Distorted image correction method and device
An image and reference image technology, applied in image enhancement, image data processing, graphics and image conversion, etc., can solve problems such as accuracy decline and comparison network false positives, and achieve the effect of improving the correction calculation speed and improving the effect of distorted image correction.
Pending Publication Date: 2020-05-15
WATRIX TECH CORP LTD
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[0004] Due to mechanical vibration, temperature and humidity changes and other factors when the line array camera is shooting, the objects in the detection image will have nonlinear radial distortion, which will lead to false positives in the comparison network, resulting in a decrease in accuracy
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[0025] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not 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.
[0026] It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inh...
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The embodiment of the invention provides a distortion image correction method. The method comprises the following steps: acquiring a reference image and a detection image; and comparing the referenceimage with the detection image to obtain the distortion degree of the detection image, and calculating the size of the correction pixel block according to the distortion degree. Dividing the detectionimage into a plurality of correction pixel blocks according to the sizes of the correction pixel blocks, traversing each correction pixel block, and calculating the corresponding actual width of eachcorrection pixel block in the reference image. And zooming each correction pixel block according to the corresponding actual width of each correction pixel block in the reference image, and splicingthe zoomed correction pixel blocks to obtain a corrected image. According to the invention, the division size of the correction pixel block is determined according to the distortion degree of the object in the detection image, and the detection image can be divided into a proper number of correction pixel blocks, thereby improving the correction calculation speed of the detection image, and realizing a better distortion image correction effect under the condition that the correction calculation of the distortion image is quicker.
Description
Technical field [0001] The embodiment of the present invention relates to the technical field of track line detection, in particular to a method and device for correcting a distorted image. Background technique [0002] At present, with the construction and development of cities, the demand for rail transit construction is gradually increasing. In order to ensure driving safety, it is necessary to conduct real-time detection of the environment on the entire line and quickly respond to abnormalities (foreign objects, track deformation, etc.). However, because most of the tracks are built underground or on viaducts, and the length of the line is increasing, the difficulty and cost of using manual inspection are gradually increasing. Now it is gradually beginning to use automatic detection technology based on deep neural networks-by detecting the images returned by the camera regularly to automatically compare to determine whether an abnormality has occurred. In the prior art, a d...
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Login to View More IPC IPC(8): G06T3/40G06T5/00G06T5/30
CPCG06T3/4038G06T5/30G06T5/00G06T5/80
Inventor 黄永祯王继隆曹春水杨家辉
Owner WATRIX TECH CORP LTD