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Natural interactive method based on three-dimensional gestures

A technology of three-dimensional gestures and interaction methods, which is applied in the fields of user/computer interaction input/output, image data processing, instruments, etc., which can solve the problems of increasing the difficulty of user interaction, aggravating the integration of interactive tasks, unnaturalness, etc., and meeting real-time The effect of human-computer interaction

Active Publication Date: 2010-08-18
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

On the one hand, this method is very unnatural, and increases the difficulty of user interaction, but also increases the integration of interactive tasks

Method used

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  • Natural interactive method based on three-dimensional gestures
  • Natural interactive method based on three-dimensional gestures
  • Natural interactive method based on three-dimensional gestures

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Embodiment Construction

[0017] The natural interaction method based on three-dimensional gestures of the present invention interacts with virtual objects naturally through three-dimensional gestures in a virtual reality or augmented reality environment. Including the following steps:

[0018] 1. Input video images from two cameras, and use the online training skin color detection algorithm to obtain the foreground image of the hand. The online detection training skin color detection algorithm uses the clustering characteristics of human skin color in the YCbCr color space to segment the foreground figure of the hand by determining the specific color range in the video image. In the process of skin color detection, an online training method that learns the current skin color in real time is used to reduce the impact of illumination changes on skin color detection.

[0019] 2. Using the fingertip detection method to detect the position of the fingertip on the obtained hand foreground image. The finge...

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Abstract

The invention discloses a natural interactive method based on three-dimensional gestures, the method utilizes a computer vision technology to obtain local features of a hand by foreground segmentation and fingertip detection, and the local features include fingertip position, palm contour, palm center position and the like. By adopting the stereoscopic vision technology, the hand features such as the fingertip position, the palm center position and the like are reconstructed in the three-dimensional space. The finger tip position, the palm center position and the like in the three-dimensional space are parameterized, and a three-dimensional interactive model based on points, lines and planes is defined, thus realizing various three-dimensional gestures in the three-dimensional space, such as fingertip clicking, fingertip squeezing, palm overturning, fingertip directing and the like. The method needs only two ordinary network cameras to meet the demands of real-time man-machine interaction.

Description

technical field [0001] The invention relates to computer vision and human-computer interaction technology, in particular to a three-dimensional gesture-based human-computer interaction method. Background technique [0002] The traditional two-dimensional human-computer interaction technology (based on mouse / keyboard / joystick / window interface) has been relatively mature and perfect in terms of its software tools and interaction methods. However, with the continuous upgrading of human-computer interaction application requirements, including the increasing pursuit of virtual scene experience by users (called players in games), the limitations of traditional two-dimensional human-computer interaction methods are becoming more and more obvious. exist: [0003] From the perspective of information representation ability, complex multi-dimensional relationships cannot be represented in a natural way. When representing multi-dimensional relationships, it is necessary to use a multi...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06K9/00G06T17/00
Inventor 潘志庚郭康德邵兴旦李扬李光霞
Owner ZHEJIANG UNIV
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