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Teacher movement tracing method based on movement detection combining multi-channel fusion

A technology of motion detection and motion tracking, which is applied in the field of motion tracking and can solve unexplained problems

Inactive Publication Date: 2009-03-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method reduces the amount of calculation through airspace classification, improves real-time performance, and has certain advantages. However, it does not explain or consider the problem of target occlusion, tracking target recognition, and large changes in the external environment.

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  • Teacher movement tracing method based on movement detection combining multi-channel fusion
  • Teacher movement tracing method based on movement detection combining multi-channel fusion
  • Teacher movement tracing method based on movement detection combining multi-channel fusion

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Embodiment Construction

[0073] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0074] This embodiment is used to automatically track the lecturer in real time in the intelligent classroom of distance education, and collect the real-time image of the lecturer.

[0075] Such as figure 1 As shown, this embodiment includes the following steps:

[0076] In step 1, the audio signal generated by the microphone used by the teacher in the smart classroom is collected through the sound card, and the sampling rate of the signal in this embodiment is 8kHz. High-pass filtering is performed on the input audio signal to weaken the noise-based signal energy i...

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Abstract

The invention discloses a method for tracking teacher movements, which is based on the movement detection and combined with multi-channel fusion. The method comprises the following steps: step 1: detecting voice signals; step 2: detecting original mouse device signals; step 3: identifying the video picture movement face detection; step 4: fusing the detection results of the three channels from step 1 to step 3, identifying the position of the teacher, controlling the holder to turn to the moving teacher and zooming in and out; and step 5: circulating from step 1 to step 4 and tracking the teacher in a real-time manner. The method can be applied to not only a remote education intelligent classroom, but also a video conference, a video telephone and a network meeting, the method can capture the pictures of the on-site major person accurately in a real-time manner to transmit to participants on the remote end, so that the participants on the remote end can acquire a remote interactive experience with a higher presence.

Description

technical field [0001] The present invention relates to a motion tracking method in the technical field of telecommunications, in particular to a teacher motion tracking method based on motion detection combined with multi-channel fusion. Background technique [0002] With the maturity of Internet technology and the vigorous development of mobile 3G network, distance education E-learning, as a new education model, will take an increasing proportion in education. In E-learning, an important concept is "smart classroom". In a smart classroom, teachers can easily use mouse, keyboard, fixed microphone, wireless microphone, laser pointer, podium display, touch screen, and large-screen wall projection High-tech products such as , plasma TV and electronic whiteboard teach and interact with on-site students and remote students at the same time in the same natural way as in traditional classrooms. In order to provide distance students with a more immersive distance teaching experien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225G06T7/20G09B5/00G10L11/02
Inventor 郑红罗全锋陈刚申瑞民吴元
Owner SHANGHAI JIAO TONG UNIV
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