An image quality evaluation method for UAV inspection of transmission lines
A technology for image quality evaluation and power transmission lines, applied in image communication, overhead line/cable equipment, television, etc., can solve problems affecting analysis and processing work, uneven inspection image quality, image transmission damage, etc., to achieve an effective method Evaluation effect
Active Publication Date: 2021-07-13
FUZHOU UNIV
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However, due to the different levels of pilots controlling drones, different environments for shooting inspection images, and damage during image transmission, etc., the quality of the final inspection images is often uneven, which seriously affects the later analysis and processing. Work
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0024] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...
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The invention relates to a method for evaluating the image quality of a power transmission line UAV inspection image, comprising the steps of: making a key component detection training data set and an image definition detection training data set, and simultaneously constructing and training the inspection image key component detection model and inspection Image clarity detection model: input the image to be evaluated into the two trained models respectively, and obtain the type and prediction frame information of the key components in the image from the key component detection model of the inspection image, and obtain the Whether each image block in the image is clear; for each obtained prediction frame, calculate the proportion of clear image sub-blocks in the prediction frame, and filter out the prediction frame that meets the standard; for each prediction frame that meets the definition standard, calculate the prediction frame If the two indicators of the center deviation degree and the proportion of the image are up to the standard, the current prediction frame meets the quality requirements; and then judge whether the current image is a qualified image. The invention can quickly and effectively evaluate the power inspection image.
Description
technical field [0001] The invention relates to the technical field of image quality evaluation, in particular to a method for evaluating the image quality of transmission line UAV patrol inspection. Background technique [0002] The scale of my country's transmission network is getting larger and larger. In order to ensure the safety of the power system, relevant departments need to invest a lot of manpower and material resources in inspections of transmission lines every year. Traditional manual inspections are often costly and risky. With the development of UAV technology, the advantages of UAV's small size and unrestricted geographical conditions have been widely used in power inspections, which not only improves the inspection efficiency, but also reduces the work intensity and danger of inspection personnel, making up for the The lack of manual inspection. [0003] The current UAV power inspection mainly relies on the pilot to control the UAV for image acquisition, an...
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IPC IPC(8): H04N17/00H02G1/02
CPCH02G1/02H04N17/00
Inventor 江灏金志恒刘欣宇缪希仁陈静林志成
Owner FUZHOU UNIV