Method for extracting foreground in piggery monitoring video

A technology for foreground extraction and monitoring video, which is applied in the fields of intelligent video target detection, pig house fixed camera monitoring video pig extraction, and video monitoring foreground target extraction fields.

Inactive Publication Date: 2011-04-20
JIANGSU UNIV
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the existing pig video foreground target extraction method, and propose a method for extracting the foreground in the pig house monitoring video with good robustness, good effect and good real-time performance, which can retain the accurate foreground edge of the video frame , and eliminate common methods that easily lead to the coexistence of voids, smears, and shadows in the foreground, and can suppress the impact of electronic noise, ground water stains, and changes in excrement traces on the foreground

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  • Method for extracting foreground in piggery monitoring video
  • Method for extracting foreground in piggery monitoring video

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Embodiment Construction

[0016] When the present invention is implemented, a camera system and a computer control system are installed in the piggery area of ​​a large-scale pig farm. Frame module, motion analysis processing frame module, foreground fusion module, background update module, shadow detection module and foreground extraction module. The ground of the piggery area of ​​a large-scale pig farm is a concrete floor, with some excrement left on it, and the background light of the entire video is bright. Perform adjacent symmetrical frame difference and background frame difference with parallel algorithm, perform foreground motion analysis according to the output variables of adjacent symmetrical frame difference and background frame difference, obtain state code, and use state code as control condition to perform parallel adaptive background update and The first two frames are differentially fused to obtain the foreground including the shadow, and the shadow detection module calculates the loc...

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Abstract

The invention discloses a method for extracting foreground in piggery monitoring video. The method comprises the steps of firstly acquiring an initial background frame containing no foreground and a background frame sequence containing the foreground, then carrying out adjacent symmetric frame difference and background frame difference, carrying out foreground motion analysis according to the adjacent symmetric frame difference and the background frame difference, acquiring a status code, updating background and fusing the two frame differences by utilizing the status code so as to acquire a shade containing foreground, calculating background Euclidean distance of local texture operators and S (saturation) and H (hue) channel background frame difference of HSV (hue-saturation-value) colour space, combining shade discriminating conditions, and finally extracting a foreground frame according to result of pixel attribute values. The invention is applicable to piggery monitoring of large-scale piggery farms, has adaptability, robustness and higher foreground target segmentation accuracy and creates favorable conditions for subsequent work which is pig video intelligent analysis.

Description

technical field [0001] The invention relates to a method for extracting foreground targets of video monitoring, in particular to a method for extracting video pigs monitored by a fixed camera in a pig house, and is specifically applicable to the technical field of intelligent video monitoring in pig farms, and belongs to the technology of intelligent video target detection. Background technique [0002] Video surveillance foreground target extraction is a technology that removes the background in each frame of the video frame sequence, detects the foreground target and segments it out. The foreground extraction method is divided into two categories: fixed and mobile according to the camera device, and divided into two categories: rigid body and non-rigid body according to the characteristics of the foreground object. The foreground extraction method in pig house surveillance video belongs to the non-rigid body foreground extraction technology of fixed camera. [0003] Dr. Z...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46H04N7/18
Inventor 朱伟兴纪滨
Owner JIANGSU UNIV
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