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Human face positioning and head gesture identifying method based on multiple features harmonization

A technology of multi-feature fusion and head posture, which is applied in the field of robot vision, can solve the problems of large amount of computation and the need for dual camera systems, etc., and achieve the effect of strong versatility, strong robustness and good effect

Inactive Publication Date: 2005-03-30
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This method is computationally intensive and requires a dual-camera system

Method used

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  • Human face positioning and head gesture identifying method based on multiple features harmonization
  • Human face positioning and head gesture identifying method based on multiple features harmonization
  • Human face positioning and head gesture identifying method based on multiple features harmonization

Examples

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Embodiment

[0057] The face positioning and posture estimation method discussed in the present invention can be widely applied to human-computer interaction, emotional computing, video conference communication and intelligent monitoring systems. Let's take a specific application on a service robot as an example.

[0058] Using head posture to realize the control of the smart wheelchair.

[0059] Smart wheelchairs are a type of service robot specially designed for the elderly and disabled. It is obviously inconvenient to use the mouse and keyboard to control the smart wheelchair. The example given here refers to the use of vision to analyze the user's head Exercise posture to achieve control of the wheelchair.

[0060] When the user sits in the wheelchair, the camera on the wheelchair starts to capture moving images of the face. At the same time, the face positioning and pose estimation system starts to work, estimating the motion state of the face in real time. When the movement of the...

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Abstract

The method includes following steps: determining motion posture of head part; primary orientating human face; pre estimating posture of head part; determining position and posture of head part. The invention discloses effective algorithm for orientating human face and estimating posture, is applicable to analyzing motion of human face in moving scene under variable illumination condition. Advantages are: strong robustness of algorithm, fast calculation speed, and independent from specific person. Validation is carried out on platform of intelligent platform of wheel chair, and shows better effect. High versatility makes the invention possible to apply to lots of system related to human face. The invention is a key technology for realizing intelligent man-machine interaction.

Description

technical field [0001] The invention relates to robot vision, in particular to a method for face localization and head posture recognition based on multi-feature fusion. Background technique [0002] After decades of rapid development, research in the field of robotics has gradually become systematic and mature. At present, various types of robots are used more and more widely in various service fields such as military, industry, aerospace, transportation, medical treatment and human life. As a typical representative of special robots, intelligent service robots are gradually gaining the attention of international and domestic scientific and technological workers and become an active branch of the robotics industry today. Service robots generally refer to robot equipment that is used in various fields of people's daily work and life, can perceive and interact with the external environment, understand the orders given by people, and assist people to complete a certain task. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T5/40
Inventor 谭铁牛魏育成周超
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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