An optical motion capture method and an optical motion capture camera

Abstract

The invention discloses an optical motion capture method and an optical motion capture camera. The optical motion capture method is used for capturing the motion of a target object outdoors, and comprises the following steps: receiving an information light beam; wherein the information light beam comprises ambient light and reflected light formed by reflecting the mark point after the ambient light and the mark point are irradiated by an infrared light source; and the infrared band of the infrared light source is 940 nm; filtering ambient light in the information light beam; and obtaining picture information according to the reflected light, and further obtaining action information of the target object. According to the technical scheme provided by the invention, the target object can be quickly captured outdoors.

Description

technical field [0001] The invention belongs to the technical field of motion capture, and in particular relates to an optical motion capture method and an optical motion capture camera. Background technique [0002] At present, when performing motion capture, the commonly used passive optical capture system is sensitive to sunlight interference and can only be used indoors, which greatly limits the application scenarios of motion capture. [0003] Some active motion capture systems currently on the market use strong light-emitting LEDs as optical identification objects, which can perform outdoor motion capture to a certain extent. However, the LED recognition principle of timing coding essentially relies on the camera to collect images of different markers (Marker) at different times for ID identification, which is equivalent to sequentially exposing each Marker in the same action frame, which destroys the action. The synchronization of Markers detection in capture leads t...

AI Technical Summary

Problems solved by technology

However, the LED recognition principle of timing coding essentially relies on the camera to collect images of different markers (Marker) at different times for ID identification, which is equivalent to sequentially exposing each Marker in the same action frame, which destroys the action. The synchronization of Markers detection in capture leads to motion deformation, which is not conducive to the capture of fast actions

Moreover, since a large part of the camera frame rate is used to identify different Marker points in a single frame, the effective action frame sampling rate is low, which is not conducive to fast motion capture and data analysis

Images