Real-time three-dimensional gesture tracking method based on geometric method

Abstract

The invention discloses a real-time three-dimensional gesture tracking method based on a geometric method. By using a geometric method, a hand position, a palm center and fingertips are captured in real time through a depth sensor to carry out gesture tracking. The depth information is repaired and denoised by using the pixel filter, so that the accuracy of determining the position of the subsequent fingertip is improved. Through an object recognition method, a square frame with the minimum depth is selected as the position of a hand region of interest, the hand region of interest is predicted and corrected through nuclear correlation filtering, an arm region is removed through principal component analysis, and the accuracy of the whole system is improved. The expanded inscribed circle is used for removing the part belonging to the inscribed circle internal region, so that the search range determined by the fingertip point is reduced, and the efficiency of the whole system is improved. The geodesic distance is only applied to the outer area of the inscribed circle, the position of a fingertip point is more accurately and stably determined, and the real-time performance of the system is improved. The finger areas are marked differently, so that the interference of the subsequent fingertips on the preorder fingertips is eliminated.

Description

technical field [0001] The invention belongs to the field of human-computer interaction based on hand motion information, in particular to a real-time three-dimensional gesture tracking method based on a geometric method. Background technique [0002] Human-computer interaction is the study of communication and communication between humans and computers that understand each other through input and output signals, and completes functions such as information management, service, and processing for people to the greatest extent. The emergence of natural user interaction interface makes people get rid of the dependence on traditional external devices in the interaction process, as well as the restrictions brought by traditional external devices to the interaction process, making the process of human-computer interaction smoother and more natural, and the application scenarios of human-computer interaction more convenient. Wide and varied. Since the hand plays an important role ...

AI Technical Summary

Problems solved by technology

In the development of human-computer interaction applications based on hand motion, it is required to accurately reflect the real motion of the hand in free space, thus posing new challenges to real-time processing algorithms

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