A time- and memory-sharing executive program for quick-response, on-line applications

1965 ◽  
Author(s):  
James W. Forgie
Keyword(s):  
Quick Response ◽  
On Line ◽  
Memory Sharing ◽  
Executive Program

scholarly journals Annotation of the medical images using quick response codes

2017 ◽  
Vol 14 (1) ◽  
pp. 175-196 ◽  
Author(s):  
Girūta Kazakevicūtė-Januskevicienė ◽  
Andrius Usinskas ◽  
Eugenijus Januskevicius ◽  
Jurgita Usinskienė ◽  
Simona Letautienė
Keyword(s):  
Average Length ◽  
Two Dimensional ◽  
Quick Response ◽  
Jpeg 2000 ◽  
Qr Codes ◽  
Information Preservation ◽  
Industrial Grade ◽  
On Line ◽  
Information Detection ◽  
Acceptable Image Quality

The article proposes a novel annotating method of sufficient capacity and intended not only on-line but for off-line using for information preservation all advantages of two-dimensional barcodes. The semantic annotations are embedded directly into the reasonably chosen area of the image and bound by spatial identifiers with corresponding regions. The embedding method deals with the different quality requirements of the regions. Two-dimensional QR codes are used as the physical carrier of the annotation, providing the industrial grade for information detection, resilience and error correction capabilities. The annotation is distributed in a series of QR codes for efficient use of the available space. The results reveal that the spatial domain based technique is faster and has higher data embedding capacity than JPEG 2000 based. The amount of embedded information preserving the acceptable image quality in both proposed embedding cases is higher the average length of the presented original descriptions.

On-Line Case Discussion

2003 ◽  
pp. 396-403
Author(s):  
Henri Isaac
Keyword(s):  
Experimental Method ◽  
Web Sites ◽  
Case Discussion ◽  
Research Focus ◽  
Satisfaction Questionnaire ◽  
The Past ◽  
Mba Program ◽  
Executive Mba ◽  
On Line ◽  
Executive Program

Over the past several years, a number of research studies have investigated the application of Internet technologies to the classroom. Most of the research focus on asynchronous technology such as newsgroups or Web sites, or on GSS. No research investigates the possibility of conducting on-line case discussion. As case discussion in the classroom is a key pedagogical method in an executive program, our research examines a methodology for on-line case discussion. In this chapter, the results of an experiment conducted in an executive MBA program to investigate the use of on-line case discussion is presented. First, other research to determine the distinguishing characteristics of case discussion is reviewed. Then, the pedagogical context for the experiment is provided, and the experimental method is described. Finally, the results of a satisfaction questionnaire completed by the participants in the experiment are presented. Suggestions for further research and experiments are also discussed.

scholarly journals Utilización de códigos QR para la evaluación continua en educación superior

2016 ◽  
pp. 65-85
Author(s):  
Virginia Jiménez Rodríguez ◽  
Carmen Llopis Pablos ◽  
Patricia Jara Calaforra Faubel ◽  
Pierre Josué Almagro Lapo ◽  
Jesús María Alvarado Izquierdo ◽  
...  
Keyword(s):  
Educación Superior ◽  
Quick Response ◽  
Educacion Superior ◽  
On Line ◽  
Trabajo Social

La implementación de las tecnologías de la información y la comunicación (TIC) en el ámbito educativo se ha acelerado en los últimos años. En el entorno universitario se utilizan plataformas educativas que dan acceso a los contenidos de diferentes asignaturas, así como la comunicación on-line entre docente y alumnado.El presente proyecto pretendía mejorar la calidad docente, así como la motivación y satisfacción de los estudiantes del primer curso de grado, a través de la inserción de nuevas herramientas TIC [formularios Google y códigos QR (quick response codes)] que permitieran al alumnado la evaluación continua de su propio aprendizaje, haciendo especial hincapié en la aplicación de estrategias metacognitivas para la resolución de problemas.Se realizó durante el curso académico 2014-2015 en la asignatura de Psicología Básica (prácticas). La asignatura Psicología Básica se imparte en el primer curso del grado de Trabajo Social en la Universidad Complutense de Madrid. Consta de seis créditos ECTS (Sistema Europeo de Transferencia y Acumulación de Créditos) y, como tal, los estudiantes reciben dos horas de clase teórica y una hora de clase práctica a la semana. Fue durante la hora semanal de prácticas donde se llevó a cabo el presente proyecto de innovación.

