Near-infrared imaging system

Methods of near-field, midfield and ensemble (global) imaging and real-time visualization have been developed for monitoring gas atomization of liquid metals.[327] The primary process sensors and monitors used include high-speed video and infrared imaging systems. The process monitors allowed continuous and detailed observations of the atomization process and enabled measurements of the key parameters necessary for adequate control and optimization of the process. The sensors provided the operators with real-time information on the temperature of nozzle tip, visual characteristics of atomization plume, and gas and metal flow rates. The images can be displayed in real time, offering the potential for more responsive process control. 

Fig. 3. Near-range remote sensors of the German maritime surveillance aircraft and their spatial coverage. Also shown are the SLAR as a far-range sensor, the central operating console (COC) and the forward-looking infrared imaging system (FLIR) for ship identification...

T.O. McBride, B.W. Pogue, S. Jiang, U.L. Osterberg, K.D. Paulsen, A parallel-detection frequency-domain near-infrared tomography system for hemoglobin imaging of the breast in vivo, Rev. Sci. Instrum. 72, 1817-1824 (2001)... 

A. M. Paid, P. Vacas-Jacques, E. Hamidi, H. Wang, R. W. Carruth, J. A. Gaidecki, and G. J. Teamey, Optical Coherence Tomography—Near Infrared Spectroscopy System and Catheter for Intravascular Imaging, Opt. Express, 21(25), 30849 (2013). 

FIGURE 13 Interrelation between design space, PAT, and process control in a manufacturing system based on quality-by-design. (Source R. C. Lyon, Process monitoring of pilot-scale pharmaceutical blends by near-infrared chemical imaging and spectroscopy, Eastern Analytical Symposium (EAS), Somerset, NJ, 2006.)... 

Typical OCT systems provide a axial resolution of around 10 pm, ultra-high resolution is of the order of 1 pm. OCT systems typically use near infrared light with penetration depths in soft tissue of the order of a few millimetres. The mode of contrast in OCT is based on boundaries between zone of differences in refractive index within a specimen specifically, layers of different types of tissue can show up prominently on OCT images. Since the mid-1990s OCT has been suggested to be promising for real-time optical biopsy [42, 43], State-of-the-art probe systems have dimensions of a few millimetres and can be readily used at endoscopy. 

Peirs, A., Scheerlinck, N., De Baerdemaeker, J. and Nicolai B. M. (2003) Starch index determination of apple fruit by means of a hyperspectral near infrared reflectance imaging system. J. Near Infrared Spectrosc. 11, 379-89. 

Lawrence, K. C., Windham, W. R., Park, B. and Buhr, R. J. (2003) A hyperspectral imaging system for identification of faecal and ingesta contamination on poutry carcasses. J. Near Infrared Spectrosc. 11,269-81. 

Full details of our-home-made spectromicroscope system have been described previously [21]. The set-up is shown in Figure 30.1a. A near-infrared femtosecond pulse train at 800 nm is illuminated on a line (one lateral axis, denoted as the X axis) on a specimen using a resonant scanning mirror oscillating at 7.9 kHz. Total multiphoton-induced fluorescence from the linear region was focused on the slit of an imaging polychromator. 

Portable spectral imaging systems for medical applications is a growing field. One example is the portable near infrared system for topographic imaging of the brains of... 

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