Wireless sensor network image fusion method based on multi-focus fusion and image splicing
A wireless sensor network and image fusion technology, which is applied in the field of wireless sensor network image fusion based on multi-focus fusion and image stitching, can solve the problem of single image fusion research
Inactive Publication Date: 2014-09-10
SOUTH CHINA UNIV OF TECH
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[0007] Aiming at the single problem of existing image sensor network image fusion research, the present invention fully combines the two fusion technologies to obtain different image information on the basis of improving the respective fusion algorithms of multi-focus image fusion technology and image splicing fusion technology. It provides an effective and feasible image fusion method for wireless sensor networks based on multi-focus fusion and image stitching
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[0050] The present invention will be further described below in conjunction with the accompanying drawings and examples, but the protection scope of the present invention is not limited to the scope described in the embodiments.
[0051] The present invention can adopt multi-acquisition nodes to carry out image acquisition (such as figure 1 ), and a single acquisition node can also be used for image acquisition. In this embodiment, a single acquisition node is used for image acquisition. The camera of the acquisition node can be rotated to adjust the angle, and the rotation can be used to collect images in various directions in a 360-degree loop, and then perform fusion operations on the images . The function realized by the embodiment is to fuse a 360-degree panorama image with multi-focus information, and connect to a wireless network for fusion image transmission, which is applied to a wireless sensor network topology such as figure 2 shown.
[0052] The embodiment desig...
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The invention discloses a wireless sensor network image fusion method based on multi-focus fusion and image splicing. According to the wireless sensor network image fusion method, multi-focus image acquisition is firstly carried out on an image acquisition node, a multi-focus image fusion algorithm based on direction area energy is called to perform multi-focus image fusion, a focused image is selected by an adaptive gradient threshold judging method and is transmitted to a splicing processing node, multi-focus images obtained from different directions in different acquisition nodes or the same acquisition node are spliced by the splicing processing node, and a multi-azimuth and multi-focus fusion image is obtained and is then transmitted. The invention combines the multi-focus image fusion technology with the image splicing technology, effectively fuses a large number of image data to be transmitted, so the data transmission quantity and transmission energy consumption of the sensor network are reduced, meanwhile, users are ensured to obtain more direct and more abundant information, the adaptive gradient threshold judging method is adopted to select splicing materials, and the adverse effect of focusing blurred images on fusion result is reduced.
Description
technical field [0001] The invention relates to a data fusion technology of a wireless sensor network, in particular to a wireless sensor network image fusion method based on multi-focus fusion and image splicing. Background technique [0002] Data fusion technology (data aggregation or data fusion) in wireless sensor networks is the process of processing data or information collected by sensors to combine data that is more in line with user needs and more effective. Data fusion requires efficient management of nodes to save network energy consumption and extend network life; at the same time, redundant data is processed to reduce network data transmission volume, avoid data transmission conflicts, and reduce the impact of environmental noise and inter-sensor interference on data. Improve collection efficiency so that users can obtain the most authentic, direct and abundant information. [0003] Image fusion refers to combining the information of two or more source images, ...
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IPC IPC(8): G06T5/50G06T7/00
Inventor 胡斌杰江卓斌
Owner SOUTH CHINA UNIV OF TECH