نتایج جستجو برای: multispectral imaging

تعداد نتایج: 462628  

Journal: :Optics letters 2000
A R Rouse A F Gmitro

The concept of a multispectral confocal microscope for in vivo imaging is introduced. To demonstrate the concept we modified a slit-scan fluorescence confocal microendoscope incorporating a fiber-optic catheter for in vivo imaging to record multispectral images. The system was designed to examine cellular structures during optical biopsy and to exploit the diagnostic information contained withi...

2017
Marcel Dierl Timo Eckhard Bernhard Frei Maximilian Klammer Sascha Eichstädt Clemens Elster

In the printing industry, multispectral line scan cameras are being applied with increasing frequency in print inspection. This field of application requires highly accurate camera systems. In this article, we describe a novel approach to determining the accuracy of multispectral measurements recorded by line scan cameras. The approach is based on Bayesian statistics and paves the way for inlin...

Journal: :International Journal of Biomedical Imaging 2006
Weimin Han Wenxiang Cong Ge Wang

Multispectral bioluminescence tomography (BLT) attracts increasingly more attention in the area of optical molecular imaging. In this paper, we analyze the properties of the solutions to the regularized and discretized multispectral BLT problems. First, we show the solution existence, uniqueness, and its continuous dependence on the data. Then, we introduce stable numerical schemes and derive e...

2009
Davood AKBARI

Hyperspectral images have the high spectral resolution rather than to multispectral images. By development of remote sensing technology, the new sensors with hyperspectral capabilities in RS science will be replaced to multispectral imaging. A big advantage of hyperspectral images comparison to that of multispectral images is a continuous spectrum for each image cell that can be derived from im...

2008
B. Park M. Kise K. C. Lawrence W. R. Windham S. C. Yoon

The overall goal of this paper is to develop a cost effective portable multispectral imaging instrument that inspectors or plant personnel can use for quality control. Food safety and quality in food industry, especially small plant is ongoing problem. Identification and separation of contaminated food is very important to protect the consumer from a potential source of food poisoning. The curr...

2016
Jason Deglint Farnoud Kazemzadeh Daniel S. Cho David A. Clausi Alexander Wong

The simultaneous capture of imaging data at multiple wavelengths across the electromagnetic spectrum is highly challenging, requiring complex and costly multispectral image devices. In this study, we investigate the feasibility of simultaneous multispectral imaging using conventional image sensors with color filter arrays via a novel comprehensive framework for numerical demultiplexing of the c...

2008
P. M. Dare

Small format aerial imaging sensors are important data acquisition tools, but their positive attributes are too often overlooked. Nowadays, as the number of users of spatial data are dramatically increasing, the use of small format sensors is becoming more common. It is therefore important to rigorously assess small format sensors to ensure they are providing quality spatial data. Mostly small ...

2018
Daniel Sousa Christopher Small

Planned hyperspectral satellite missions and the decreased revisit time of multispectral imaging offer the potential for data fusion to leverage both the spectral resolution of hyperspectral sensors and the temporal resolution of multispectral constellations. Hyperspectral imagery can also be used to better understand fundamental properties of multispectral data. In this analysis, we use five f...

2008
Hong Chang

This dissertation addresses the advantage of using multispectral narrow-band images over conventional broad-band images for improved face recognition under varying illumination. To verify the effectiveness of multispectral images for improving face recognition performance, three sequential procedures are taken into action: multispectral face image acquisition, image fusion for multispectral and...

2014
Changhong Liu Wei Liu Xuzhong Lu Fei Ma Wei Chen Jianbo Yang Lei Zheng

Multispectral imaging with 19 wavelengths in the range of 405-970 nm has been evaluated for nondestructive determination of firmness, total soluble solids (TSS) content and ripeness stage in strawberry fruit. Several analysis approaches, including partial least squares (PLS), support vector machine (SVM) and back propagation neural network (BPNN), were applied to develop theoretical models for ...

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