In multispectral imaging system, one of the most important tasks is to accurately reconstruct the spectral reflectance from system responses. We propose such a new method by combing three most frequently used techniques, i.e., wiener estimation, pseudo-inverse, and finite-dimensional modeling. The weightings of these techniques are calculated by minimizing the combined standard deviation of bot...

OF THE DISSERTATION The Application of a Novel Multispectral Imaging System to the in vivo Study of Fluorescent Compounds in Selected Marine Organisms

Automatic brain tumor segmentation from multispectral magnetic resonance imaging (MRI) data is an important but a challenging task because of the high diversity in the appearance of tumor tissues among different patients and in many cases similarity with the normal tissues. In this paper, we propose a fully automatic technique for brain tumor segmentation from multispectral human brain MRIs. We...

Multispectral imaging (MSI) data acquired at different view angles provide an analyst with a unique view into shallow water. Observations from DigitalGlobe’s WorldView-2 (WV-2) sensor, acquired in 39 images in one orbital pass on 30 July 2011, are being analyzed to determine bathymetry along the windward side of the Oahu coastline. Satellite azimuth and elevation range from 18.8 to 185.8 degree...

Firmness is an important parameter in determining the maturity and quality grade of apple fruit. The objective of this research was to mprove the multispectral imaging system used in our previous studies and refine scattering analysis methods for more effectively measuring pple fruit firmness. An improved multispectral imaging system equipped with a light intensity controller was used to measur...

Purpose: Multispectral imaging (MSI) approaches such as SEMAC, MAVRIC, MAVRIC-SL and others have shown promise for artifact-reduced imaging near metal [1-3]. These methods all combine multiple 3D images, each from a separately excited region (frequency bands in MAVRIC, distorted slices in SEMAC). The longer scan times of these approaches can be mitigated using reduced-excitation-region approach...