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Apparatus and method for identifying gazing direction of human eyes and its use

A gaze direction, human eye technology, applied in character and pattern recognition, instruments, biological neural network models, etc., can solve problems such as lack of naturalness and convenience, and achieve the effect of natural design, active response, and reduction of misjudgment rate

Inactive Publication Date: 2003-06-11
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, from the point of view of "people-oriented", there are still many unnatural and convenient places in the use of such devices.

Method used

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  • Apparatus and method for identifying gazing direction of human eyes and its use
  • Apparatus and method for identifying gazing direction of human eyes and its use
  • Apparatus and method for identifying gazing direction of human eyes and its use

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Embodiment Construction

[0015] The present invention is described in detail as follows with reference to accompanying drawing:

[0016] As shown in 1, the technological process of image acquisition and processing of the present invention comprises following 5 steps:

[0017] (1) Motion recognition and judgment of whether there are people in the scene

[0018] Use the time difference method for motion recognition: first select a relatively fixed background image, collect a new image and subtract it from the background image at regular intervals, and determine whether there is a moving object in the scene from the difference image. Once a moving object is found to enter the scene, the image of the moving object is segmented and further processing is started; otherwise, the next round of motion recognition is continued. If there is a moving object entering the scene, use the feedforward neural network to identify the skin color of the extracted moving image. When an object with the same skin color as a...

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Abstract

The invention includes the hardware devices composed of the pick-up head, the image interface and the processor, the time periodic image collection, the recognizing the direction of the person's eye gazing at as well as the non-contact intelligent control technique. In the said non-contact intelligent control technique, the direction of the person's eye gazing at is used as the control command or the auxiliary information. The invention can be applicable to home appliances, game machines, curing and nursing instruments or as the non-contact control devices for handicapped people etc. The gazing method can turn on or off some simple appliances such as air conditioners, 'waken' the robot or computer in the standby state. The gazing method also can indicate the user's intended control command.

Description

Technical field [0001] The invention relates to machine vision and automatic control technology, in particular to a device and method for recognizing gaze direction of human eyes and its application in intelligent control. The invention is a new technology for judging the gaze direction of human eyes based on video images. This technology does not require additional auxiliary equipment except for a single camera, a processor and an image interface. The recognition method is simple and fast, and can be used in machine vision and intelligence Many application fields of control make the machine's response to humans more active, friendly and accurate. Background technique [0002] In the process of human-human interaction, human beings have a very sensitive ability to distinguish facial expressions, especially the gaze direction of human eyes, while machine vision is still at a very low level compared with human vision. Level. The identification of the existing gaze direction ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06N3/02
Inventor 张延炘王勇袁景和
Owner NANKAI UNIV
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