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Blending image transmission method in recognition wireless multimedia sensor network

A technology of multimedia sensing and image fusion, applied in transmission system, network topology, wireless communication, etc., can solve the problem of large data redundancy and achieve the effect of improving the utilization rate of image information

Active Publication Date: 2017-07-18
SHENZHEN RES INST OF WUHAN UNIVERISTY
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Problems solved by technology

In practical applications, many cameras monitor the same scene at the same location, and the collected data is redundant, and these cameras are generally powered by fixed batteries, which require efficient use of limited resources in the network

Method used

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  • Blending image transmission method in recognition wireless multimedia sensor network
  • Blending image transmission method in recognition wireless multimedia sensor network
  • Blending image transmission method in recognition wireless multimedia sensor network

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Embodiment Construction

[0040] In order to fully understand the technical content of the present invention, the technical solution of the present invention will be further introduced and illustrated below in conjunction with specific embodiments.

[0041] Such as Figure 1 to Figure 3 As shown, a transmission method of a fusion image in a cognitive wireless multimedia sensor network comprises the following steps:

[0042]Step S1, arranging two or more camera nodes in the cognitive wireless multimedia sensor network to collect multiple source image information with different focus levels in the same monitoring scene;

[0043] Step S2, at the fusion node with sufficient bandwidth resources and energy, use the method based on the quadtree structure and weighted area gradient energy to fuse the information of multiple source images with different focusing degrees in step S1 to obtain a fusion image, and the clarity of the fusion image is Both the degree and the amount of information are higher than any ...

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Abstract

The invention discloses a blending image transmission method in a recognition wireless multimedia sensor network. According to the method, multi-focus image collection is performed at a collection node; after a fusion node having a dynamic frequency spectrum management function adopts a quadtree structure and weighing region gradient energy based multi-focus fusion method for obtaining a fusion image, the fusion image is subjected to Fountain Code coding so as to generate data packets continuously; and the data packets are transmitted to a target node in a multi-hop self-organizing way through selecting an appropriate link in the recognition wireless multimedia sensor network. By adopting the above method, transmission of image data in the recognition wireless multimedia sensor network is realized, network data transmission volume and transmission energy consumption are reduced; at the same time, a user can acquire images with richer information content and higher definition.

Description

technical field [0001] The invention relates to the fields of wireless communication and image processing, in particular to a method for transmitting fusion images in a cognitive wireless multimedia sensor network. Background technique [0002] In recent years, with the increasing demand for wireless communication services and the rapid development of mobile Internet networks, wireless spectrum resources are becoming more and more scarce, and at the same time there are more and more devices using wireless communication, especially wireless sensor networks (Wireless Sensor Networks). With the rapid development of Sensor Network (WSN), many sensor nodes need to transmit their perceived environmental information to remote destination nodes through wireless communication, so a large amount of communication spectrum resources are required. The traditional fixed spectrum allocation method greatly limits the improvement of spectrum utilization, which will seriously restrict the pro...

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Application Information

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IPC IPC(8): H04N7/18H04L29/06H04W84/18
CPCH04L65/60H04N7/18H04W84/18H04L65/70Y02D30/70
Inventor 易本顺谢秋莹黄太奇
Owner SHENZHEN RES INST OF WUHAN UNIVERISTY
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