Synchronization method and device for telemetry data and video image data
A technology of video image and telemetry data, which is applied in the direction of image communication, color TV parts, TV system parts, etc. It can solve the problems of large computing resources and time, large amount of calculation, time-consuming and labor-intensive, etc., and improve processing efficiency , reduce the amount of calculation and ensure the effect of accuracy
Active Publication Date: 2019-09-24
STATE OCEAN TECH CENT +1
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Problems solved by technology
[0003] In order to solve the problem of data synchronization, an existing method is to use a manual method to compare and synchronize the location of the telemetry data and the video content. This method is not only time-consuming and laborious, but also the synchronization results are not ideal due to the limitations of manual processing.
Another approach is to use the image matching method to calculate the relative position. Because the image matching algorithm has a large amount of calculation, low efficiency, and consumes too much computing resources and time, it cannot be effectively applied in actual video processing.
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[0039] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. 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.
[0040] figure 1 It is a schematic flowchart of a method for synchronizing telemetry data and video image data provided by an embodiment of the present invention.
[0041] Such as figure 1 As shown, the method includes:
[0042] Step 101, obtaining telemetry data and video image data to be synchronized;
[0043] Step 102, extracting a sequence of key image frames from the video image data, wherein the sequence of key image frames incl...
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The embodiment of invention discloses a synchronized method and device for telemeasuring data and video image data, comprising: acquiring the non-synchronized telemeasuring data and video image data; extracting the key image frame sequence from the video image data, and the key image frame sequence comprises multiple image frames in the adjacent image frames; determining the corresponding center sequence of the video area according to the telemeasuring data; matching the key image frame sequence with the center sequence of the video area; implementing interpolation processing for the telemeasuring data according to the matching result, to get the telemeasuring date under synchronization with the video image data. The synchronized method and device for telemeasuring data and video image data achieves synchronization of the video image data and telemeasuring data, and ensures synchronization accuracy, meanwhile, the calculated amount consumed for image matching is greatly reduced via the key image frame extraction technology, and the processing efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of telemetry data processing, in particular to a method and device for synchronizing telemetry data and video image data. Background technique [0002] For example, during the flight of a drone, video image data and telemetry data are recorded and stored separately. Among them, the video image data is generated and stored by the payload of the drone, and the telemetry data is generated and stored by the flight control system. After the end, the video image data file and the telemetry data file are generated respectively. Due to factors such as communication delays and unstable links, video image data and telemetry data are often asynchronous, that is, video image data and telemetry data cannot be mapped one-to-one. However, with the gradual deepening and refinement of the analysis and analysis of the data, the telemetry data and the video image data need to be processed synchronously. [0003] In order to ...
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IPC IPC(8): H04N5/265
Inventor 丁宁赵恩伟刘惠李明王厚军曹品廉吴进田春华谷连军纵蕴瑞
Owner STATE OCEAN TECH CENT