Hand Tracking Method for Arbitrary Hand Shape

A human hand and hand shape technology, applied in the field of gesture interaction, can solve problems such as low precision, gesture control fatigue, and slow movement speed, etc., achieve high real-time performance, low computing cost, and improve tracking accuracy.

Active Publication Date: 2016-01-20
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The former can get a better tracking effect and accuracy rate under a fixed hand shape, but the big defect is that the hand shape is fixed; the latter can overcome the problem of hand shape change to a certain extent, but the speed of change and movement is not very fast, and the accuracy not tall
This makes gestures have great limitations in human-computer interaction applications
Excessive restrictions on the shape and movement of human hands will bring fatigue and cumbersome problems in gesture control, which cannot meet the original intention of natural and comfortable gesture control.

Method used

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  • Hand Tracking Method for Arbitrary Hand Shape
  • Hand Tracking Method for Arbitrary Hand Shape
  • Hand Tracking Method for Arbitrary Hand Shape

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Embodiment Construction

[0018] The technical solution will be further described below in conjunction with multiple drawings.

[0019] see figure 1 , an embodiment of the present invention provides a method for tracking a human hand with arbitrary hand shape and improving accuracy based on a background model. The method comprises the steps of:

[0020] Step S201: Obtain an initialized background image. Specifically, this step adopts the average method, using the formula: Average the image frames (sequence) obtained within a period of time T to obtain an initialized background image, where B 0 Indicates the initialized background image, I i Indicates the i-th image frame.

[0021] Step S203: Obtain the starting position of the human hand tracking according to the background image, and obtain the tracking region of interest accordingly. In this embodiment, the gesture detection classifier is used to search for the position of the human hand in the image, and a circular area with a radius of r cen...

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Abstract

The invention provides a tracing method of an arbitrary hand-shaped human hand, comprising the following steps of: acquiring an initialized background image; acquiring a human hand tracing initial position, and acquiring a tracing interested region according to the human hand tracing initial position; acquiring image interframe difference motion information, and acquiring an initial position region of a current human hand according to the motion information in an interested region position; updating background image information according to a preset formula; acquiring a human hand division image according to the updated background image information; and calculating the human hand position after division according to the human hand division image, and acquiring a new interested region according to the human hand position.

Description

technical field [0001] The invention relates to gesture interaction technology, in particular to a method for tracking human hands with arbitrary hand shapes. Background technique [0002] With the continuous development of computer vision technology, gesture interaction technology has been gradually popularized and applied. The core of gesture interaction based on computer vision is to use computer vision, image processing and other technologies to process the video sequences collected by image acquisition equipment, to obtain an understanding of gesture control behavior, and to respond accordingly. [0003] Hand shape tracking based on computer vision is a key technology in gesture human-computer interaction. Many scholars at home and abroad have achieved certain results in this field. The existing tracking methods can be roughly divided into: (1) based on classifiers and Fixed hand shape detection and tracking method based on particle filter; (2) Motion deformable hand s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 徐向民裘索王恩翔
Owner SOUTH CHINA UNIV OF TECH
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