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The following topics are dealt with : therapeutic endoscopy; diagnostic endoscopy; nuclear medicine systems and techniques; molecular imaging; electric tomography systems; homeland security systems and techniques; inverse scattering; microwave imaging; moving image processing; 3D imaging; multifusion medical imaging; feature extraction; digital radiography ; calibration; image analysis; inspection;...
On behalf of the Technical and Local Committee of the IEEE International Conference on Imaging Systems and Techniques (IST 2010), I welcome you in the historical and beautiful city of Thessaloniki, Greece. Thessaloniki is one of the largest cities of Greece with great historical and cultural significance, and capital of the Greek region of Macedonia, owing its name to the sister of Alexander the Great...
This paper presents the design of two (2) novel endoscopic capsules. Using current capsule endoscopy technologies approximately 70,000 images of the human gastric tract are obtained during the examination. Usually, these images are reviewed by a gastroenterologist in a form of a video at various speeds (5 - 40 frames/sec). A physician spends 55 to 180 minutes reading these results. This represents...
A color CCD (charge-coupled device) camera is used as a chemical detector to quantify fluorescence emission intensities from two kinds of optofluidic device platforms. The fluorophores responsive to oxygen are immobilized in photo-patternable hydrogel matrices. The first device is a hydrogel sensor array formed within a commercial silicone elastomer imaging chamber. The second one involves a double-chamber...
Remote Sensing systems enhance the spatial quality of low-resolution Multi-Spectral (MS) images using information from Pan-chromatic (PAN) images under the pansharpening framework. Most decimated multi-resolution pansharpening approaches upsample the low-resolution MS image to match the resolution of the PAN image. Consequently, a multi-level wavelet decomposition is performed, where the edge information...
The introduction of distributed or parallel medical video processing is a constant growing need, because despite the large increase of modern workstations computational power, the amount of data in medical videos is growing rapidly increasing the computational needs for processing and mining. In this paper the distributed processing approach of a video summarization technique for endoscopy videos...
The development and assessment of a readout system based on Field Programmable Gate Array (FPGA) for dedicated nuclear medicine cameras is presented. We have used Xilinx Spartan3e, which is one of the simplest FPGA evaluation boards. The aim of this work is to offer a simple, opensource data acquisition tool, which provides accurate results for nuclear imaging applications.. The system has been evaluated...
In this article we present the performance results in tomographic mode of a low cost PET camera, dedicated for small animal imaging. The system consists of two pixelated LSO crystal arrays, two Hamamatsu H8500 PSPMTs, fast amplification electronics and an FPGA based read out system. Tomographic experiments were carried out using phantoms consisted by capillary line sources positioned on a rotated...
Our attempt consists of modelling the heart left ventricle at stress and rest situation, using the myocardial scintigraphic data and focuses on how to demonstrate differences in obtained 3D stress/rest images. 70 cardiac patients had completed myocardium tests by Tc-99m tetrofosmin and a GE-Starcam - 4000 SPECT gamma - camera. SPECT (Single Photon Emission Computed Tomography) slices were created...
The aim of this study is to reveal the discriminative potential of energy related metabolites in brain gliomas classification. The proposed analysis considers two aspects, the statistical and biological verification of metabolites' effects. In particular, Magnetic Resonance Spectroscopic Imaging (MRSI) is first employed for the statistical evaluation of metabolites. Five of the identified significant...
In this study, backscattering optical measurements from this scattering media and biological tissue were performed using different polarimetric detection techniques. The outcome of this study may facilitate the early diagnosis, monitoring, and assessment of disease progress, with high sensitivity and specificity.
The MRS metabolites quantification procedure has attracted the scientific interest of the engineering community, regarding the development of noninvasive and computationally efficient methodologies. Significant contributions based on Artificial Intelligence (AI) tools, such as Neural Networks (NNs), with good results have been presented lately but showing several drawbacks already discussed by the...
Fluidised beds are commonly used in the pharmaceutical industry for batch processing of solid particles, e.g. granulating and drying solid materials and coating compressed tablets. Currently, pharmaceutical fluidised beds are operated by trial-and-error, because of the lack of online tools to monitor the internal behaviour, such as gas-solids distribution, and to measure the operation parameters,...
Electrical capacitance tomography (ECT) has been developed for two decades to visualize the internal behavior of industrial processes containing dielectric components. Three different ECT systems have been developed: (1) based on a charge/discharge capacitance measuring circuit, (2) based on an AC circuit and (3) based on an impedance analyzer. In this paper the operation principles, calibration methods...
A sensor typically used in electrical capacitance tomography (ECT) was generalized to reconstruct the conductivity distribution in this paper. Analytical model was established for the sensor. As a result, the sensitivity matrix and the electric field lines can be obtained directly by using the formulae, which are fast and simple. Two reconstruction methods are proposed based on the model, i.e. iterative...
The factorization method was introduced to electrical capacitance tomography for sensors of non-circular cross sections in this paper. Unlike the traditional methods based on sensitivity theorem, it is a direct algorithm of the image reconstruction, as neither matrix inversion nor iterative process is needed. The reconstruction process was simple, as the test function was calculated according to sensors...
The dosimetric characteristics of a new type of Metal-Oxide-Semiconductor field effect transistor (MOSFET), sensitive to both thermal and intermediate-fast neutrons were studied. The dosemeters were manufactured at LAAS-CNRS Laboratory in Toulouse, France. They consist of two identical MOSFETs, fabricated on the same silicon chip and showed excellent linearity for wide dose ranges. In order to be...
In this manuscript, we describe a fully pipelined single chip architecture for implementing a new simultaneous image compression and encryption method suitable for real-time applications. The proposed method exploits the DCT properties to achieve the compression and the encryption simultaneously. First, to realize the compression, 8-point DCT applied to several images are done. Second, contrary to...
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