Intelligent tracking system based on TOF 3D camera

Abstract

The invention discloses an intelligent tracking system based on a TOF 3D camera. The system comprises a positioning system, a processing system and a shooting system. The positioning system adopts a TOF-based 3D camera; and the processing system is a host server. According to the system, two schemes are made: one scheme is characterized by obtaining depth images through a 3D camera; after analyzing a selected tracking object, carrying out conversion on the coordinates of a target person and distance calculation; and then, carrying out shooting through a shooting camera; and the other scheme is characterized by obtaining the depth images through the 3D camera; after analyzing, marking ID for each person; and locking a target through the ID and storing the track. The information can be transmitted to the host server accurately in real time through a series of processing, so that tracking of the target can be realized, mobile track of the target can be obtained; and the system is not influenced by external factors through such a manner, and is full-automatic in tracking, high in precision and simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of recording and broadcasting tracking, in particular to an intelligent tracking system based on a TOF 3D camera. Background technique [0002] With the deepening of the new curriculum reform, teachers are increasingly pursuing visualization in classroom teaching, and students require cooperation in classroom learning. However, the realization of these requirements depends largely on modern information technology facilities, especially the visualization of classroom teaching. . The visualization of this kind of classroom teaching is generally realized through video recording, which promotes the development of automatic recording and broadcasting tracking system technology. [0003] At present, the recording and broadcasting tracking systems on the market basically have three control principles: ultrasonic tracking switching technology, infrared tracking technology and image recognition and analysis technolo...

AI Technical Summary

Problems solved by technology

The disadvantage of ultrasonic positioning mode is that when the teacher leaves the podium to interact with the students, the camera will lose the tracking target; when the students go to the podium to interact with the teacher, the tracking system cannot acquire two targets at the same time, resulting in tracking errors

The problem with the infrared tracking and positioning mode is that the light from the outside will cause the tracking and positioning system to fail, and other obstructions, such as water cups and chalk boxes placed on the podium, will also cause positioning errors

The disadvantage of the image recognition tracking method is that it is easily affected by the surrounding environment. For example, if a stool is placed on the podium, it may cause inaccurate tracking and make the tracking system misjudge; it is easy to be interfered by the light of the touch screen and projector, resulting in tracking Inaccurate; high requirements on light, easily affected by fluorescent tubes or sunlight, and its shadow is likely to cause misjudgment of multiple targets in tracking, resulting in inaccurate tracking; student tracking is especially complicated, and students' heights and behaviors are different. Image algorithms have no way to clearly distinguish these details, resulting in inaccurate tracking

Images