Title :
A Video-Dimension Analyzer
Author :
Yin, Frank C.P. ; Tompkins, William R. ; Peterson, Kirk Lowery ; Intaglietta, Marcos
Author_Institution :
Department of Applied Mechanics and Engineering Sciences-Bioengineering, University of California at San Diego, La Jolla, Calif. 92037.
Abstract :
A dual-window video densitometer was developed for the measurement of dimensions of televised scenes. Filter and hold circuitry used to convert the output into analog signals proportional to the dimension being measured obviate the use of specialized computers. The system was utilized to study the change of dimension of the in vivo human heart.
Keywords :
Cameras; Circuits; Detectors; Layout; Mechanical variables measurement; Motion measurement; Signal processing; Switches; TV; Voltage; Cardiac Volume; Computers, Analog; Heart Function Tests; Humans; Online Systems; Television;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1972.324142
