Video-streaming-based hand positioning method

A positioning method and video streaming technology, applied in the field of human-computer interaction, can solve problems such as not being close to natural behavior, and achieve the effect of improving the interaction experience, reducing misoperation, and determining the precise position of the human hand.

Inactive Publication Date: 2012-11-28
SOUTH CHINA UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] In the gesture human-computer interaction system, the process of starting, tracking, and recognition is usually designed, because when the tracking starts, it is often necessary to know the information of the tracked target. The common method is to use the detection of fixed hand shape, which is not close to human natural behavior

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Embodiment Construction

[0031] The present invention is based on the staff location method of video flow, and this method comprises the following steps:

[0032] (1) The camera collects an image sequence, and obtains the position and size information of the face in the collected image;

[0033] (2) According to the position and size information of the face, determine the waving detection area and calculate the size of the hand;

[0034] (3) Calculate whether waving occurs in the waving detection area, and if waving is detected, obtain the position center point of the changed pixel area;

[0035] (4) Taking the position center point of the changing pixel area as a reference point, and calculating the size of the human hand according to step (2), determining the human hand search area, and then locating the precise position of the human hand.

[0036] Wherein, the step (3) calculating the waving detection area includes the following steps:

[0037] A: Calculate the inter-frame difference image D(x,y,...

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Abstract

The invention discloses a video-streaming-based hand positioning method. The method comprises the following steps of: (1) acquiring a section of image sequence by using a camera, and acquiring position and size information of a human face in an acquired image; (2) according to the position and size information of the human face, determining a hand-waving detection area, and calculating the size of a hand; (3) calculating whether the hand waving is produced in the hand-waving detection area, and acquiring the central position point of a changed pixel area if the hand waving is detected; and (4) determining a hand search area by taking the central position point of the changed pixel area as a reference point according to the size of the hand which is calculated in step (2), and positioning the accurate position of the hand. By the video-streaming-based hand positioning method, a method for positioning hands can be simplified; and the video-streaming-based hand positioning method is relatively humanized.

Description

technical field [0001] The invention relates to the field of human-computer interaction, in particular to a video stream-based human hand positioning method. Background technique [0002] Gesture is a communication method widely used in people's daily life and has a strong expressive function. With the development of computer technology, gesture control has gradually been applied to home appliance control, interactive display, game control and other occasions due to its advantages of natural operation, intuitiveness and non-contact. [0003] 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. [0004] In the gesture human-computer interaction system, the process of starting, tracking, and recognition is usually designed, because when the tracking st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F3/01
Inventor 徐向民裘索王恩翔
Owner SOUTH CHINA UNIV OF TECH
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