Spectrometers have a wide range of applications ranging from optical to non-optical spectroscopy. The need for compact, portable, and user-friendly spectrometers has been focus attention small laboratories the industrial scale. Here, Czerny Turner configuration-based spectrometer simulation design was carried out using ZEMAX OpticStudio. A compact low-cost in visible developed by diffraction gr...

OBJECTIVE This work aims to explore the effects of adaptive statistical iterative reconstruction (ASiR) and model-based iterative reconstruction (MBIR) algorithms in reducing computed tomography (CT) radiation dosages in abdominal imaging. METHODS CT scans on a standard male phantom were performed at different tube currents. Images at the different tube currents were reconstructed with the fi...

The IRAF† CCD reduction package, ccdred, provides tools for the easy and efficient reduction of CCD images. The standard reduction operations are replacement of bad pixels, subtraction of an overscan or prescan bias, subtraction of a zero level image, subtraction of a dark count image, division by a flat field calibration image, division by an illumination correction, subtraction of a fringe im...

A surface roughness measurement technique, based on an optical method using a computer vision system, was investigated for applicability to inprocess monitoring of surface quality. The developed vision system uses a CCD camera for scanning gray-scale images from an area of the machined workpiece. This images were analysed with digital image processing system. Some new optical roughness paramete...

We proposed a reconstruction method for the occluded region of three-dimensional (3D) object using the depth extraction based on the optical flow and triangular mesh reconstruction in integral imaging. The depth information of sub-images from the acquired elemental image set is extracted using the optical flow with sub-pixel accuracy, which alleviates the depth quantization problem. The extract...