Special Purpose Operating System for Data Processing of Analogue High-Speed Spectrophotometric Information

1979 ◽  
pp. 751-755
Author(s):  
Velisar Cholakov ◽  
Anton Stoimenov ◽  
Katjusha Stoimenova ◽  
Nikolina Pelova ◽  
Bojidar Simeonov ◽  
...  
Keyword(s):  
Operating System ◽  
Data Processing ◽  
High Speed

syris: a flexible and efficient framework for X-ray imaging experiments simulation

2017 ◽  
Vol 24 (6) ◽  
pp. 1283-1295 ◽  
Author(s):  
Tomáš Faragó ◽  
Petr Mikulík ◽  
Alexey Ershov ◽  
Matthias Vogelgesang ◽  
Daniel Hänschke ◽  
...  
Keyword(s):  
Motion Estimation ◽  
Data Processing ◽  
Graphics Processing Units ◽  
High Speed ◽  
Real Data ◽  
Estimation Accuracy ◽  
Processing Parameter ◽  
X Ray ◽  
X Ray Imaging ◽  
Imaging Conditions

An open-source framework for conducting a broad range of virtual X-ray imaging experiments,syris, is presented. The simulated wavefield created by a source propagates through an arbitrary number of objects until it reaches a detector. The objects in the light path and the source are time-dependent, which enables simulations of dynamic experiments,e.g.four-dimensional time-resolved tomography and laminography. The high-level interface ofsyrisis written in Python and its modularity makes the framework very flexible. The computationally demanding parts behind this interface are implemented in OpenCL, which enables fast calculations on modern graphics processing units. The combination of flexibility and speed opens new possibilities for studying novel imaging methods and systematic search of optimal combinations of measurement conditions and data processing parameters. This can help to increase the success rates and efficiency of valuable synchrotron beam time. To demonstrate the capabilities of the framework, various experiments have been simulated and compared with real data. To show the use case of measurement and data processing parameter optimization based on simulation, a virtual counterpart of a high-speed radiography experiment was created and the simulated data were used to select a suitable motion estimation algorithm; one of its parameters was optimized in order to achieve the best motion estimation accuracy when applied on the real data.syriswas also used to simulate tomographic data sets under various imaging conditions which impact the tomographic reconstruction accuracy, and it is shown how the accuracy may guide the selection of imaging conditions for particular use cases.

scholarly journals DEVELOPMENT OF A HIGH-SPEED VIDEOGRAMMETRIC MEASUREMENT SYSTEM WITH APPLICATION IN LARGE-SCALE SHAKING TABLE TEST

2019 ◽  
Vol IV-2/W7 ◽  
pp. 33-38
Author(s):  
S. Gao ◽  
Z. Ye ◽  
C. Wei ◽  
X. Liu ◽  
X. Tong
Keyword(s):  
Data Processing ◽  
Measurement System ◽  
High Speed ◽  
Large Scale ◽  
Moving Objects ◽  
Shaking Table Test ◽  
Image Sequences ◽  
Shaking Table ◽  
Dynamic Monitoring ◽  
Observation Network

<p><strong>Abstract.</strong> The high-speed videogrammetric measurement system, which provides a convenient way to capture three-dimensional (3D) dynamic response of moving objects, has been widely used in various applications due to its remarkable advantages including non-contact, flexibility and high precision. This paper presents a distributed high-speed videogrammetric measurement system suitable for monitoring of large-scale structures. The overall framework consists of hardware and software two parts, namely observation network construction and data processing. The core component of the observation network is high-speed cameras to provide multiview image sequences. The data processing part automatically obtains the 3D structural deformations of the key points from the captured image sequences. A distributed parallel processing framework is adopted to speed up the image sequence processing. An empirical experiment was conducted to measure the dynamics of a double-tube five-layer building structure on the shaking table using the presented videogrammetric measurement system. Compared with the high-accuracy total station measurement, the presented system can achieve a sub-millimeter level of coordinates discrepancy. The 3D deformation results demonstrate the potential of the non-contact high-speed videogrammetric measurement system in dynamic monitoring of large-scale shake table tests.</p>

scholarly journals High-Speed Data Processing Module for LLRF

2015 ◽  
Vol 62 (3) ◽  
pp. 1083-1090 ◽  
Author(s):  
D. Makowski ◽  
A. Mielczarek ◽  
P. Perek ◽  
A. Napieralski ◽  
L. Butkowski ◽  
...  
Keyword(s):  
Data Processing ◽  
High Speed ◽  
Processing Module ◽  
High Speed Data

scholarly journals Research on Sampling Data Processing of High Speed Pulse

2018 ◽  
Vol 452 ◽  
pp. 042009
Author(s):  
Zhenjie Zeng ◽  
Xiaofei Zhu ◽  
Hao Chen ◽  
Kai Wu ◽  
Shiju Qi ◽  
...  
Keyword(s):  
Data Processing ◽  
High Speed

A ROS-Simulink Real-Time Communication Bridge Using UDP With a Driver-in-the-Loop Application

2016 ◽  
Author(s):  
Mohamed Wahba ◽  
Robert Leary ◽  
Nicolás Ochoa-Lleras ◽  
Jariullah Safi ◽  
Sean Brennan
Keyword(s):  
Operating System ◽  
Real Time ◽  
High Speed ◽  
Performance Metrics ◽  
Proof Of Concept ◽  
Physical Separation ◽  
Robot Operating System ◽  
Time Latency ◽  
And Performance ◽  
Fast Transmission

This paper presents implementation details and performance metrics for software developed to connect the Robot Operating System (ROS) with Simulink Real-Time (SLRT). The communication takes place through the User Datagram Protocol (UDP) which allows for fast transmission of large amounts of data between the two systems. We use SLRT’s built-in UDP communication and binary packing blocks to send and receive the data over a network. We use implementation metrics from several examples to illustrate the effectiveness and drawbacks of this bridge in a real-time environment. The time latency of the bridge is analyzed by performing loop-back tests and obtaining the statistics of the time delay. A proof of concept experiment is presented that utilizes two laboratories that ran a driver-in-the-loop system despite a large physical separation. This work provides recommendations for implementing data integrity measures as well as the potential to use the system with other applications that demand high speed real-time communication.

High-Speed Digital Data Processing

1956 ◽  
Vol 26 ◽  
pp. 6-7
Author(s):  
WILLIAM KNEEN
Keyword(s):  
Data Processing ◽  
High Speed ◽  
Digital Data ◽  
Digital Data Processing
Sign in / Sign up

Export Citation Format

Share Document