Magnetic Media for the Digital Television Tape Recorder

SMPTE Journal ◽  
1986 ◽  
Vol 95 (10) ◽  
pp. 1004-1008 ◽  
Author(s):  
Arthur R. Moore ◽  
Michael P. Sharrock
Keyword(s):  
Tape Recorder ◽  
Digital Television ◽  
Magnetic Media

The SMPTE Type D-1 Digital Television Tape Recorder — Error Control

SMPTE Journal ◽  
1986 ◽  
Vol 95 (11) ◽  
pp. 1144-1149 ◽  
Author(s):  
J. H. Wilkinson
Keyword(s):  
Error Control ◽  
Tape Recorder ◽  
Digital Television ◽  
Type D

Video tape recorder with digital television standards converter

1990 ◽  
Vol 36 (3) ◽  
pp. 572-579
Author(s):  
M. Tomita ◽  
T. Ohtsuki ◽  
S. Ogata ◽  
H. Niwa
Keyword(s):  
Tape Recorder ◽  
Digital Television ◽  
Video Tape ◽  
Video Tape Recorder

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.

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