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An image processing method and device

An image processing device and image processing technology, applied in image data processing, image analysis, image enhancement and other directions, can solve problems such as poor alignment effect and difficulty in feature point detection, achieve good alignment effect, avoid image alignment difficulties, reduce Effects of Computational Complexity

Active Publication Date: 2021-06-15
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when there are repeated textures, weak textures, no textures, and large foreground interference in the image, it will make it difficult for the system to detect the feature points of the image, which in turn makes the image alignment based on feature points less effective.

Method used

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  • An image processing method and device
  • An image processing method and device
  • An image processing method and device

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. 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.

[0031] For a group of images taken under different conditions for the same object (such as a group of images from different acquisition devices, a group of images taken at different times, a group of images taken from different perspectives, etc.), the When a group of images is fused or compared, the group of images needs to be aligned; or, sometimes for a group of images taken under different conditions for different subjects, it is also necessary to perform alignment when the group...

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Abstract

Embodiments of the present application provide an image processing method and device. In this method, the terminal acquires the scene depth of the distance from the first camera to the subject D , to query the scene depth D The corresponding homography transformation matrix in the homography transformation matrix table, which includes different scene depths D The corresponding homography transformation matrix, each scene depth D The corresponding homography transformation matrix is ​​obtained based on the camera parameters of the first camera and the camera parameters of the second camera, and then the first image is transformed based on the query homography transformation matrix to obtain the transformed first image, the The first image is obtained by shooting the subject with the first camera. It can be seen that the converted first image in the embodiment of the present application and the second image captured by the second camera for the same subject have a better alignment effect. In addition to obtaining a high-quality fused image, calculation complexity can also be reduced.

Description

technical field [0001] The present application relates to the field of electronic communication, in particular to an image processing method and device. Background technique [0002] Image alignment is a key technology in the field of image processing research. Its purpose is to fuse images obtained separately for the same subject under different conditions, that is, image alignment is required before merging images obtained separately for the same subject under different conditions. . At present, image alignment methods mainly calculate a homography transformation matrix based on feature points, and then use the homography transformation matrix to transform one of the images to align with the other image. However, when there are repeated textures, weak textures, no textures, and large foreground interference in the image, it will make it difficult for the system to detect the feature points of the image, which in turn makes the image alignment based on feature points less ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/33G06T7/80
CPCG06T2207/10016G06T7/337G06T7/80
Inventor 周奥宋利伟
Owner SPREADTRUM COMM (SHANGHAI) CO LTD