Switching Algorithm and Data Acquisition for Pigeon Hole Imaging System

B-ultrasonic is widely used in medical diagnostics and other fields, because of its non-invasive, no radiation, etc. Early B-ultrasonic with analog imaging system cant achieve B-ultrasonic image processing, data storage and other operations. With the development of computer technology and electronic technology, Digital B-ultrasonic systems are increasingly used in actual diagnosis, the paper through the use of digital imaging system to achieve B-ultrasonic front ultrasound imaging, reuse embedded microcontrollers Camera interface for B-ultrasonic acquisition of image data, and on this platform to achieve a B-ultrasonic application software development. System testing show that the system data acquisition is stability, and easy to operate, reliable, also can be widely used in medical and industrial ultrasonic fields. Key words: B-ultrasonic; Data Acquisition; Camera; Digitizing

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Experimental Studies on an Efficient Catheter Array Imaging System

Ultrasonic Imaging ◽

10.1177/016173469501700201 ◽

1995 ◽

Vol 17 (2) ◽

pp. 83-94 ◽

Cited By ~ 1

Author(s):

M. O'Donnell ◽

B.M. Shapo ◽

M.J. Eberle ◽

D.N. Stephens

Keyword(s):

Data Acquisition ◽

Imaging System ◽

Experimental Studies ◽

Slight Modification ◽

Beam Width ◽

Synthetic Aperture ◽

Reconstruction Method ◽

Operating Modes ◽

Imaging Results ◽

Optimal Reconstruction

A new synthetic aperture system for intraluminal imaging has been tested using a 32 element, 20 MHz circular array wrapped around the surface of a catheter appropriate for coronary artery applications. This system is based on an optimal reconstruction method that has been extended to reduce grating lobes using a slight modification to classic synthetic aperture data acquisition. Optimal reconstruction filters have been derived for two different operating modes based on this new data acquisition strategy. Imaging results on a wire target phantom show that spatial resolution is a simple linear function of depth, reaching a minimum 6 dB beam width of approximately 2.2 wavelengths. Sidelobe levels are inherently high for this system because of the small number of firings used to synthesize an aperture. Optimal reconstruction filters, however, can reduce these sidelobes to at least −20 dB in all cases. Finally, images of an excised segment of porcine femoral artery demonstrate the overall performance of the system as an intraluminal imager.

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Digital data acquisition and processing for a neutron-gamma-ray imaging system

2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSS/MIC) ◽

10.1109/nssmic.2012.6551381 ◽

2012 ◽

Cited By ~ 3

Author(s):

A. Poitrasson-Riviere ◽

M. Flaska ◽

M.C. Hamel ◽

J.K. Polack ◽

M.F. Becchetti ◽

...

Keyword(s):

Data Acquisition ◽

Gamma Ray ◽

Imaging System ◽

Digital Data ◽

Gamma Ray Imaging ◽

Digital Data Acquisition ◽

Data Acquisition And Processing

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The Effect of Data Acquisition Configuration on Simultaneous Algebraic Reconstruction Technique Algorithm for Microwave Imaging System

2018 Asia-Pacific Microwave Conference (APMC) ◽

10.23919/apmc.2018.8617224 ◽

2018 ◽

Author(s):

Basari ◽

Ria Aprilliyani

Keyword(s):

Data Acquisition ◽

Imaging System ◽

Microwave Imaging ◽

Reconstruction Technique ◽

Algebraic Reconstruction Technique ◽

Simultaneous Algebraic Reconstruction Technique ◽

Algebraic Reconstruction

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Design of the data acquisition and real-time imaging system for UIRFPA

10.1117/12.866300 ◽

2010 ◽

Author(s):

Taoli Pan ◽

Guangzhong Xie ◽

Yun Zhou ◽

Yadong Jiang ◽

Zhiming Wu

Keyword(s):

Data Acquisition ◽

Real Time ◽

Imaging System ◽

Real Time Imaging

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Fluorescence based rapid optical volume screening system (OVSS) for interrogating multicellular organisms

Scientific Reports ◽

10.1038/s41598-021-86951-3 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Jigmi Basumatary ◽

Tarannum Ara ◽

Amartya Mukherjee ◽

Debanjan Dutta ◽

Upendra Nongthomba ◽

...

