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Method of unmanned plane image real-time splicing

A drone and image technology, applied in image enhancement, image data processing, graphic image conversion, etc., can solve the problems of unsatisfactory stitching speed and large amount of image data, to ensure real-time performance and narrow the matching search range. , the effect of improving the actual combat level and battlefield awareness

Inactive Publication Date: 2013-03-20
NO 27 RES INST CHINA ELECTRONICS TECH GRP
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Problems solved by technology

[0002] At present, there are many existing image stitching methods, but they all start from the image itself and use methods such as frequency domain for stitching. Due to the large amount of image data, the stitching speed is often not satisfactory.

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  • Method of unmanned plane image real-time splicing
  • Method of unmanned plane image real-time splicing

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Embodiment Construction

[0019] In the present invention, the images taken by UAVs have the advantages of matching the GPS coordinates, altitude, speed, and attitude information and other parameter data corresponding to the images, and propose a real-time stitching of UAV images combined with UAV flight parameters. method to complete the real-time and fast splicing of UAV images. Such as figure 1 shown, including the following steps:

[0020] (1) Obtain the image data downloaded by the drone in real time, and obtain the GPS, attitude, altitude, speed, and camera parameter information of the drone synchronized with the image data in real time;

[0021] (2), process and transform the obtained image according to the information in step (1), and enter step (3) after obtaining the preprocessed image;

[0022] (3) Perform overall dynamic image correction on the image to be stitched and the stitched image;

[0023] (4) Preliminarily judge the image overlapping area according to the heading of the UAV, obt...

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Abstract

The invention discloses a method of an unmanned plane image real-time splicing. The method comprises the following steps: (1) obtaining image data downloaded by an unmanned plane in real time and obtaining global position system (GPS) information of the unmanned plane, attitude information, height information, speed information, camera parameter information synchronously downloaded with the image data in the real time; (2) carrying out processing and transformation on the obtained images according to the information of the first step and obtaining the pre-processed images; (3) carrying out overall dynamic image amendment for to-be-spliced images and spliced images; (4) judging image overlapped areas according to the flying direction of the unmanned plane, obtaining templates, and carrying out image matching and image fusion; (5) achieving splicing for the frame image, and then entering the first step to carry out image splicing of the next frame. The method can quickly obtain the flying direction trend of the image of the unmanned plane, shortens matching searching ranges, enables the matching time to be shorter than that of a span practice that adjacent images are downloaded by the unmanned plane, and real-time performance of the image splicing of the unmanned plane is guaranteed.

Description

technical field [0001] The invention relates to the field of image stitching, in particular to a method for real-time stitching of drone images. Background technique [0002] At present, there are many existing image stitching methods, but they all start from the image itself and use methods such as frequency domain for stitching. Due to the large amount of image data, the stitching speed is often not satisfactory. With the maturity of UAV technology, the use of UAVs equipped with photoelectric detectors to perform battlefield reconnaissance missions and obtain panoramic image information of enemy positions in a timely manner has become the most important reconnaissance method for military powers in the world. Indispensable component. The final foothold of drones is in use. Clear video images cannot fully meet the needs of modern operations. The key is how to splicing drone aerial images into panoramic images of enemy positions or important targets in real time. Effective ...

Claims

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Application Information

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IPC IPC(8): G06T5/50G06T3/40G06T5/00
Inventor 郭博雷王勇
Owner NO 27 RES INST CHINA ELECTRONICS TECH GRP
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