A hyperspectral imaging system (HSIS) is a combination of an imaging device and a spectrometer. The result is a 2D image combined with the third dimension containing the spectral composition of each pixel of the image. Spectrometers normally implemented in hyperspectral imaging systems are made by integrating a dispersive means (a prism or a grating) in an optical system, with the drawback of h...

Abstract In order to overcome the shortcomings of solar simulator in aspect performance testing for optical imaging system, a lighting environment simulation system is designed. We select dysprosium lamp, xenon lamp and multiple LEDs as light sources simulator, change sun zenith angle simulated by using symmetrical method source. Also, intensity controlled adjusting output current power supply....

The imaging properties of a scanning optical system that incorporates an axicon are presented. Beamshape characteristics including the axial distribution of the J(0) beam and its control and aberration effects arising from off-axis illumination are experimentally studied. These parameters are relevant when the axicon is used in an imaging system operating in the beam-scanning mode. The J(0) pat...

We discuss the general properties of optical imaging in three-dimensional object domains from an information-theoretic standpoint, expressing system performance in terms of imaging mutual information (IMI). We use IMI to characterize volume holographic imaging, a new optical imaging method with depth discrimination capability. The performance of this holographic method in imaging a simple discr...

The compact size, mechanical flexibility, and growing functionality of optical fiber and fiber optic devices are enabling several new modalities for imaging the mammalian nervous system in vivo. Fluorescence microendoscopy is a minimally invasive fiber modality that provides cellular resolution in deep brain areas. Diffuse optical tomography is a non-invasive modality that uses assemblies of fi...

Introduction : Multi-modality imaging is becoming a trend in developing new generation in vivo imaging techniques for diagnosis [1]. Recently, our group has developed a high temporal resolution, dynamic MRI-DOT multi-modality imaging system [2]. Dynamic contrast enhanced MRI (DCEMRI) has been proven to be the most sensitive modality in detecting breast lesions [3]. However, it has low specifici...

We prototyped a spherical coded triplet imaging system and verified its extended depthof-field imaging capabilities. c © 2009 Optical Society of America OCIS codes: (060.2320) Fiber optics amplifiers and oscillators; (060.4510) Optical communications

background: a pressure ulcer is a complication related to the need for the care and treatment of primarily disabled and elderly people. with the decrease of the blood flow caused by the pressure loaded, ulcers are formed and the tissue will be wasted with the passage of time. objective the aim of this study was to construct blood flow monitoring system on the heel tissue which was under externa...

Three-dimensional photoacoustic microscopy (PAM) has gained considerable attention within the biomedical imaging community during the past decade. Detecting laser-induced photoacoustic waves by optical sensing techniques facilitates the idea of all-optical PAM (AOPAM), which is of particular interest as it provides unique advantages for achieving high spatial resolution using miniaturized embod...