1.8 Integrated Image Tracking Machine

Single board card embedded architecture, integrate teacher tracking, students positioning, writing positioning, broadcasting switch, the system releases intellectual analysis on the various scenes of teacher area, student area and writing area, etc., and control the camera equipment to make video in fully automatic intelligent personification, the teacher and students don’t need to wear any tracking devices, there are no manual interference during the whole process of recording.

1) Video input port: SDI*4.

2) Video output port: DP*1\HDMI*1

3) Cloud platform control port: RS-232*4 reuse cloud platform control port (PTZ), can set up the cloud platform control code.

4) Communication port: console*1

5) Network port: Gigabit network interface

6) USB: port*4

7) Audio port: LINEIN*1

1.9 Image Tracking System

1) Teacher Image Behavior Analysis

When the system detects the teacher moving much in the classroom, priorly adopts dynamic camera mode with mid-shot and full view; when the teacher sits or stays in the classroom, priorly adopts static mode, with mid-shot and close shot. In the situation of multimedia classroom, interactive teaching machine is necessary, so before adopting the image recognition technology to track the teacher’s behavior, we must consider the interference of these image sources, to avoid mis-recognition, the simulation of real teaching scene was fully carried out, after various simulation test on tracking scenes, in the software setting, shielding area is allowed in the setting, to avoid the interference of animations, shadows and fluttering curtain on the tracking effect.

2) Students Image Behavior Analysis

In traditional tracking, it is not allowed that someone passes the corridor of the classroom, but in actual situation of class, a passing class teacher will surely affect the normal tracking on students, thus rubbish shots will appear. Considering actual teaching scene, it is allowed to manually set the image recognition mask area during software debugging, thus set the effective tracking area according to the environment on site and avoid rubbish spots.

3) Advanced Comprehensive Anti-shake Technology

Having owned “wide scene image anti-shake technology”, while supporting innovative “narrow scene anti-shake technology”.