Method for quick-speed human-computer interaction based on finger tip tracking

A human-computer interaction and fast technology, applied in the input/output of user/computer interaction, computer components, mechanical mode conversion, etc., can solve the problems that are not suitable for many people, limit the range of activities of users, lack of flexibility, etc. problem, to achieve the effect of outstanding distance robustness, high practicability, and improved perception efficiency

Inactive Publication Date: 2009-12-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the rapid development of personal smartphones and other smart devices, most of the current daily applications use hand tracking is limited to a small range, that is, the collected video does not contain other parts except the hands, whi

Method used

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  • Method for quick-speed human-computer interaction based on finger tip tracking
  • Method for quick-speed human-computer interaction based on finger tip tracking
  • Method for quick-speed human-computer interaction based on finger tip tracking

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the examples, but it should be noted that the examples are not intended to limit the protection scope of the present invention.

[0032] Such as figure 1 As shown, the fast human-computer interaction system based on fingertip tracking includes a wide-angle high-definition camera 101 , a DSP (Digital Signal Processor) device 102 and a computer 106 . DSP equipment 102 comprises image acquisition unit 103, signal conversion unit 104 and image preprocessing unit 105; Wide-angle high-definition camera head 101 is connected with image acquisition unit 103 signal of DSP equipment 102, and image acquisition unit 103 is connected with signal conversion unit 104 and image preprocessing unit 105 is sequentially connected in signal; the image preprocessing unit 105 is connected in signal with the computer 106 . Adopt wide-angle high-definition camera 101 to detect, image acquisition is performed by image acq...

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Abstract

The invention discloses a method for quick human-computer interaction based on finger tip tracking, which comprises the following steps: firstly, preprocessing an image, adopting a wide-angle high-definition camera to perform high-resolution image pick-up on an indoor area, and performing image geometric distortion correction on the obtained images; secondly, extracting hand images, processing the obtained corrected images by a skin color filter, a motion filter and a color splitter, merging the results, and splitting the hand images out of the obtained corrected images; and finally, performing finger tip positioning: applying a histogram to perform rough finger tip positioning, using the rough position of a finger tip as a center to construct a searching window, and performing precise finger tip positioning through template matching. The method effectively improves the perceiving efficiency of scene images, achieves finger detection and positioning in a large range, judges the image distance between two eyes as a basis to perform the finger tip positioning without prior knowledge of the environment, and has outstanding distance robustness.

Description

technical field [0001] The invention relates to a human-computer interaction method based on fingertip tracking, belongs to the field of computer vision and video tracking, and is suitable for the human-computer interaction link in a virtual reality system. Background technique [0002] Human-computer interaction technology is one of the key technologies of virtual reality system, which realizes the interaction between human and computer, real world and virtual world. Gestures are a natural and intuitive form of human communication. Vision-based hand tracking and gesture recognition is an essential technology for realizing a new generation of human-computer interaction. [0003] In human-computer interaction, hand tracking mainly includes methods such as data gloves and visual recognition. [0004] Data glove, that is, a person can wear a sensor similar to a glove, and the computer can obtain rich information such as the position of the hand and the extension of the finger...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06K9/00G06K9/46
Inventor 徐向民
Owner SOUTH CHINA UNIV OF TECH
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