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Incremental unmanned aerial vehicle aerial photography overlapping degree detection method and system

A detection method and overlapping degree technology, which are applied in computer parts, character and pattern recognition, image data processing, etc. Effect

Pending Publication Date: 2020-10-09
SICHUAN SURVEYING & MAPPING PROD QUALITY SUPERVISION & INSPECTION STATION OF THE MINIST OF NATURAL RESOURCES SICHUAN SURVEYING & MAPPING PROD QUALITY SUPERVISION & INSPECTION STATION
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for incrementally detecting the overlapping degree of aerial photography of unmanned aerial vehicles, so as to solve the problems of low overlapping degree detection efficiency and low accuracy of detection results in the existing detection method of aerial photography overlapping degree

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  • Incremental unmanned aerial vehicle aerial photography overlapping degree detection method and system
  • Incremental unmanned aerial vehicle aerial photography overlapping degree detection method and system
  • Incremental unmanned aerial vehicle aerial photography overlapping degree detection method and system

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Embodiment Construction

[0067] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0068] The purpose of the present invention is to provide an incremental drone aerial photography overlap detection method and system, which can improve the overlap detection efficiency and the accuracy of the detection result.

[0069] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention will be further described in detail below in conjunct...

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Abstract

The invention relates to an incremental unmanned aerial vehicle aerial photography overlapping degree detection method and system. The overlapping degree detection method comprises the following steps: acquiring exterior orientation elements of all images in a shooting area of an unmanned aerial vehicle; constructing an image connection graph according to the exterior orientation elements; extracting feature points of all the images; matching the image pair according to the feature points, and determining multi-view matching points; obtaining a camera internal reference matrix, and establishing an object space initial model according to the camera internal reference matrix; iteratively optimizing the object space initial model by using an incremental motion recovery structure method SFM, and determining an object space reconstruction model; determining a projection image according to the multi-view matching point and the object space reconstruction model; and detecting an image courseoverlapping degree and a lateral overlapping degree according to the spatial overlapping relationship between the projection images of the projection images. By adopting the overlapping degree detection method or system provided by the invention, the overlapping degree detection efficiency and the accuracy of the detection result can be improved.

Description

Technical field [0001] The invention relates to the field of drone aerial photography overlap degree detection, in particular to an incremental drone aerial photography overlap degree detection method and system. Background technique [0002] UAV aerial photography systems have the characteristics of flexibility, low cost, and high efficiency, and have been widely used in surveying and mapping, agriculture, forestry, emergency and other fields. UAVs benefit from their lightweight and portable characteristics, but also have shortcomings such as wind resistance and poor attitude stability, which directly lead to unstable image heading and side overlap, prone to aerial photography loopholes, and directly affect the aerial survey industry The quality of the image. Therefore, during the aerial photography stage of the UAV, strict flight quality inspection and evaluation of the image are required to ensure that it meets the requirements for data processing. [0003] At this stage, there...

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Application Information

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IPC IPC(8): G06T7/33G06T7/73G06T7/80G06K9/62
CPCG06T7/80G06T7/73G06T7/33G06V10/757Y02T10/40
Inventor 李冲李昊霖佘毅
Owner SICHUAN SURVEYING & MAPPING PROD QUALITY SUPERVISION & INSPECTION STATION OF THE MINIST OF NATURAL RESOURCES SICHUAN SURVEYING & MAPPING PROD QUALITY SUPERVISION & INSPECTION STATION
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