Systems Engineering Considerations in the All Digital Television Production and Transmission Center

The World's First All-Digital Television Production

SMPTE Journal ◽

10.5594/j04028 ◽

1987 ◽

Vol 96 (1) ◽

pp. 11-15

Author(s):

Michel Oudin

Keyword(s):

Digital Television ◽

Television Production

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Abstraction: An alternative neurocognitive account of recognition, prediction, and decision making

Behavioral and Brain Sciences ◽

10.1017/s0140525x19003017 ◽

2020 ◽

Vol 43 ◽

Author(s):

Valerie F. Reyna ◽

David A. Broniatowski

Keyword(s):

Decision Making ◽

Software Engineering ◽

Systems Engineering ◽

Evidence Based ◽

Extensive Literature ◽

Trace Theory ◽

Fuzzy Trace Theory ◽

Abstract Representations ◽

Technical Systems

Abstract Gilead et al. offer a thoughtful and much-needed treatment of abstraction. However, it fails to build on an extensive literature on abstraction, representational diversity, neurocognition, and psychopathology that provides important constraints and alternative evidence-based conceptions. We draw on conceptions in software engineering, socio-technical systems engineering, and a neurocognitive theory with abstract representations of gist at its core, fuzzy-trace theory.

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

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100112713 ◽

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.

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