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Moving target detection method, device, medium and computing device

A moving target and detection method technology, applied in the field of image processing, can solve problems such as unsatisfactory effects

Active Publication Date: 2020-10-27
明见(厦门)技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a moving object detection method, device, medium and computing equipment to solve the problems in the prior art that the effect of the moving object detection based on the saliency map is not ideal.

Method used

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  • Moving target detection method, device, medium and computing device
  • Moving target detection method, device, medium and computing device
  • Moving target detection method, device, medium and computing device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0026] refer to figure 1 , which is a schematic flow chart of the moving target detection method provided in Embodiment 1 of the present application, the method includes the following steps:

[0027] Step 101: extract the grayscale feature, direction feature, optical flow feature of the current frame image and the inter-frame difference feature of the current frame image in the specified image set, wherein the specified image set is an image composed of consecutive frame images containing the current frame image gather.

[0028] Wherein, in one embodiment, grayscale features, direction features, optical flow features and inter-frame difference features can be extracted according to the following methods:

[0029] (1) Grayscale features:

[0030] Assuming that the red, green and blue channels of the current frame image are r(t), g(t), and b(t) respectively; then the grayscale feature of the image can be expressed as shown in formula (1):

[0031] I(t)=(r(t)+g(t)+b(t)) / 3 (1) ...

Embodiment 2

[0102] Based on the same inventive concept, the embodiment of the present application also provides a moving object detection device. The principle and beneficial effects of the device are similar to those described in the above method embodiments, and will not be repeated here.

[0103] Such as figure 2 Shown is a schematic structural diagram of the device, including:

[0104] The feature extraction module 201 is used to extract the grayscale feature, direction feature, optical flow feature of the current frame image and the inter-frame difference feature of the current frame image in the specified image set, wherein the specified image set is a continuous frame containing the current frame image An image collection composed of images;

[0105] A feature weight acquisition module 202, configured to acquire various corresponding weights of grayscale features, directional features, optical flow features, and inter-frame difference features;

[0106] The feature fusion module...

Embodiment 3

[0138] Embodiment 3 of the present application also provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), and the like. Such as image 3 As shown, the computing device may include a central processing unit (Center Processing Unit, CPU) 301, a memory 302, an input device 303, an output device 304, etc., the input device may include a keyboard, mouse, touch screen, etc., and the output device may include a display device, Such as liquid crystal display (Liquid Crystal Display, LCD), cathode ray tube (Cathode Ray Tube, CRT) and so on.

[0139] The memory may include read only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiment of the present application, the memory may be used to store program instructions of the moving object detection method.

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Abstract

The present invention relates to the image processing technology field, especially to a moving object detection method and device, a medium and a calculation device. The features for generating a saliency map in the embodiment of the invention comprise static features and dynamic features, wherein the static features comprise gray features, direction features and the like, and the motion features comprise light stream features, frame difference features and the like. The motion features are introduced to allow the saliency map to comprise more motion information so that the generated saliency map is more reasonable, and the moving object detected based on the saliency map is more accurate. In the embodiment of the invention, a space saliency map and a motion saliency map are fused to obtain a space-time saliency map to further allow the extraction of the saliency map to comprise motion information so as to allow the detection of the moving object to be more reasonable.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a moving object detection method, device, medium and computing equipment. Background technique [0002] The purpose of moving object detection is to detect objects whose positions change in consecutive frame images. This technology is a core technology of advanced assisted driving technology and smart car technology. By detecting the moving target in the image, the driver can be warned of the emergence of a dangerous environment, which can effectively reduce the risk of the driver colliding with the car and the pedestrian being hit. [0003] Using saliency maps to detect moving objects is a common method for moving object detection. In this method, the saliency map is obtained by analyzing the characteristics of the image such as intensity, color, and direction. However, these information are only the underlying information of the image, and the obtained sal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/246
CPCG06T2207/10016G06T7/246
Inventor 陈海沯陈从华叶德焰谢超任赋
Owner 明见(厦门)技术有限公司