Method and system for recognizing human shape in smart home scene

A smart home, humanoid technology, applied in character and pattern recognition, instruments, computer parts, etc., to achieve the effect of low latency, low hardware requirements, and low complexity

Inactive Publication Date: 2018-01-16
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

A human figure recognition method and system in the smart home scene proposed by the present invention can detect whether there is a stranger intruding in the home environment, and solve the user's problem of monitoring home safety

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  • Method and system for recognizing human shape in smart home scene
  • Method and system for recognizing human shape in smart home scene
  • Method and system for recognizing human shape in smart home scene

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing and specific embodiment the technical solution of the present invention is described in further detail:

[0039] The present invention proposes a method and system for human figure recognition in a smart home scene. First, a terminal camera captures an image in real time, and selects a background image that does not contain people in a home scene, and performs preprocessing on the current frame and the background image. Obtain the human figure contour map by the background subtraction method, fill the holes in the human figure contour with the morphological method, perform pixel distribution histogram and pixel gradient distribution histogram statistics on the horizontal and vertical directions of the human figure contour map, and obtain the coordinate information of the human figure feature points , build a head-shoulder model, calculate the head-shoulder ratio to determine whether it is a human figure, calculate the curvat...

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Abstract

The invention discloses a method and device for recognizing the human shape in a smart home scene. The method comprises the steps of firstly capturing images in real time through a terminal camera, selecting a background image which does not contain a figure in the smart home scene, and performing preprocessing on the current frame and the background image; obtaining a human shape contour image according to a background subtraction method, filling holes in the human shape contour by using a morphological method, performing pixel distribution histogram and pixel gradient distribution histogramstatistics on the human shape contour image in the horizontal and vertical directions to obtain coordinate information of human shape feature points, building a head-shoulder model, calculating a head-shoulder ratio so as to be used for judging whether there is a human shape or not, calculating the shape feature based curvature, comparing the calculated curvature with a human shape curvature library for human shape recognition. If there is a stranger at present according to human shape recognition, the system sends alarm information to a client and transmits the current image to the client. The method and system disclosed by the invention can be widely applied to the smart home scene, bring comfortable and safe enjoyment to users and have very wide application scenes.

Description

technical field [0001] The invention relates to a method and system for human figure recognition in a smart home scene, belonging to the field of smart home. Background technique [0002] Human figure recognition refers to obtaining the shape outline of a person in an image, extracting features such as human feature points and contour curves, and recognizing the human figure. [0003] On the other hand, the human figure recognition of online video is more complicated. It is necessary to decompose the video stream into frame-by-frame pictures, use the background subtraction method to obtain the current contour map, extract feature points to build a head and shoulders model, and determine whether the contour is human-shaped. Perform humanoid recognition. However, in today's market, smart home devices with human figure recognition functions are still relatively rare. Most human figure recognition products only stay on remote video monitoring functions and infrared sensors, and...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/40G06K9/46
Inventor 张晖张迪
Owner NANJING UNIV OF POSTS & TELECOMM
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