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Binocular-vision-based real-time extraction method and system for three-dimensional hand information

A binocular vision and three-dimensional information technology, applied in image data processing, 3D modeling, instruments, etc., can solve the problems of high false detection rate and not very effective, and achieve the effect of reliable reconstruction, reliable detection and tracking

Inactive Publication Date: 2015-08-05
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

Since the detailed information contained in the hands is not very rich, HAAR features and LBP features are not very effective for the detection of human hands, and the false detection rate is high.

Method used

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Embodiment Construction

[0043] Embodiments of the present invention will be described below in conjunction with exemplary embodiments. In the interest of clarity, not all features of an actual implementation are described in this specification. It should be understood that in the development of any such actual implementation, a number of implementation-specific decisions must be made to achieve the developer's specific goals, such as compliance with design system and business-related constraints that will depend on the implementation Varies depending on the process. In addition, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0044] While the invention is susceptible to various modifications and alternative forms, specific embodiments of the invention have been shown by way of example in the drawings and described in detail herei...

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Abstract

The invention relates to a binocular-vision-based real-time extraction method and system for three-dimensional hand information. The method comprises: obtaining image information collected by a left camera and a right camera of a binocular camera system in real time; detecting hands in the images collected by the left camera and the right camera in real time; detecting a hand at a first frame by using a histogram of oriented gradient (HOG) and a support vector machine (SVM) linear classifier and detecting hands at follow-up frames by using a target tracking algorithm; extracting information of centers of palms and fingertips of the detected hands in real time and using the information as feature points of the hands; and according to the binocular-vision principle, calculating three-dimension coordinates of the feature points based on the extracted feature points so as to obtain real-time three-dimensional hand information. In addition, the system is composed of a binocular camera system and an information processing device; and the information processing device includes a hand detection module, a feature point extraction module, and a three-dimensional reconstruction module. According to the invention, real-time reliable detection and tracking of hands under a complex background can be realized; and thus reliable reconstruction of the three-dimensional hand information can be realized based on the detection and tracking.

Description

technical field [0001] The present invention relates to a method and system for real-time extraction of three-dimensional information of human hands, in particular to a method and system for real-time extraction of three-dimensional information of human hands based on binocular vision, and to technical fields such as digital image processing and pattern recognition, spatial three-dimensional information acquisition, and human-computer interaction . Background technique [0002] In recent years, with the rapid development of computer vision technology, vision-based gesture interaction has been more and more researched and applied in the field of human-computer interaction because of its unique convenience. At the same time, with the rapid development of 3D technology and the continuous improvement of people's requirements for authenticity and immersion in human-computer interaction, 3D interactive technology has been researched and favored by more and more people, and related...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06K9/00G06K9/46G06K9/62
Inventor 张飞龙段侪杰郭卉任镜洁
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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