Inter-image change detection method and device

A detection method and image-to-image technology, applied in the field of image processing, can solve the problem of low accuracy of detection results

Active Publication Date: 2020-07-07
XINJIANG UNIVERSITY
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the present invention provides a method and device for detecting changes between images, the main purpose of which is to solve the problem of low accuracy of detection results of changes between images in the process of detecting changes between images

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[0045] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0046] In order to improve the accuracy of the detection results of changes between images, an embodiment of the present invention provides a detection method for changes between images, such as figure 1 As shown, the method includes:

[0047] 101. Perform a morphological filtering operation on a target image in an image set to obtain a filtered image.

[0048] Wherein, the image set includes at least two target images for detecting image chan...

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Abstract

The invention discloses an inter-image change detection method and device, relates to the technical field of image processing, and aims to solve the problem that the accuracy of a detection result isinfluenced due to the fact that the detection of the inter-image change is easily interfered by the influence of sensor noise when a monitoring area is not changed under the condition of low illumination. The method comprises the following steps: executing morphological filtering operation on a target image in an image set to obtain a filtered image; respectively processing the target images in the image set by using a compression logarithm ratio operator and a mean value ratio operator to obtain a difference image of each target image, and performing equal-weight fusion operation on the difference images of the plurality of target images to obtain a fused difference image; compressing the fused difference image through a preset processing function to obtain a normalized fused difference image, and performing median filtering operation on the normalized fused difference image to obtain a final difference image; and clustering the final difference image through a preset clustering algorithm, and determining the change between the images according to a clustering result. The method is suitable for detecting changes between images.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for detecting changes between images. Background technique [0002] With the development of social economy and computer vision, video surveillance has been widely used due to its intuitive, accurate and real-time characteristics. During the monitoring process, it is often determined based on the changes between images whether people or objects pass through the monitored area. Among them, the commonly used method for detecting changes between images is the two-temporal image change detection method. This method is a method that compares images taken at two different times in a certain scene without knowing the prior knowledge of the target. Differential regions are detected from the scene to determine changes between images. [0003] At present, the existing detection of changes between images is often based on the existence of a certain change betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T5/30G06T5/50G06K9/62
CPCG06T7/0002G06T5/002G06T5/30G06T5/50G06T2207/20032G06T2207/20036G06T2207/20221G06F18/23213
Inventor 贾振红朱勇
Owner XINJIANG UNIVERSITY
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