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Image background modeling and foreground extraction method and apparatus, and electronic device

A technology for background modeling and foreground extraction, which is applied in the fields of devices and electronic equipment, image background modeling and foreground extraction methods, and can solve problems such as inability to filter out ghost areas in real time, misjudgment of stationary objects as ghosts, and poor effects. , to achieve the effect of solving the problem of inability to filter out ghost areas in real time, filtering out ghost images in real time, and high robustness

Active Publication Date: 2019-04-19
QINGDAO PICO TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main problem of this technology is that it will misjudge stationary objects as ghost images; the second is that it cannot filter out the ghost image area in real time, and the effect is poor.

Method used

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  • Image background modeling and foreground extraction method and apparatus, and electronic device
  • Image background modeling and foreground extraction method and apparatus, and electronic device
  • Image background modeling and foreground extraction method and apparatus, and electronic device

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] figure 1 It is a flowchart of an image background modeling and foreground extraction method according to an embodiment of the present invention, see figure 1 , the image background modeling and foreground extraction method of the present embodiment include the following steps:

[0023] Step S101, initialize a multi-layer depth background model, and perform background subtraction and connected region analysis on an inp...

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Abstract

The invention discloses an image background modeling and foreground extraction method and device and electronic equipment, and the method comprises the steps: initializing a multi-layer depth background model, and carrying out the background subtraction and connected region analysis of an input depth image; Judging whether the image is a ghosting area or not; Extracting a first foreground target mask and a second foreground target mask from the non-ghost area; Judging whether each pixel point belongs to a background pixel point or a foreground pixel point, and determining the background pixelpoint needing to be updated; enabling The background pixel points needing to be updated to be subjected to secondary inspection, if the background pixel points needing to be updated are in the ghosting area and the distance between the background pixel points needing to be updated and the calibration boundary is smaller than a third threshold value, not updating the pixel points, and otherwise, updating the pixel points. According to the embodiment of the invention, background modeling and foreground extraction are carried out based on images of the depth image and the infrared image, the stability is good, the complexity is low, the robustness is high, and ghosts can be filtered in real time.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image background modeling and foreground extraction method, device and electronic equipment. Background technique [0002] Currently, an important step in background modeling and foreground extraction is ghost removal. Ghosting, that is, the foreground block at the false detection, when the pixel is wrongly identified as the background pixel, it may cause the real background pixel to be considered as the foreground pixel, and these pixels will not be used to update the background model , which is the cause of ghosting. Existing ghost image elimination technologies generally combine information of multiple frames of images to eliminate ghost images. The main problem of this technology is that it will misjudge stationary objects as ghost images; the second is that it cannot filter out the ghost image area in real time, and the effect is poor. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/194G06T7/187G06T7/136G06T7/254
CPCG06T7/136G06T7/187G06T7/194G06T7/254
Inventor 张丛薄王贵东吴涛
Owner QINGDAO PICO TECH CO LTD
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