Real-time multi-target position detection method and system based on image

A detection method and multi-target technology, applied in the field of real-time visual detection, can solve the problems of low measurement accuracy and difficult internal parameter scaling, and achieve the effects of precise positioning, improving measurement accuracy and real-time performance, and improving image calibration accuracy.

Inactive Publication Date: 2013-05-01
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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Problems solved by technology

[0009] The present invention provides an image-based real-time multi-target position detection method and system, which aims at the difficulty of internal parameter calibration and low measurement accuracy during the multi-target position detection during the process of line-of-sight chan

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  • Real-time multi-target position detection method and system based on image
  • Real-time multi-target position detection method and system based on image
  • Real-time multi-target position detection method and system based on image

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Embodiment

[0036] Example An image-based real-time multi-target position detection method and system

[0037] Image-based real-time multi-target position detection system, aiming at the difficulty of internal parameter calibration and low measurement accuracy in the process of multi-target position detection during the process of line-of-sight change under the rotation of the image capture device in the existing image measurement, by self-calibrating the reference object space Position self-calibration, based on the self-positioning of cascaded image equipment, to achieve multi-target position image coordinate detection. It can be applied in the field of long line-of-sight conditions, large-scale detection object outline or long-line detection object cross-section curve recovery detection and other fields. It adds the following two improvements on the basis of the existing real-time detection system:

[0038] 1. Added gimbal position feedback control system

[0039] The position fee...

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Abstract

The invention provides a real-time multi-target position detection method and a system based on an image and relates to a real-time visual detection technology. The invention solves the problem that a traditional real-time visual detection technology can not satisfy continuous real-time high-precision detection and adopts the main technical scheme that the method comprises the following steps: carrying out feedback control and adjustment on the position of a tripod head and calibrating real-time multi-target position detection system image pickup equipment based on the image. The real-time multi-target position detection method and the system have the outstanding advantages that the detection target direction of the image system can be quickly and accurately positioned; the calibration of the online real-time self-adaptive image system can be realized; and different detection demands can be satisfied, the image calibration precision is improved, and the measurement precision and the real time are improved.

Description

technical field [0001] The invention relates to a real-time visual detection technology, in particular to an image-based real-time multi-target position detection method and system. Background technique [0002] With the advancement of science and technology and the development of computer vision technology and photogrammetry technology, the application of camera-based image monitoring and real-time visual inspection technology in the security industry, object size and spatial position parameters in industrial environments has developed by leaps and bounds. . The real-time visual inspection system has the advantages of non-contact, large dynamic range, rich information, etc., and has been valued by the field of measurement at home and abroad. Real-time visual inspection can independently and objectively measure the static or dynamic measurement of the measured object. It becomes possible for many measurement problems that cannot be installed with sensing devices on the mea...

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Application Information

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IPC IPC(8): G01C3/10H04N5/232
Inventor 方玉常正威干树川姚毅
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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