Research On Key Technologies Of Multisource Image Fusion

Image fusion refers to multiple images which acquired by image sensors with different mechanisms and wavelength range at the same scene into a new image by using specific algorithms,so that overcome the single sensor's limitations and differences such as geometry, spectral and spatial resolution,as well as improve the credibility of fusion image and reduce ambiguity,which is more suitable for human visual and computer inspection, classification, identification, comprehension processing, thereby expand the scope of space-time sensor as well as improve the accuracy and robustness.Image fusion is an important branch of multisensor data fusion and a new tech of computer visual field.This paper focuses on the background and presents situation of image fusion technique,analyses some basic problems further,and study on some key problems based on content combined with microbeam analysis field.the main job and research achievements that has acquired are as follows:1.Based on analysing the theory of Contourlet transform,combined with the application experience of Contourlet transform in image process field,this paper studies on Contourlet fusion method and procedure that adapts to electron probe image.and presents an improved region method based on wavelet-Contourlet transform.which can better show the information from multisource images.2.Combined with image sparse representation and the visual feature of human eyes,based on analysing the feature of Bandelet and the advantage of anisotropy.by optimizing the fusion rule and from the subjective and objective angle.this paper presents an idea that applies Bandelet transform to electron probe image fusion.in order to improve the fusion information further.3.According to some images with strong edge and multi-focal length image in electron probe, this paper proposes an enhanced image fusion that can get strong edge based on Directionlet transform,so that enrich the process demand of electron probe image with the same type but different focal length.4. Explore the fusion application from technique and praticability.On the one hand, this paper studied on 3-D reconstruction technique,based on aquisition of fusion image.combined with DEM mapping principle and OpenGL technological advantages, this paper proposed a three-dimensional reconstruction of the optimization algorithm based on gray-scale image fusion,constructed a three-dimensional images of micro-surface scenes based on Open-GL;On the other hand, this paper has finished the research of image fusion application and have carried out a more systematic study on the basis of ARM platform from the system's hardware and software framework design, USB-driven data acquisition to the image video data acquisition, data compression,...