Stereoscopic video camera with image sensors having variable effective position
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United States of America Patent
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Aug 25, 1992
Issued Date -
N/A
app pub date -
May 9, 1991
filing date -
Oct 11, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electronic stereoscopic video camera for capture and playback of still or moving images. The camera of the invention employs a signal processing means to process the video output of left and right image sensors in order to locate the positions of left and right images in the camera's left and right image fields, respectively. As a result of comparison of the left and right image locations, control signals are generated for adjusting the effective position of one or both of the sensors in relation to a set of fixedly mounted camera lenses. The invention permits rapid and accurate control of a variety of video camera parameters by employing a self-correcting closed loop servo means in which the unmodified output of the left and right image sensors of a camera serves as feedback for generating control signals. The control signals are employed to adjust the effective position of left and right camera sensors in relation to fixedly mounted camera lenses, to control the convergence or zero parallax setting of the camera, or camera recentration.
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