Stereoscopic vision optical tracking system aiming at multipoint targets

A stereo vision and optical tracking technology, applied in image data processing, instruments, processor architecture/configuration, etc., can solve the problems of large system delay, real-time impact of application system, low data refresh rate, etc. Real-time and flexibility, the effect of tracking many targets
CN101694716AInactive Publication Date: 2010-04-14BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2010-04-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a stereoscopic vision optical tracking system aiming at multipoint targets, which belongs to the field of the mechanical vision and positioning tracking technique. The stereoscopic vision optical tracking system utilizes a mode based on hardware realization, utilizes a binocular camera to acquire targets and original images of the background, adopts a parallel pipeline to identify and mark the targets rapidly and utilizes a dual-core digital signal processor to perform parallel operation, and then space positioning and tracking of the target is completed. The parallel pipeline processing and the dual-core serial computing are combined, and then hardware resources are allocated reasonably according to different algorithm characteristics. The stereoscopic vision optical tracking system is free of constraint of a PC or working station and breaks through the bottleneck of software computing resources of the PC or working station. In addition, the system can perform real-time positioning and tracking on multipoint targets in space in different illumination environments with different target illumination strengths, and can real-time track over 100 point targets in space in a non-drop frame form. Tracking precision of the system can reach 0.5mm RMS.
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Description

technical field

[0001] The invention relates to an optical tracking system, in particular to a hardware-based stereo vision optical tracking system, which belongs to the technical field of machine vision and positioning tracking. Background technique

[0002] The recognition and tracking of multi-point targets plays an important role in many application fields, such as image-guided surgery, motion capture, augmented reality, entertainment, etc. The optical tracking device is used to identify and track the marking points attached to the surface of the rigid body of the target, and by obtaining the spatial coordinates of multiple marking points and the distance between each marking point, the position and orientation of the rigid body target can be determined.

[0003] In recent years, researchers have done a lot of research on the application of optical tracking systems. In "The role of navigation in knee surgery and evaluation of three-dimensional knee kinematics" Operative...

Claims

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