QUALITY ASSESSMENT CRITERIA FOR IMAGE FUSION IN MULTISPECTRAL OPTICAL-ELECTRONIC SYSTEMS
Annotation
The problems related to fusion of digital images in multispectral optical-electronic systems are considered. The presented analysis of the procedure of fusion image creation is used as a base for development of criteria of the resulting image quality evaluation with the account for spatial distortion and brightness change. To evaluate the quality of spatial transformation at image fusion, it is proposed to use such criteria as the dispersion of brightness levels difference for original image and image after spatial transformation, and the correlation coefficient for initial (without spatial distortion) and the transformed images. To assess the quality of brightness transformation in fusion image, the cross-entropy value is calculated to reduce the influence of the noise component of the image on the information quantity estimate. Another criterion is a characteristic of symmetry distribution of the fusion image Fourier spectrum – excess of Fourier spectrum – which allows to define the contrast of the image by the frequency components.
Keywords
Постоянный URL
Articles in current issue
- LARGE OPTICAL SPACE-BASED TELESCOPES
- ENSURING DYNAMIC SYSTEM STABILITY UNDER CONSTRAINED PERTURBATIONS IMPACT
- STABILITY OF DESIRED STATIONARY REGIME OF CLOSED-LOOP SYSTEMS WITH PERIODICALLY CHANGING STRUCTURE
- SPACE VECTOR MODULATION IN MULTILEVEL INVERTERS OF THE SERVO DRIVES OF THE TRAJECTORY MEASUREMENTS TELESCOPES
- METHOD FOR PSEUDO-NOISE SIGNAL GENERATION BASED ON M-SEQUENCES WITH NON-MULTIPLE RECURRING PERIODS
- ANALYSIS OF COMPLEX FILTERS WITH THE USE OF TRANSITION CHARACTERISTICS
- POTENTIAL ACCURACY OF SLANT RANGE MEASUREMENT WITH THE INERTIAL INPUT CIRCUIT OF RECEIVING SYSTEM
- AFOCAL COMPENSATORS OF OPTICAL SYSTEMS ABERRATIONS
- UNCERTAINTY OF NON-STATIONARY HEAT FLUX RECOVERY BY PARAMETRIC IDENTIFICATION OF DIFFERENTIAL-DIFFERENCE MODEL OF HEAT TRANSMISSION
- PRODUCTION TESTING OF REFRACTOMETRIC DEVICE FOR CONTROL OVER LIQUID-PHASE MEDIA
- STUDY OF ACOUSTO-ELASTIC PROPERTIES OF THIN WIRES