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Image processing method, device and electronic equipment

A technology for image processing and photographic equipment, applied in the field of surveying, can solve problems such as difficulty in meeting the accuracy requirements of aerial surveys and inaccurate measurements, and achieve the effects of meeting the accuracy requirements, increasing reliability, and eliminating geometric errors

Active Publication Date: 2020-07-24
AERIAL PHOTOGRAMMETRY & REMOTE SENSING CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the purpose of the embodiments of the present invention is to provide an image processing method, device and electronic equipment to improve the problem of inaccurate measurement and difficult to meet the requirements of aerial survey accuracy in the prior art

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  • Image processing method, device and electronic equipment
  • Image processing method, device and electronic equipment
  • Image processing method, device and electronic equipment

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Embodiment Construction

[0039] With the development of UAV and digital camera technology, digital aerial survey technology based on UAV platform has shown its unique advantages, and the application of UAV aerial survey technology is becoming more and more extensive.

[0040]After analysis, the inventors found that when UAV aerial survey technology is applied to large-scale topographic map surveying and mapping, due to the small mass and inertia of the UAV itself, it is greatly affected by the airflow, and the pitch angle, roll angle and yaw angle are higher than those of traditional aerial survey. In terms of rapid changes, the inclination angle of the image is too large and the inclination direction is irregular. The amplitude far exceeds the standard requirements of traditional aerial surveys. The stability of the captured image is poor. In the subsequent processing, there will be redundant connection points and many residual values. Or the phenomenon that the connection point of the standard point ...

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Abstract

Embodiments of the present invention provide an image processing method, device, and electronic equipment, which relate to the technical field of measurement. The image processing method includes: obtaining distortion parameters, the original image set of the area to be photographed and the original outer orientation element set, performing distortion processing on the original image set according to the distortion parameters to obtain a corrected version of the image set, and obtaining the original outer orientation element set with high accuracy All exterior orientation elements at the default value and corrected version images corresponding to each exterior orientation element with precision higher than the default value. Obtain the connection points and sigma values ​​of the area to be photographed according to the outer orientation elements with higher precision than the preset value and the corresponding images, and determine whether the sigma value exceeds the set value. According to the judgment results, all outer orientations with higher precision than the preset value The elements are adjusted to obtain the revised version of the outer orientation elements. In this way, the reliability of measurement data and the accuracy of processing results can be guaranteed, and the accuracy requirements of large-scale topographic maps can be met.

Description

technical field [0001] The present invention relates to the technical field of measurement, in particular to an image processing method, device and electronic equipment. Background technique [0002] UAVs have the characteristics of flexible maneuverability, high efficiency and speed, precision and accuracy, low operating cost, wide application range, and short production cycle. UAVs can also obtain high-resolution aerial surveys in small areas and areas where flying is difficult. [0003] However, due to the small mass of the drone itself, it is easily affected by the airflow, and most of the measured image data are inaccurate, which makes it difficult to meet the accuracy requirements of aerial surveys. Contents of the invention [0004] In view of this, the purpose of the embodiments of the present invention is to provide an image processing method, device and electronic equipment to improve the problem of inaccurate measurement in the prior art and difficult to meet th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/00G06T5/00
CPCG01C11/00G06T2207/30181G06T5/80
Inventor 贾满杨博李欢
Owner AERIAL PHOTOGRAMMETRY & REMOTE SENSING CO LTD