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Gesture recognition method and gesture recognition control-based intelligent wheelchair man-machine system

A gesture recognition, human-machine system technology, applied in character and pattern recognition, patient chairs or special transport tools, computer parts and other directions, can solve problems such as difficult application, poor gesture recognition effect, etc. Range of motion and quality of life, effects of accurate recognition of gesture commands

Inactive Publication Date: 2012-02-01
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0006] In view of this, in order to solve the above-mentioned problems, the technical problem to be solved by the present invention is that, in the existing existing intelligent wheelchair man-machine system system and gesture recognition method based on gesture control, gesture recognition can only be used in simple environments. Gesture recognition in complex environments is poor and difficult to apply in real life

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[0040] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0041] figure 1 The flow chart of the gesture recognition system using the method of combining tracking and recognition for the present invention; as shown in the figure: the gesture recognition method provided by the present invention includes the following steps:

[0042] S1: Obtain a video signal containing human hand gestures through the camera;

[0043] S2: Convert the image in the video signal from the RGB image space to the HSV image space, and establish the HSV color distribution histogram of the gesture area;

[0044] Among them, R, G, and B represent three channels of red, green, and blue respectively; H, S, and V represent hue, saturation, and brightness res...

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Abstract

The invention discloses a gesture recognition method and a gesture recognition control-based intelligent wheelchair man-machine system, and relates to the fields of computer vision, man-machine systems and control. The system comprises a video acquisition module, a separator, a query module, a tracking module, a gesture pretreatment module, a characteristic extraction module, a gesture recognition module and a control module. In the method, a hand is tracked by combining a Camshift tracking algorithm with a Kalman filtering algorithm, and a gesture is separated and is recognized by combining Hu moment with a support vector machine (SVM). By the gesture recognition method, the influence of skin color interference, shielding and a peripheral complex environment on gesture segmentation can be eliminated, and the hand is accurately tracked and quickly and accurately recognized; and when the gesture recognition method is used in the gesture recognition control-based intelligent wheelchair man-machine system, the aims of quickly and accurately recognizing a gesture command and safely controlling an intelligent wheelchair can be fulfilled, and the activity range and life quality of old people and disabled people can be improved.

Description

technical field [0001] The invention relates to the fields of computer vision, man-machine system and control, in particular to gesture tracking recognition and an intelligent wheelchair man-machine system based on gesture recognition control. Background technique [0002] With the acceleration of population aging process, there are more and more elderly people. The number of handicapped people due to congenital disabilities or various acquired disasters and diseases is also increasing year by year, and most of them have different degrees of loss of walking ability. It is necessary to provide the elderly and the disabled with superior performance means of transportation to help them improve their freedom of movement and reintegrate into society. Smart wheelchairs are used to solve this problem because of their very good autonomy and interactivity. [0003] Smart wheelchairs are human-centered control systems. The control system of smart wheelchairs is not designed to be as...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00A61G5/10
Inventor 张毅李敏罗元徐晓东蔡军谢颖林海波张姣
Owner CHONGQING UNIV OF POSTS & TELECOMM
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