single-camera digital zoom shooting. [0004] Single-camera optical zoom relies on the structure of the optical lens to achieve zooming. The camera lens moves to zoom in...

Claims

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Application Information

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IPC IPC(8): G06K9/32G06K9/62G06K9/00
Inventor 赵沁平赵旭张淑军周忠吴威
Owner BEIHANG UNIV
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