The on-line use of histogram data for high-speed correction and alignment of electron microscope images

1984 ◽  
Vol 42 ◽  
pp. 556-557
Author(s):  
William Krakow
Keyword(s):  
Power Spectrum ◽  
High Speed ◽  
Direct Memory Access ◽  
Digital Television ◽  
Contrast Transfer Function ◽  
The Past ◽  
High Resolution Tem ◽  
On Line ◽  
Correction Of Astigmatism ◽  
The Fourier Transform

In the past few years on-line digital television frame store devices coupled to computers have been employed to attempt to measure the microscope parameters of defocus and astigmatism. The ultimate goal of such tasks is to fully adjust the operating parameters of the microscope and obtain an optimum image for viewing in terms of its information content. The initial approach to this problem, for high resolution TEM imaging, was to obtain the power spectrum from the Fourier transform of an image, find the contrast transfer function oscillation maxima, and subsequently correct the image. This technique requires a fast computer, a direct memory access device and even an array processor to accomplish these tasks on limited size arrays in a few seconds per image. It is not clear that the power spectrum could be used for more than defocus correction since the correction of astigmatism is a formidable problem of pattern recognition.

Image registration with a computer driven S.T.E.M.

1978 ◽  
Vol 36 (1) ◽  
pp. 98-99
Author(s):  
A.M.H. Schepman ◽  
J.A.P. van der Voort ◽  
J.E. Mellema
Keyword(s):  
Spot Size ◽  
Scanning Transmission Electron Microscope ◽  
Small Computer ◽  
Structural Studies ◽  
Area Of Interest ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Specimen Area ◽  
On Line ◽  
Minimum Distances

A Scanning Transmission Electron Microscope (STEM) was coupled to a small computer. The system (see Fig. 1) has been built using a Philips EM400, equipped with a scanning attachment and a DEC PDP11/34 computer with 34K memory. The gun (Fig. 2) consists of a continuously renewed tip of radius 0.2 to 0.4 μm of a tungsten wire heated just below its melting point by a focussed laser beam (1). On-line operation procedures were developped aiming at the reduction of the amount of radiation of the specimen area of interest, while selecting the various imaging parameters and upon registration of the information content. Whereas the theoretical limiting spot size is 0.75 nm (2), routine resolution checks showed minimum distances in the order 1.2 to 1.5 nm between corresponding intensity maxima in successive scans. This value is sufficient for structural studies of regular biological material to test the performance of STEM over high resolution CTEM.

Design and calibration of an IVEM for general 3-dimensional imaging of non-diffracting materials

1992 ◽  
Vol 50 (2) ◽  
pp. 1040-1041
Author(s):  
Neil Rowlands ◽  
Jeff Price ◽  
Michael Kersker ◽  
Seichi Suzuki ◽  
Steve Young ◽  
...  
Keyword(s):  
3D Imaging ◽  
Tomographic Reconstruction ◽  
Three Dimensional ◽  
3 Dimensional ◽  
3D Microstructure ◽  
Image Translation ◽  
Digital Correlation ◽  
On Line ◽  
Mechanical Stage ◽  
Projection Angle

Three-dimensional (3D) microstructure visualization on the electron microscope requires that the sample be tilted to different positions to collect a series of projections. This tilting should be performed rapidly for on-line stereo viewing and precisely for off-line tomographic reconstruction. Usually a projection series is collected using mechanical stage tilt alone. The stereo pairs must be viewed off-line and the 60 to 120 tomographic projections must be aligned with fiduciary markers or digital correlation methods. The delay in viewing stereo pairs and the alignment problems in tomographic reconstruction could be eliminated or improved by tilting the beam if such tilt could be accomplished without image translation.A microscope capable of beam tilt with simultaneous image shift to eliminate tilt-induced translation has been investigated for 3D imaging of thick (1 μm) biologic specimens. By tilting the beam above and through the specimen and bringing it back below the specimen, a brightfield image with a projection angle corresponding to the beam tilt angle can be recorded (Fig. 1a).

Software pattern recognition applied to nanodiffraction patterns from a STEM instrument

1986 ◽  
Vol 44 ◽  
pp. 694-695
Author(s):  
G.Y. Fan ◽  
J.M. Cowley
Keyword(s):  
Image Processing ◽  
Pattern Recognition ◽  
Computer Software ◽  
Processing System ◽  
Light Level ◽  
Host Computer ◽  
Low Light ◽  
Image Processing System ◽  
Recent Developments ◽  
On Line

In recent developments, the ASU HB5 has been modified so that the timing, positioning, and scanning of the finely focused electron probe can be entirely controlled by a host computer. This made the asynchronized handshake possible between the HB5 STEM and the image processing system which consists of host computer (PDP 11/34), DeAnza image processor (IP 5000) which is interfaced with a low-light level TV camera, array processor (AP 400) and various peripheral devices. This greatly facilitates the pattern recognition technique initiated by Monosmith and Cowley. Software called NANHB5 is under development which, instead of employing a set of photo-diodes to detect strong spots on a TV screen, uses various software techniques including on-line fast Fourier transform (FFT) to recognize patterns of greater complexity, taking advantage of the sophistication of our image processing system and the flexibility of computer software.

Sign in / Sign up

Export Citation Format

Share Document