Television monitor field shifter and an opto-electronic method f

Details Television monitor field shifter and an opto-electronic method f Television monitor field shifter and an opto-electronic method f

1987-11-25

1989-04-04

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 91, 358 92, H04N 1300

Patent

active

048190640

ABSTRACT:
A method and apparatus for obtaining a stereo image with reduced depth distortion and optimum depth resolution. Static and dynamic depth distortion and depth resolution trade-off is provided. Cameras obtaining the images for a stereo view are converged at a convergence point behind the object to be presented in the image, and (a) the collection-surface-to-object distance, (b) the camera separation distance, and (c) the focal lengths of zoom lenses for the cameras are all increased. Doubling the distances cuts the static depth distortion in half while maintaining image size and depth resolution. Dynamic depth distortion is minimized by panning a stereo view-collecting camera system about a circle which passes through the convergence point and the cameras' first nodal points. Horizontal field shifting of the television fields on a television monitor brings both the monitor and the stereo views within the viewer's limit of binocular fusion.

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patent: 4704627 (1987-11-01), Yuyama et al.
patent: 4723159 (1988-02-01), Imsand

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