Keyword(s):

Data Acquisition ◽

Developmental Stages ◽

Imaging System ◽

Light Sheet ◽

Yolk Sac ◽

Rapid Screening ◽

Acquisition Time ◽

Volume Data ◽

Multiple Organs ◽

Multicellular Organisms

AbstractContinuous monitoring of large specimens for long durations requires fast volume imaging. This is essential for understanding the processes occurring during the developmental stages of multicellular organisms. One of the key obstacles of fluorescence based prolonged monitoring and data collection is photobleaching. To capture the biological processes and simultaneously overcome the effect of bleaching, we developed single- and multi-color lightsheet based OVSS imaging technique that enables rapid screening of multiple tissues in an organism. Our approach based on OVSS imaging employs quantized step rotation of the specimen to record 2D angular data that reduces data acquisition time when compared to the existing light sheet imaging system (SPIM). A co-planar multicolor light sheet PSF is introduced to illuminate the tissues labelled with spectrally-separated fluorescent probes. The detection is carried out using a dual-channel sub-system that can simultaneously record spectrally separate volume stacks of the target organ. Arduino-based control systems were employed to automatize and control the volume data acquisition process. To illustrate the advantages of our approach, we have noninvasively imaged the Drosophila larvae and Zebrafish embryo. Dynamic studies of multiple organs (muscle and yolk-sac) in Zebrafish for a prolonged duration (5 days) were carried out to understand muscle structuring (Dystrophin, microfibers), primitive Macrophages (in yolk-sac) and inter-dependent lipid and protein-based metabolism. The volume-based study, intensity line-plots and inter-dependence ratio analysis allowed us to understand the transition from lipid-based metabolism to protein-based metabolism during early development (Pharyngula period with a critical transition time, $$\tau _c = 50$$ τ c = 50 h post-fertilization) in Zebrafish. The advantage of multicolor lightsheet illumination, fast volume scanning, simultaneous visualization of multiple organs and an order-less photobleaching makes OVSS imaging the system of choice for rapid monitoring and real-time assessment of macroscopic biological organisms with microscopic resolution.

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Cellular-resolution in vivo tomography in turbid tissue through digital aberration correction

10.31224/osf.io/h4wrv ◽

2019 ◽

Author(s):

en bo

Keyword(s):

Data Acquisition ◽

Imaging System ◽

Scale Up ◽

Disease Diagnosis ◽

Light Signal ◽

Aperture Synthesis ◽

Aberration Correction ◽

Optical Aberrations ◽

Cellular Processes

Noninvasive tomographic imaging of cellular processes in vivo may provide valuable cytological and histological information for disease diagnosis. However, such strategies are usually hampered by optical aberrations caused by the imaging system and tissue turbidity. State-of-the-art aberration correction methods require that the light signal be phase stable over the full-field data acquisition period, which is difficult to maintain during dynamic cellular processes in vivo. Here we show that any optical aberrations in the path length difference (OPD) domain can be corrected without the phase stability requirement based on maximum intensity assumption. Specifically, we demonstrate a novel optical tomographic technique, termed amplitude division aperture synthesis optical coherence tomography (ADAS-OCT), which corrects aberrations induced by turbid tissues by physical aperture synthesis and simultaneously data acquisition from sub-apertures. Even with just two sub-apertures, ADAS-OCT enabled in vivo visualization of red blood cells in human labial mucosa. We further demonstrated that adding sub-apertures could significantly scale up the aberration correction capability. This technology has the potential to impact a number of clinical areas where noninvasive examinations are preferred, such as blood count and cancers detection.

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