US3765094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereo-photogrammetric system
Assignee: CAMBRIDGE INSTRUMENTS Inc A DEL CORP
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Filing: 1970-08-14
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Granted: 1973-10-16
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Expires: 1990-08-14
Abstract
Abstract Stereo-photogrammetric method and apparatus for the metric evaluation and restitution of stereoscopic photographs of an object in numerical and graphical displays.
Inventors
- 👤 H Yzerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
G; G01; G01C; G01C11/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
154 words
A method for restitution of stereo-photographs, comprising the steps of: a. measurably viewing stereoscopically associated points on said stereo-photographs with a stereoscope Having movable stages for scanning said stereo-photographs; b. scanning stereoscopically associated points in said stereophotographs by moving said stages with a plurality of undeflectible, orthogonally resolved space rod components, said space rod components functionally relating by their positions at their first ends indirectly to the stereo-photographs, and at their second ends directly to space coordinates; c. measuring the coordinates of said stereoscopically associated points in said stereo-photographs; d. computing, using the coordinates so measured, corrections to the effective lever arms of said space rod components and decentrations of said stereo-photographs; and e. orthogonally and independently introducing said computed corrections and decentrations in respect of each stereophotograph to realize said indirect functional relation between said first ends of said space rod components and said stereophotographs, whereby said restitution of said stereophotographs is accomplished.
Claim 2
Independent Claim
154 words
A method for restitution of stereo-photographs, comprising the steps of: a. measurably viewing stereoscopically associated points on said stereo-photographs with a stereoscope Having movable stages for scanning said stereo-photographs; b. scanning stereoscopically associated points in said stereophotographs by moving said stages with a plurality of undeflectible, orthogonally resolved space rod components, said space rod components functionally relating by their positions at their first ends indirectly to the stereo-photographs, and at their second ends directly to space coordinates; c. measuring the coordinates of said stereoscopically associated points in said stereo-photographs; d. computing, using the coordinates so measured, corrections to the effective lever arms of said space rod components and decentrations of said stereo-photographs; and e. orthogonally and independently introducing said computed corrections and decentrations in respect of each stereophotograph to realize said indirect functional relation between said first ends of said space rod components and said stereophotographs, whereby said restitution of said stereophotographs is accomplished.
Claim 3
Dependent Claim
43 words
The method of claim 1 wherein said introduction of said computed corrections and decentrations is made by driving screws through rotations proportional to said corrections and decentrations, respectively, said screws connecting said first ends of said space rod components with said movable stages.
Claim 4
Dependent Claim
53 words
The method of claim 2 wherein said computations of said corrections and decentrations are accomplished by connecting electronic computer means to receive said measured coordinates and by programming said electronic computer means with the nominal principal distances of each photograph, the tips and tilts of each photograph and the correction for radial distortions.
Claim 5
Independent Claim
180 words
A method for restitution of a pair of stereo-photographs comprising the steps of: a. stereoscopically scanning said photographs with a stereoscope member of a restitution module; b. generating first electrical signals by moving a hand positioner module in response to said scanning; c. transmitting said first electrical signals for driving a graphical display module; d. generating second electrical signals in said graphical display module; e. transmitting said second electrical signals for driving motors drivably connected to space rod components in said restitution module; f. driving said space rod components for motion of said stereo-photographs; g. measuring positions of points in said stereo-photographs relative to stereoscopic viewing means; h. computing corrections to the principal distances for x and y directions for each stereo-photograph, based upon said positions; i. computing decentrations in the x and y directions for each stereo-photograph based upon said positions; and j. introducing said corrections and decentrations between said space rod components and said stereo-photographs to move said photographs relative to said stereoscope member for correct relative positioning thereof, whereby restitution of said pair of stereo-photographs is accomplished.
Claim 6
Independent Claim
180 words
A method for restitution of a pair of stereo-photographs comprising the steps of: a. stereoscopically scanning said photographs with a stereoscope member of a restitution module; b. generating first electrical signals by moving a hand positioner module in response to said scanning; c. transmitting said first electrical signals for driving a graphical display module; d. generating second electrical signals in said graphical display module; e. transmitting said second electrical signals for driving motors drivably connected to space rod components in said restitution module; f. driving said space rod components for motion of said stereo-photographs; g. measuring positions of points in said stereo-photographs relative to stereoscopic viewing means; h. computing corrections to the principal distances for x and y directions for each stereo-photograph, based upon said positions; i. computing decentrations in the x and y directions for each stereo-photograph based upon said positions; and j. introducing said corrections and decentrations between said space rod components and said stereo-photographs to move said photographs relative to said stereoscope member for correct relative positioning thereof, whereby restitution of said pair of stereo-photographs is accomplished.
Claim 7
Dependent Claim
17 words
The method of claim 4 wherein said corrections and decentrations are computed by employing automatic computer means.
Claim 8
Dependent Claim
179 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. x stage means; b. y stage means; c. means for mounting said x stage means for motion in the x direction; d. means for mounting said y stage means for motion in the y direction, said x and y directions being orthogonal with respect to each other; e. x and y space rod components; f. means for connecting said x space rod component to said x stage means, said x stage connecting means including means for moving said x stage means in said x direction; g. means for connecting said y space rod component to said y stage means, said y stage connecting means including means for moving said y stage mEans in said y direction; and h. orthogonally resolved Cx and Cy means for correcting the principle distance C for each photograph of said stereoscopic photographs, said Cx means being connected between said x stage means and said x stage connecting means, said Cy means being connected between said y stage means and said y stage connecting means.
Claim 9
Dependent Claim
179 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. x stage means; b. y stage means; c. means for mounting said x stage means for motion in the x direction; d. means for mounting said y stage means for motion in the y direction, said x and y directions being orthogonal with respect to each other; e. x and y space rod components; f. means for connecting said x space rod component to said x stage means, said x stage connecting means including means for moving said x stage means in said x direction; g. means for connecting said y space rod component to said y stage means, said y stage connecting means including means for moving said y stage mEans in said y direction; and h. orthogonally resolved Cx and Cy means for correcting the principle distance C for each photograph of said stereoscopic photographs, said Cx means being connected between said x stage means and said x stage connecting means, said Cy means being connected between said y stage means and said y stage connecting means.
Claim 10
Dependent Claim
44 words
The apparatus as set forth in claim 6 further including: automatic computer means for calculating independent principal distance corrections Delta Cx and Delta Cy and decentrations Delta x and Delta y; and means connected to said computer means for introducing said corrections and decentrations.
Claim 11
Dependent Claim
122 words
The apparatus as set forth in claim 7 wherein said electronic computer means comprises apparatus arranged to accept photographic coordinates x and y, for points in each photograph and further arranged for operating thereon to produce the aforesaid corrections and decentrations by solving the formulas: Delta x + C . tan phi + y . sin omega . sin phi ; Delta y C . tan omega ; Delta Cx x . tan phi + y . sin omega - C . tan omega /2 . sin omega ; and Delta Cy y . tan omega + x . sin omega - C . tan phi /2 . sin phi ; wherein omega represents tilt and phi represents tip of each photograph.
Claim 12
Dependent Claim
121 words
The apparatus as set forth in claim 7 wherein said electronic computer means comprises apparatus arranged to accept photographic coordinates x and y, for points in each photograph and further arranged for operating thereon to produce the aforesaid corrections and decentrations by solving the formulas: Delta x C . tan phi + y . tan omega . tan phi ; Delta y C . tan omega ; Delta Cx x . tan phi + y . tan omega - C . tan omega /2 . tan omega ; and Delta Cy y . tan omega + x . tan phi - C . tan phi /2 . tan phi ; wherein omega represents tilt and phi represents tip of each photograph.
Claim 13
Dependent Claim
129 words
Stereo-photogrammetric apparatus for metric analysis of a model represented by two stereoscopically associated photographs, comprising: a. a stereoscope having two optical train stages; b. stages for mounting said photographs in position to be viewed through said stereoscope; c. means for adjusting the relative positions of said optical train stages and said photograph stages, said means comprising space rod component means, pivotally disposed for operation in horizontal planes to effect said adjustment of said photographic stages and optical train stages; d. electrically driven linkage means connecting said space rod component means and said stages for correcting said relative positions of said stages to compensate for distortions in said photographs; and e. means for computing said corrections and for transmitting signals representative of said corrections to said electrically driven linkage means.
Claim 14
Dependent Claim
129 words
Stereo-photogrammetric apparatus for metric analysis of a model represented by two stereoscopically associated photographs, comprising: a. a stereoscope having two optical train stages; b. stages for mounting said photographs in position to be viewed through said stereoscope; c. means for adjusting the relative positions of said optical train stages and said photograph stages, said means comprising space rod component means, pivotally disposed for operation in horizontal planes to effect said adjustment of said photographic stages and optical train stages; d. electrically driven linkage means connecting said space rod component means and said stages for correcting said relative positions of said stages to compensate for distortions in said photographs; and e. means for computing said corrections and for transmitting signals representative of said corrections to said electrically driven linkage means.
Claim 15
Dependent Claim
133 words
Modular stereo-photogrammetric apparatus having in combination a plurality of modules, comprising: a. a first module comprising manual control means for causing actuation of subsequent modules, said means including electrical synchro-transmitters for different direction motions, and clutch means for actuating said transmitters; b. a second module comprising scanning stereoscope means having electrical synchro-receivers for said motions connected to said synchro-transmitters, said second module further comprising space rod components driven by said receivers for adjusting the positions of said photographs; c. a third modulE comprising electronic computer means for computing independent adjustments of principal distances for, and decentrations in, the x and y directions of each photograph; and d. means for receiving signals from said third module representative of said computed adjustments and mechanically applyling said adjustments between said space rod components and said photographs.
Claim 16
Dependent Claim
133 words
Modular stereo-photogrammetric apparatus having in combination a plurality of modules, comprising: a. a first module comprising manual control means for causing actuation of subsequent modules, said means including electrical synchro-transmitters for different direction motions, and clutch means for actuating said transmitters; b. a second module comprising scanning stereoscope means having electrical synchro-receivers for said motions connected to said synchro-transmitters, said second module further comprising space rod components driven by said receivers for adjusting the positions of said photographs; c. a third modulE comprising electronic computer means for computing independent adjustments of principal distances for, and decentrations in, the x and y directions of each photograph; and d. means for receiving signals from said third module representative of said computed adjustments and mechanically applyling said adjustments between said space rod components and said photographs.
Claim 17
Dependent Claim
70 words
The modular stereo-photogrammetric apparatus of claim 11, further comprising a graphical display module having electrical synchro-receivers connected to said electrical synchro-transmitters of said first module for driving said graphical display module in accordance with movements of said manual control means, and having electrical synchro-transmitters drivably connected to the electrical synchro-receivers of said second module for driving said space rod components in accordance with positions indicated in said graphical display module.
Claim 18
Dependent Claim
88 words
In a photogrammetric stereoplotter employing a pair of stage-mounted photographs, means for compensating for radial distortion in the photographs, comprising: a. a cam having a contour defined as a function of said radial distortion; b. means for viewing points on said photographs; c. means for sensing the locations of said viewed points on said photographs; d. means connecting said sensing means to said cam; and e. electrical means responsive to said contour of said cam for varying the principal distances of said photographs for compensating said radial distortion.
Claim 19
Dependent Claim
88 words
In a photogrammetric stereoplotter employing a pair of stage-mounted photographs, means for compensating for radial distortion in the photographs, comprising: a. a cam having a contour defined as a function of said radial distortion; b. means for viewing points on said photographs; c. means for sensing the locations of said viewed points on said photographs; d. means connecting said sensing means to said cam; and e. electrical means responsive to said contour of said cam for varying the principal distances of said photographs for compensating said radial distortion.
Claim 20
Dependent Claim
18 words
The distortion compensation means of claim 13 further comprising: adjustable means for varying said contour of said cam.
Claim 21
Dependent Claim
108 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. first stage means; b. second stage means supported in spaced relation with respect to said first stage means; c. orthogonally resolved space rod components for said first and second stage means; d. means connecting one of said space rod components to said first stage means, said first stage connecting means including means for moving said first stage means in one direction; and e. means connecting the other of said space rod components to said second stage means, said second stage connecting means including means for moving said second stage means in a direction orthogonal to said one direction.
Claim 22
Dependent Claim
108 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. first stage means; b. second stage means supported in spaced relation with respect to said first stage means; c. orthogonally resolved space rod components for said first and second stage means; d. means connecting one of said space rod components to said first stage means, said first stage connecting means including means for moving said first stage means in one direction; and e. means connecting the other of said space rod components to said second stage means, said second stage connecting means including means for moving said second stage means in a direction orthogonal to said one direction.
Claim 23
Dependent Claim
108 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. x stage means; b. y stage means supported in spaced relation with respect to said x stage means; c. orthogonally resolved x and y space rod components; d. means connecting said x space rod component to said x stage means, said x stage connecting means including means for moving said x stage means in the x direction; and e. means for connecting said y space rod component to said y stage means, said y stage connecting means including means for moving said y stage means in the y direction, said y direction being orthogonal to said x direction.
Claim 24
Dependent Claim
108 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. x stage means; b. y stage means supported in spaced relation with respect to said x stage means; c. orthogonally resolved x and y space rod components; d. means connecting said x space rod component to said x stage means, said x stage connecting means including means for moving said x stage means in the x direction; and e. means for connecting said y space rod component to said y stage means, said y stage connecting means including means for moving said y stage means in the y direction, said y direction being orthogonal to said x direction.
Claim 25
Dependent Claim
182 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. first stage means; b. second stage means; c. means for mounting said first stage means for motion in a first direction; d. means for mounting said second stage means for motion in a second direction, said second direction being orthogonal with respect to said first direction; e. orthogonally resolved space rod components for said first and second stage means; f. means connecting one of said space rod components to said first stage means, said first stage connecting means including means for moving said first stage means in said first direction; g. means connecting the other of said space rod components to said second stage means, said second stage connecting means including means for moving said second stage means in said second directIon; and h. orthogonally resolved means for correcting the principle distance for each photograph, one of said means being supported between said first stage mounting means and said first stage connecting means, the other of said means being supported between said second stage mounting means and said second stage connecting means.
Claim 26
Dependent Claim
182 words
Apparatus for restitution of stereoscopic photographs, said apparatus comprising: a. first stage means; b. second stage means; c. means for mounting said first stage means for motion in a first direction; d. means for mounting said second stage means for motion in a second direction, said second direction being orthogonal with respect to said first direction; e. orthogonally resolved space rod components for said first and second stage means; f. means connecting one of said space rod components to said first stage means, said first stage connecting means including means for moving said first stage means in said first direction; g. means connecting the other of said space rod components to said second stage means, said second stage connecting means including means for moving said second stage means in said second directIon; and h. orthogonally resolved means for correcting the principle distance for each photograph, one of said means being supported between said first stage mounting means and said first stage connecting means, the other of said means being supported between said second stage mounting means and said second stage connecting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |