Automatic orthophoto printer
Abstract
Abstract THIS APPLICATION DISCLOSES AN IMPROVED SYSTEM WHICH OPERATES AUTOMATICALLY TO PROVIDE AN ORTHOPHOTOGRAPH FROM ONE OR MORE PAIRS OF STEREO AERIAL PHOTOGRAPHS. THE SYSTEM DISCLOSED INCLUDES FIRST AND SECOND TELEVISION TYPE PHOTO-SCANNING DEVICES SUCH AS VIDICONS WHICH ARE OPERATED IN SYNCHRONISM TO PROVIDE DATA SIGNALS FOR EACH SPOT OF THE TWO PHOTOGRAPHS MAKING UP A STEREO PAIR. CORRELATION NETWORKS OPERATE ON THE DATA SIGNALS TO DETERMINE TO AMOUNT OF X AND Y PARALLAX. SLOPE LIMITTING CIRCUITS IN THE X PARALLAX SYSTEM PROVIDE SMOOTHING OF THE HEIGHT SIGNAL AND ELIMINATE DISCONTINUITIES WHICH MAY EXIST IN THE SIGNALS BEING PROCESSED. IMAGE TRANSFORMATION CIRCUITRY AND RASTER SHAPING CIRCUITS CONTROLLED THEREBY ALTER THE SCAN PATTERNS OF THE TWO VIDICONS. THE PROBLEMS ASSOCIATED WITH CHANGES IN THE ELEVATION OF THE TERRAIN BEING MAPPED ARE OVERCOME TO AN EXTENT SUCH THAT PATCH MAPPED ARE OVERCOME TO AN EXTEND SUCH OUT THE USUAL DISCREPANCIES IN ALIGNMENT OF DETAIL IN ADJACENT PATCHES.
Inventors
- 👤 Gilbert L Hobrough
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |