Method and system for detecting fingertip space position based on binocular stereoscopic vision

Abstract

The invention provides a method and system for detecting the fingertip space position based on binocular stereoscopic vision. After denoising is carried out on hand images acquired through two cameras respectively with a frame as a unit in a binarization processing mode, image connected domain calculation, boundary extraction, fingertip point search, fingertip match and space coordinates reset treatment are carried out on the hand images, and detecting parameters and illumination intensity of an infrared lighting source are dynamically adjusted before the next frame of each hand image is acquired. Due to the fact that the infrared binocular vision system is adopted, and the illumination intensity and the fingertip detecting parameters are dynamically adjusted according to the distance between the hands of a user and the cameras, the detecting rate of the fingertip is effectively improved, and the usable range of the device is wider.

Description

technical field [0001] The invention relates to the field of human-computer interaction, in particular to a method and system for binocular stereo vision detection of the spatial position of fingertips. Background technique [0002] Gesture tracking and recognition technology based on binocular stereo vision is often used to build human-computer interaction systems. By using two cameras to capture the user's gestures and restore the three-dimensional coordinates of each fingertip, it provides effective data for subsequent gesture tracking and recognition. In the binocular stereo vision system, when the distance between the user's hand and the camera changes, the gesture image captured by the camera will also change accordingly. Taking some adjustment measures will reduce the detection rate or even make it impossible to detect. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] In view of the above deficiencies ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a method and system for binocular stereo vision detection of the spatial position of fingertips, aiming to solve the problem of low fingertip detection rate in the existing mid-infrared binocular vision system. question

Images