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A method, device, equipment and storage medium for extracting a foreground object

A foreground and target technology, applied in the field of equipment and storage media, foreground target extraction method, and device field, can solve the problems of long modeling and adaptation process, inability to adapt well, camera noise, camouflage of foreground targets with illumination changes, etc. Achieve the effect of accurate background and accurate removal

Active Publication Date: 2021-05-25
GUOGUANG ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these algorithms are fast in operation, they also have certain defects and cannot be well adapted to various situations in reality, such as camera noise, illumination changes, foreground target camouflage, dynamic background or BootStrap situations, etc.; Long modeling and adaptation process

Method used

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  • A method, device, equipment and storage medium for extracting a foreground object
  • A method, device, equipment and storage medium for extracting a foreground object
  • A method, device, equipment and storage medium for extracting a foreground object

Examples

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Embodiment 1

[0022]For video screens, contours, color or textures are characteristics of the main perceived human eye, and the contour can overcome the defects of the pixel level background removal method. The embodiment of the present invention provides a method based on the foreground target extraction method based on the contour extraction, specifically,figure 1 It is a flow chart of an extraction method of a foreground target according to an embodiment of the present invention, and the present embodiment can be applied to the case of processing of the video, the method can be performed by the extraction device of the foreground target, the device can be implemented by software and / / Or hardware is implemented, the method includes the following steps:

[0023]S110, the gradient feature of the input image according to the at least one frame acquires the first foreground profile, and acquires the second foreground profile according to the color feature of the input image of at least one frame.

[0...

Embodiment 2

[0036]figure 2 It is a schematic structural diagram of an extracting apparatus of a foreground target according to Embodiment 2 of the present invention, and the apparatus can perform an extraction method of any of the foreground targets provided by the embodiment of the present invention, which can be implemented by software and / or hardware. The device specific includes:

[0037]The contour acquisition module 210 is used to acquire the first foreground profile according to the gradient feature of the input image at least one frame, and acquire the second foreground profile according to the color feature of the input image at least one frame;

[0038]The angular point extraction module 220 is used to extract angular points that satisfy the first preset condition in the first foreground profile, as a target angular point;

[0039]The curve generating module 230 is used to generate a low threshold edge diagram curve based on the second foreground profile;

[0040]The foreground acquisition modu...

Embodiment 3

[0061]image 3It is a schematic structural diagram of a computer device provided in the third embodiment of the present invention.image 3A block diagram showing an exemplary computer device 12 suitable for implementing the embodiment of the present invention is shown.image 3The displayed computer device 12 is merely one example and should not be restricted to the functions of the embodiments of the present invention.

[0062]Such asimage 3As shown, the computer device 12 is manifested in the form of a general computing device. Component components of computer device 12 may include, but are not limited to, one or more processors or processing unit 16, system memory 28, connecting different system components, including system memory 28, and processing unit 16).

[0063]Bus 18 represents one or more of several types of bus structures, including memory bus, memory controllers, peripheral bus, graphical acceleration port, processor, or a local area bus using any bus structure in a variety of bu...

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Abstract

The embodiment of the invention discloses a method, device, equipment and storage medium for extracting a foreground object. The method includes: obtaining a first foreground contour according to the gradient feature of at least one frame of input image, and obtaining a second foreground contour according to the color feature of at least one frame of input image; extracting the first foreground contour that satisfies the first preset condition A corner point is used as a target corner point; a low-threshold edge map curve is generated according to the second foreground profile; the target corner points are connected according to the low-threshold edge curve, and the connected foreground profile is filled to obtain a final foreground target . The embodiment of the present invention extracts the foreground contour according to the gradient feature and the color feature respectively, and combines the two foreground contours to determine the final foreground target, which can well overcome the inability of the foreground extraction algorithm in the prior art to adapt well to various situations The problem can remove the background more accurately and obtain the foreground target.

Description

Technical field[0001]Embodiments of the present invention relate to image processing techniques, and more particularly to an extraction method, apparatus, apparatus, and storage medium of a foreground target.Background technique[0002]In the field of video processing, background removal is the basic problem of video processing, widely used in video surveillance. At present, most background removal algorithms, or change detection algorithms or foreground extraction algorithms are pixel levels, such as mixed Gaussian model, Vibe, Subsense and other algorithms. Although these algorithms are faster, there is a certain defect, and it is not possible to adapt to the various situations in reality, such as camera noise, light changes, prospectic camouflage, dynamic background or bootstrap situations; and these algorithms need more Long modeling and adaptation process. Therefore, how to investigate a precise background removal method is an urgent problem to be solved.Inventive content[0003]Em...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/34G06K9/46G06T7/12
CPCG06T7/12G06V10/267G06V10/56
Inventor 邓苗
Owner GUOGUANG ELECTRIC