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Camera stability evaluation method and device

A stability and camera technology, applied in image analysis, image enhancement, instruments, etc., can solve problems such as robustness of corner detection algorithm, false detection, and influence of camera stability evaluation results, so as to improve accuracy and improve accuracy Effect

Inactive Publication Date: 2021-01-12
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method relies too much on the accuracy of corner detection, and the existing corner detection algorithm is not very robust, there are many false detections, missed detections, etc., which will cause a greater impact on the final camera stability evaluation results. influences

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  • Camera stability evaluation method and device
  • Camera stability evaluation method and device

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Embodiments of the present invention provide a camera stability evaluation method and device, which can improve the accuracy and reliability of camera stability evaluation, can be used in high-precision industrial measurement tasks, and have good imaging effects, stability and reliability, and performance Excellent camera with technical support.

[0026] In order to facilitat...

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Abstract

The invention provides a camera stability evaluation method and device. The method comprises the following steps: obtaining multiple continuous frames of edge contour images; wherein the multiple frames of edge contour images comprise edge contours of a target object shot by a camera; determining variances of longitudinal coordinates of the same edge point in the multiple frames of edge contour images; and evaluating the stability of the camera according to the variance. The method can improve the accuracy of camera stability evaluation.

Description

technical field [0001] The invention relates to the technical field of high-precision measurement, in particular to a camera stability evaluation method and device. Background technique [0002] In the production and scientific research links of aerospace, machinery and other industrial sectors, more and more machine vision measurement methods are used for high-precision measurement tasks. Usually, high-precision measurement tasks have high requirements for camera imaging stability and measurement result stability. Existing camera sensors are classified into two types: CCD (Charge-coupled Device, charge-coupled device) and CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor). The CMOS image sensor has a high degree of integration, and the distance between each component and circuit is very close, the mutual interference is relatively serious, and the imaging noise is high. CCD image sensor has high sensitivity and low noise, but it is expe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00G06T7/60
CPCG06T7/60G06T2207/10016H04N17/002
Inventor 陈亮牛海军王潇王丽娟
Owner CHINA UNIV OF PETROLEUM (BEIJING)