Method and apparatus for distortion image correction

An image correction and image technology, applied in the field of image processing, can solve problems such as high algorithm complexity, long image processing time, and affecting real-time signal transmission in digital operating rooms, etc., to improve processing efficiency, reduce algorithm complexity and image processing time, to ensure real-time effect

Inactive Publication Date: 2019-01-22
QINGDAO HISENSE MEDICAL EQUIP
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Problems solved by technology

[0003] In the prior art, there are many methods for correcting distorted images, which have the problems of high algorithm...

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  • Method and apparatus for distortion image correction
  • Method and apparatus for distortion image correction
  • Method and apparatus for distortion image correction

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[0054] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in this application. Obviously, the described embodiments are part of the embodiments of this application , but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0055] The distorted image correction method in the prior art has the problems of high algorithm complexity and long image processing time, which affects the real-time performance of digital operating room signal transmission. In order to solve this problem, this application provides a distorted image correction method and The device can be applied to imaging equipment such as a digital operating room operating fi...

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Abstract

A method and apparatus for distortion image correction are provided. The method comprises the following steps of: determining a distortion function of an image pickup device according to an original distortion image and a calibration template image, and correcting a geometric position of the original distortion image according to the distortion function to obtain a first distortion image; converting a first distorted image from an RGB image format to a YCbCr image format, and determining brightness values and color difference values of initial pixel points on the first distorted image in the YCbCr image format; correcting the brightness value and color difference value of the initial pixel point according to a preset rule to determine the corrected image. The preset rule is that the pixelpoint with the smallest distance from the initial pixel point is determined as the target pixel point, and the brightness value and color difference value of the target pixel point are determined as the brightness value and color difference value of the pixel point mapped to the correction image by the initial pixel point. Thus, the algorithm complexity and image processing time are reduced, and the real-time signal transmission in the digital operating room is ensured.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a distorted image correction method and device. Background technique [0002] With the rapid development of medical surgery, the medical digital operating room, which integrates traditional lens technology, modern computer technology, microelectronics technology and other high-tech, has become a very widely used operating room. Doctors observe the tissue shape of human internal organs and pathological changes in the body through the digital operating room camera or endoscopic lens, and can conveniently carry out diagnosis and remote teaching. In order to improve the accuracy of diagnosis, surgical images in the digital operating room have higher requirements for image restoration. Serious distortion is not allowed in surgical images. Image distortion affects the effect of the surgical field camera and even affects the doctor's correct judgment of the lesion. A...

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/006G06T2207/10024
Inventor 张涛闵令伟景静静
Owner QINGDAO HISENSE MEDICAL EQUIP
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