Enhancing the Informativeness of Multispectral Images by means of Multimodal Image Fusion
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2018, Vol 0, Issue 73
Abstract
The research is devoted to the problem of combining graphic information from sensors of various physical nature in multispectral monitoring systems using methods of multimodal image fusion. Each of the sensors of the multispectral monitoring system allows to obtain digital images of the observed scene in different ranges of electromagnetic radiation. In this paper, we consider a two-spectral monitoring system, the frst sensor of which operates in the visible range, and the second in the infrared. The main problem with multimodal image fusion is that each partial sensor of the multispectral monitoring system represents specifc characteristics of the environment (brightness, thermal or radar contrasts of objects, etc). Another, no less important problem is the different spatial resolution of sensors of different physical nature and the inconsistency of their felds of view. Therefore, the problem of effective multimodal image fusion is not trivial. As a criterion for the effectiveness of combining graphical information in a single fused image, which should contain the maximum available useful information from various sensors, the informativeness of this image is chosen. A quantitative assessment of image informativeness is proposed to be performed using an improved method based on multicriteria analysis of image parameters. Multimodal image fusion is performed using the proposed method based on the discrete wavelet transform with the formation of low-frequency wavelet coefcients of the resulting wavelet spectrum by analyzing the regression communication model between the input images from different sensors. Confrmed experimentally that the proposed method of image fusion makes it possible to synthesize more informative multispectral images than known algorithms. The application of proposed method of image fusion for monitoring objects in difcult observation conditions (smoke, fog, low illumination) allows to increase the efciency of the multispectral monitoring system and signifcantly reduce the amount of redundant information coming to the operator of the system.
Authors and Affiliations
A. Hryvachevskyi, I. Prudyus
Keywords
Related Articles
- EP ID EP308243
- DOI 10.20535/RADAP.2018.73.40-49
- Views 70
- Downloads 0
Evaluation of the economic efficiency of maintenance and repair of the subsystems of regional radioelectronic complex system
Introduction. In the paper the problem of assessing the economic efficiency of the strategies of maintenance the regional radioelectronic complex system, on the example, of base stations cellular network which are placed...
Optimization of Exactness of Direct Digital Correlation-Interferometer Direction-finder with Double Сorrelation Processing
Introduction. In this paper considered unsolved part of general issue of research of direct digital methods of correlation-interferometer radio direction-finding. The purpose of the article is optimization of exactness o...
Fourier transformant area deconvolution condition. Construction of the image degradation matrix
Symbolic method of forming image degradation matrix at Adamar conversion transformants area is proposed. Algorythm of forming coefficients at distortion system impulse characteristics samples for any range of samples and...
Determination of homogeneity zone of controlled quasistatic electric field in the area with the ring multiply boundary
The analysis and calculation of zone homogeneity of controlled (rotated) quasi-static electric field in the interior of the open area with circular multiply connected boundary and of equal length, depending on connectivi...
About the accuracy of assessment of stability of linear periodically time-variable circuits by the frequency symbolic method
Introduction. In the paper considers the question the research of accuracy (reliability) assessment of the stability of linear periodically time-variable circuits by the frequency symbolic method and determining the ways...