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Correction method and corrector of megapixel monitoring camera

A technology for monitoring cameras and video cameras, which is applied in the fields of instruments, image communication, and color TV components to reduce labor intensity, solve image drift, and improve efficiency.

Active Publication Date: 2010-05-19
福建富兰光学股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]The purpose of the present invention is to overcome the shortcomings of image adjustment existing in the installation of dome cameras with more than one million pixels, and to provide a hemispheric camera without auto focus Calibration method for fast adjustment of camera and calibrator for realizing this method

Method used

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  • Correction method and corrector of megapixel monitoring camera
  • Correction method and corrector of megapixel monitoring camera
  • Correction method and corrector of megapixel monitoring camera

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Embodiment 2

[0021] Example 2, such as Figure 4 , Figure 5 As shown, the bracket 2 has four fixed legs 5, the upper end surface has a groove 6 for installing the correction lens 1, the camera fixing frame 3 has a slot 4, and the fixed legs 5 of the bracket 2 are buckled on the slot 4.

[0022] The principle of the present invention lies in that the optical curvature and refractive index of any part of the optical dome cover used by the camera are consistent. Make a correction lens with a small outer diameter based on this curvature and refractive index (the outer diameter is based on the size of the camera’s field of view), and combine it with the bracket to form a correction bracket, and install it in front of the lens. The bracket ensures that the lens is away from the center of rotation of the camera The distance is the same as the distance from the installed dome cover surface to the center of rotation of the camera. Adjust the image of the lens until it is clear, then remove the co...

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Abstract

The invention belongs to an installing and regulating scheme of a semi-spherical camera above megapixel in a monitoring system, in particular to a correction method and a corrector special for a semi-spherical camera without an auto-focus system. The invention relates to a correction method of a megapixel monitoring camera which is characterized in that the partial spherical surface of an optical spherical cover which is the same with an optical spherical cover arranged outside the camera is intercepted, the area of the partial spherical surface is larger than a visual range of a maximum viewing angle of the camera, the partial spherical surface is arranged in front of the camera in the same distance of the optical spherical cover and a camera lens, the influence of the camera by the optical spherical cover is simulated to regulate the camera, and an ideal image can be obtained by regulating the image of the lens until the image is clear, taking off a correction bracket and installing the spherical cover. The correction method creates a regulating space by simulating the influence of the camera by the optical spherical cover through a corrective lens and is a convenient, reasonable and operable correction scheme, and a simple corrector can be designed according to the correction method to improve regulating efficiency.

Description

Technical field: [0001] The invention belongs to the installation and adjustment scheme of the hemispherical camera with more than one million pixels in the monitoring system, in particular to the special calibration method and corrector for the hemispherical camera without an automatic focus system. Background technique: [0002] Such as figure 1 As shown, for a camera with more than one megapixel, the optical dome cover 8 should not only protect the camera, but also ensure that the image of the camera 7 is clear. Since the camera does not have an auto-focus system, the camera 7 is usually fixed on the camera fixing frame 3 during installation, and the optical dome cover is installed after first debugging the camera. However, the dome cover will cause the image plane of the debugged camera to drift, and the image will be blurred. After the airtight dome cover is installed, the camera can no longer be adjusted. Usually, the optical dome cover needs to be removed, and the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N7/18G02B7/02
CPCH04N5/2251G02B27/0025H04N23/50
Inventor 潘敏忠
Owner 福建富兰光学股份有限公司
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