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AssigneeErnst Leitz G.m.b.H.
InventorsLudwig Leitz, Knut Heitmann, Horst Schmidt
Estimating the term…
Apparatus to automatically analyze stereoscopic images comprising the determination of the maximum degree of correlation between two similar images of the same object projected by two objectives, for instance in a rangefinder, wherein the two images are superimposed on one or two spatial frequency filters identical in their structures, and wherein the particular generated superimposition signal, is preferably applied to a particular photoelectric detector and wherein the output signals from the latter are used for display and/or control purposes. The apparatus is improved by a system (20,20',21,21',22-25; 30-34) for generating a reference beam indicating mechanical changes affecting the image position of at least one of the measuring beams, at least one photoelectric detector (28,29;40) being associated with the one reference beam, the output signals from the one detector corresponding to the mechanical changes being used to display and/or correct the changes or the effects of same.
In an apparatus for analyzing stereoscopic images and determining the maximum correlation rate of two identical images of an object, having two objectives forming said images and including at least one spatial frequency filter superimposing said images, further containing a photoelectric receiver system coordinated to said spatial frequency filter and producing electrical output signals used in indicating and/or controlling means, the improvements comprising:
In an apparatus for analyzing stereoscopic images and determining the maximum correlation rate of two identical images of an object, having two objectives forming said images and including at least one spatial frequency filter superimposing said images, further containing a photoelectric receiver system coordinated to said spatial frequency filter responsive to light fluxes leaving said spatial filter and producing electrical output signals used in indicating and/or controlling means, the improvement comprising:
In an apparatus for analyzing stereoscopic images and determining the maximum correlation rate of two identical images of an object, having two objectives forming said images and including at least one spatial frequency filter superimposing said images, further containing a photoelectric receiver system coordinated to said spatial frequency filter responsive to light fluxes leaving said spatial frequency filter and/or controlling means, the improvement comprising:
Dependencies are inferred from the claim text.