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Video abstraction extraction and transmission method based on cooperative wireless communication

A video summary and wireless communication technology, applied in the field of video summary extraction and transmission based on collaborative wireless communication, can solve the problems of low extraction efficiency, complex implementation, unsuitable application of cooperative wireless communication video transmission, etc., to improve transmission speed and quality Effect

Inactive Publication Date: 2014-12-03
QINGDAO UNIV
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Problems solved by technology

[0005] At present, there are many methods for extracting video summaries, but the existing methods are complicated to implement and have low extraction efficiency, so they are not suitable for video transmission in collaborative wireless communication
At present, there is no technology combined with cooperative wireless communication system to extract video summaries

Method used

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  • Video abstraction extraction and transmission method based on cooperative wireless communication
  • Video abstraction extraction and transmission method based on cooperative wireless communication
  • Video abstraction extraction and transmission method based on cooperative wireless communication

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] See figure 1 , which is a flow chart of an embodiment of the method for extracting video summaries based on cooperative wireless communication in the present invention.

[0037] Such as figure 1 , the embodiment extracts the process of the video abstract as follows:

[0038] Step 101: Decode the original video stream to obtain an image sequence.

[0039] The original video stream mentioned here may be a video stream captured in real time and compressed and encoded, or a historical video stream that has been stored and compressed and encoded. First, the original video stream needs to be decoded and decomposed into frame-by-frame images to form an image sequence. The specific decoding process can be adopted in the prior art, and will not b...

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Abstract

The invention discloses a video abstraction extraction and transmission method based on cooperative wireless communication. The video abstraction extraction method comprises the steps that original video streams are decoded to obtain an image sequence; the image sequence is divided into image frames of a type I, a type B and a type P; I-frame images are transformed into gray level images, and an I-frame gray level image sequence is formed by all the gray level images; a channel feedback factor and the total contrast scale value of the gray level image frames in the I-frame gray level image sequence are obtained, video abstraction image frames are extracted according to the channel feedback factor and the total contrast scale value, and the video attraction is formed by all the video extraction image frames. Video abstraction extraction is carried out the images according to the contrast scale value and the channel feedback factor, the image frames which can reflect video information to the largest degree and are representative can be extracted from a large number of video frames as few as possible to form the video extraction, and transmission speed and quality of cooperative wireless communication video can be improved.

Description

technical field [0001] The present invention relates to video data processing technology, in particular, to the extraction and transmission of video summaries, and more specifically, to a method for extraction and transmission of video summaries based on collaborative wireless communication. Background technique [0002] With the development of broadband communication technology, video data has occupied most of the network traffic, especially the popularization of Safe City and 4G communication, which makes it possible for anyone to generate, disseminate, share, and watch video data. However, because the browsing of video data takes a lot of time, video summarization technology emerges as the times require. [0003] Video summary, also known as video enrichment, is a simple summary of the video content. In an automatic or semi-automatic manner, the moving target is first extracted through the analysis of the moving target, and then the trajectory of each target is analyzed, ...

Claims

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Application Information

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IPC IPC(8): H04N21/8549H04N19/154
Inventor 卜庆凯江冬梅贺英王正彦
Owner QINGDAO UNIV
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